MGIC INVESTMENT CORP

MGIC Investment Corporation and Subsidiaries

Notes to Consolidated Financial Statements

September 30, 2026

(Unaudited)

Note 1. Nature of Business and Basis of Presentation

MGIC Investment Corporation is a holding company which, through Mortgage Guaranty Insurance Corporation (“MGIC”), is principally engaged in the mortgage insurance business. We provide mortgage insurance to lenders throughout the United States and to government sponsored entities to protect against loss from defaults on low down payment residential mortgage loans. MGIC Assurance Corporation (“MAC”) and MGIC Indemnity Corporation (“MIC”), insurance subsidiaries of MGIC, provide insurance for certain mortgages under Fannie Mae and Freddie Mac (the “GSEs”) credit risk transfer programs. We operate as a single segment for purposes of evaluating financial performance and allocating resources.

The accompanying unaudited consolidated financial statements of MGIC Investment Corporation and its wholly-owned subsidiaries have been prepared in accordance with the instructions to Form 10-Q as prescribed by the Securities and Exchange Commission (“SEC”) for interim reporting and do not include all of the other information and disclosures required by accounting principles generally accepted in the United States of America (“GAAP”). These statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2025 included in our 2025 Annual Report on Form 10-K. As used below, “we,” “our” and “us” refer to MGIC Investment Corporation’s consolidated operations or to MGIC Investment Corporation, as the context requires.

In the opinion of management, the accompanying financial statements include all adjustments, consisting primarily of normal recurring accruals, necessary to fairly state our consolidated financial position and consolidated results of operations for the periods indicated. The consolidated results of operations for an interim period are not necessarily indicative of the results that may be expected for the year ending December 31, 2026.

The substantial majority of our new insurance written (“NIW”) has been for loans purchased by the GSEs. The current private mortgage insurer eligibility requirements ("PMIERs") of the GSEs include financial requirements, as well as business, quality control and certain transactional approval requirements. The financial requirements of the PMIERs require a mortgage insurer’s "Available Assets" (generally only the most liquid assets of an insurer) to equal or exceed its "Minimum Required Assets" (which are based on an insurer's book of risk in force, and calculated from tables of factors with several risk dimensions). Based on our application of the PMIERs, as of September 30, 2026, MGIC’s Available Assets are in excess of its Minimum Required Assets; therefore MGIC is in compliance with the PMIERs and eligible to insure loans purchased by the GSEs.

Subsequent Events

We have considered subsequent events through the date of this filing.

Note 2. Significant Accounting Policies

Prospective Accounting and Reporting Developments

Relevant new amendments to accounting standards, which are not yet effective or adopted.

Disaggregation of Income Statement Expenses: ASU 2024-03

In November 2024, the FASB issued ASU 2024-03 requiring additional disclosure of the nature of expenses included in the income statement. The new standard requires disclosures about specific expenses included in the expense captions presented on the face of the income statement as well as disclosures about selling expenses. ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods within annual reporting periods beginning after December 15, 2027, as clarified by ASU 2025-01, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40). The requirements will be applied prospectively with the option for retrospective application. Early adoption is permitted. We are currently evaluating the impacts the adoption of this guidance will have on our disclosures, but do not expect it to have a material impact.

Note 3. Debt

Debt Obligations

The aggregate carrying value of our 5.25% Senior Notes (“5.25% Notes”) and the par value as of September 30, 2026 and December 31, 2025 is presented in table 3.1 below.

The 5.25% Notes are an obligation of our holding company, MGIC Investment Corporation.

See Note 3 - “Debt” in our Annual Report on Form 10-K for the year ended December 31, 2025 for additional information pertaining to our debt obligation. As of September 30, 2026, we are in compliance with our debt covenants.

Interest Payments

Interest payments were $34.1 million for the nine months ended September 30, 2026 and 2025.

Note 4. Earnings per Share

Basic earnings per share (“EPS”) is calculated by dividing net income by the weighted average number of shares of common stock outstanding, including participating securities. Our participating securities are comprised of vested restricted stock and restricted stock units (“RSUs”) with non-forfeitable rights to dividends. Diluted EPS includes the components of basic EPS and also gives effect to dilutive common stock equivalents. The determination of whether components are dilutive is calculated independently for each period. We calculate diluted EPS using the treasury stock method which reflects the potential dilution that could occur if unvested RSUs result in the issuance of common stock.

Table 4.1 reconciles the numerators and denominators used to calculate basic and diluted EPS.

Note 5. Investments

Fixed Income Securities

Our fixed income securities classified as available-for-sale at September 30, 2026 and December 31, 2025 are shown in tables 5.1a and 5.1b below.

We had $11.7 million and $12.6 million of investments at fair value on deposit with various states as of September 30, 2026 and December 31, 2025, respectively, due to regulatory requirements of those state insurance departments.

In connection with our insurance and reinsurance activities within MAC and MIC, we are required to maintain assets in trusts for the benefit of contractual counterparties, which had investments at fair value of $181.2 million and $185.7 million at September 30, 2026 and December 31, 2025, respectively.

The amortized cost and fair values of fixed income securities at September 30, 2026, by contractual maturity, are shown in table 5.2 below. Actual maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Because most mortgage and asset-backed securities are not due at a single maturity date, they are listed in separate categories.

Equity Securities

The cost and fair value of investments in equity securities at September 30, 2026 and December 31, 2025 are shown in tables 5.3a and 5.3b below.

Net Gains (Losses) on Investments and Other Financial Instruments

The net gains (losses) on investments and other financial instruments and the proceeds from the sale of fixed income securities classified as available-for-sale securities are shown in table 5.4 below.

(1) See Note 6 "Fair Value Measurements" for discussion of the embedded derivative on the Home Re Transactions.

Other Invested Assets

Our other invested assets balance includes an investment in FHLB stock that is carried at cost, which due to its nature approximates fair value. Ownership of FHLB stock provides access to a secured lending facility, subject to certain conditions, which includes requirements to post collateral and to maintain a minimum investment in FHLB stock.

Unrealized Investment Losses

Tables 5.5a and 5.5b below summarize, for all available-for-sale investments in an unrealized loss position at September 30, 2026 and December 31, 2025, the aggregate fair value and gross unrealized loss by the length of time those securities have been continuously in an unrealized loss position. The fair value amounts reported in tables 5.5a and 5.5b are estimated using the process described in Note 6 - “Fair Value Measurements” to these consolidated financial statements and in Note 2 - “Significant Accounting Policies” to the consolidated financial statements in our 2025 Annual Report on Form 10-K.

There were 1,298 and 712 securities in an unrealized loss position at September 30, 2026 and December 31, 2025, respectively. Based on current facts and circumstances, we believe the unrealized losses as of September 30, 2026 presented in table 5.5a above are not indicative of the ultimate collectability of the par value of the securities. The unrealized losses in all categories of our investments at September 30, 2026 were primarily caused by increases in prevailing interest rates. We also rely upon estimates of several credit and non-credit factors in our review and evaluation of individual investments to determine whether a credit impairment exists. All of the securities in an unrealized loss position are current with respect to their interest obligations.

Note 6. Fair Value Measurements

Recurring Fair Value Measurements

The following describes the valuation methodologies generally used by the independent pricing sources, or by us, to measure financial instruments at fair value, including the general classification of such financial instruments pursuant to the valuation hierarchy.

Fixed Income Securities:

•U.S. Treasury Securities and Obligations of U.S. Government Corporations and Agencies: Securities with valuations derived from quoted prices for identical instruments in active markets that we can access are categorized in Level 1 of the fair value hierarchy. Securities valued by surveying the dealer community, obtaining relevant trade data, benchmark quotes and spreads and incorporating this information in the valuation process are categorized as Level 2 of the fair value hierarchy.

•Corporate Debt Securities are valued by obtaining relevant trade data, benchmark quotes and spreads and broker/dealer quotes and incorporating this information into the valuation process. These securities are generally categorized in Level 2 of the fair value hierarchy.

•Obligations of U.S. States & Political Subdivisions are valued by tracking, capturing, and analyzing quotes for active issues and trades reported via the Municipal Securities Rulemaking Board records. Daily briefings and reviews of current economic conditions, trading levels, spread relationships, and the slope of the yield curve provide further data for evaluation. These securities are generally categorized in Level 2 of the fair value hierarchy.

•Residential Mortgage-Backed Securities ("RMBS") are valued by monitoring interest rate movements, and other pertinent data daily. Incoming market data is enriched to derive spread, yield and/or price data as appropriate, enabling known data points to be extrapolated for valuation application across a range of related securities. These securities are generally categorized in Level 2 of the fair value hierarchy.

•Commercial Mortgage-Backed Securities ("CMBS") are valued using techniques that reflect market participants’ assumptions and maximize the use of relevant observable inputs including quoted prices for similar assets, benchmark yield curves and market corroborated inputs. Evaluation uses regular reviews of the inputs for securities covered, including executed trades, broker quotes, credit information, collateral attributes and/or cash flow waterfall as applicable. These securities are generally categorized in Level 2 of the fair value hierarchy.

•Asset-Backed Securities ("ABS") are valued using spreads and other information solicited from market buy-and-sell-side sources, including primary and secondary dealers, portfolio managers, and research analysts. Cash flows are generated for each tranche, benchmark yields are determined, and deal collateral performance and tranche level attributes including trade activity, bids, and offers are applied, resulting in tranche specific prices. These securities are generally categorized in Level 2 of the fair value hierarchy.

•Collateralized loan obligations ("CLOs") are valued by evaluating manager rating, seniority in the capital structure, assumptions about prepayment, default and recovery and their impact on cash flow generation. Loan level net asset values are determined and aggregated for tranches and as a final step prices are checked against available recent trade activity. These securities are generally categorized in Level 2 of the fair value hierarchy.

•Foreign government debt is valued by surveying the dealer community, obtaining relevant trade data, benchmark quotes and spreads and incorporating this information into the valuation process. These securities are generally categorized in Level 2 of the fair value hierarchy.

•Commercial Paper, with an original maturity greater than 90 days, is valued using market data for comparable instruments of similar maturity and average yields. These securities are generally categorized in Level 2 of the fair value hierarchy.

Equity Securities: Consist of actively traded, exchange-listed equity securities, including exchange traded funds (“ETFs”) and Bond Mutual Funds, with valuations derived from quoted prices for identical assets in active markets that we can access. These securities are valued in Level 1 of the fair value hierarchy.

Cash Equivalents: Include money market funds and treasury bills with valuations derived from quoted prices for identical assets in active markets that we can access. These securities are valued in level 1 of the fair value hierarchy. Other fixed income securities included in this category are valued using market data for comparable instruments and classified as level 2 in the fair value hierarchy.

Assets measured at fair value, by hierarchy level, as of September 30, 2026 and December 31, 2025 are shown in tables 6.1a and 6.1b below. The fair value of the assets is estimated using the process described above, and in Note 2 - “Significant Accounting Policies” to the consolidated financial statements in our 2025 Annual Report on Form 10-K.

Additional fair value disclosures related to our investment portfolio are included in Note 5 – “Investments.”

In addition to the assets carried at fair value discussed above, we have embedded derivatives carried at fair value related to our Home Re Transactions that are classified as “Other liabilities” or “Other assets” in our consolidated balance sheets. The estimated fair value related to our embedded derivatives reflects the present value impact of the variation in investment income on the assets held by the reinsurance trusts and the contractual reference rate on the Home Re Transactions used to calculate the reinsurance premiums we estimate we will pay over the estimated remaining life. These liabilities or assets are categorized in Level 3 of the fair value hierarchy. At September 30, 2026 and December 31, 2025, the fair value of the embedded derivatives was a liability of $1.0 million and $0.4 million, respectively. (See Note 7 - "Reinsurance" for more information about our Home Re Transactions.)

Real estate acquired through claim settlement is carried at fair values and is reported in “Other assets” on the consolidated balance sheet. These assets are categorized as Level 3 of the fair value hierarchy. For the nine months ended September 30, 2026 and 2025, purchases of real estate acquired were $4.2 million and $3.8 million, respectively. For the nine months ended September 30, 2026 and 2025, sales of real estate acquired were $4.3 million and $2.5 million, respectively.

Financial Assets and Liabilities Not Measured at Fair Value

Other invested assets include an investment in FHLB stock that is carried at cost, which due to restrictions that require it to be redeemed or sold only to the security issuer at par value, approximates fair value. The fair value of other invested assets is categorized as Level 2.

Financial liabilities include our outstanding debt obligation. The fair value of our 5.25% Notes was based on observable market prices and is categorized as level 2.

Table 6.2 presents the carrying value and fair value of our financial assets and liabilities disclosed, but not carried, at fair value at September 30, 2026 and December 31, 2025.

Note 7. Reinsurance

We have in place reinsurance agreements executed under quota share reinsurance (“QSR”) Transactions and excess-of-loss (“XOL”) Transactions as discussed below. The effect of all of our reinsurance transactions on our consolidated statement of operations is shown in table 7.1 below.

(1)Ceded premiums earned are shown net of profit commission.

Quota Share Reinsurance

We have entered into QSR Transactions with panels of third-party reinsurers to cede a fixed percentage of premiums earned and received and losses incurred on insurance covered by the transactions. We receive the benefit of a ceding commission equal to 20% of premiums ceded before profit commission. We also receive the benefit of a profit commission through a reduction of premiums we cede. The profit commission varies inversely with the level of losses on a “dollar for dollar” basis and can be eliminated at annual loss ratios higher than we have experienced on our QSR Transactions. Ceded losses incurred are impacted by the delinquencies covered by our QSR Transactions, our estimates of payments that will be ultimately made on those delinquencies, and claim payments covered by our QSR Transactions. Each of our QSR Transactions typically have annual loss ratio caps of 300% and lifetime loss ratio caps of 200%.

We can elect to terminate the QSR Transactions under specified scenarios without penalty upon prior written notice, including if we will receive less than 90% (80% for the Credit Union QSR Transaction) of the full credit amount under the PMIERs, full financial statement credit or full credit under applicable regulatory capital requirements for the risk ceded in any required calculation period.

Under the terms of our QSR Transactions, ceded premiums, ceding commissions, profit commission, and ceded losses paid and LAE paid are settled net on a quarterly basis. The ceded premiums due, after deducting the related ceding commission and profit commission is reported within Other liabilities on the consolidated balance sheets.

The reinsurance recoverable on loss reserves related to our QSR Transactions was $80.6 million as of September 30, 2026 and $65.1 million as of December 31, 2025. The reinsurance recoverable balance is secured by funds on deposit from the reinsurers (which does not include letters of credit), the minimum amount of which is based on the greater of 1) a reinsurer's funding requirements under PMIERs or 2) ceded reserves and unpaid losses. Each of the reinsurers under our QSR Transactions has an insurer financial strength rating of A- or better (or a comparable rating) by Standard and Poor's Rating Services, A.M. Best, Moody's, or a combination of the three.

Table 7.2 below provides additional detail regarding our QSR Transactions in effect as of September 30, 2026.

(1)We will receive a profit commission provided the annual loss ratio on policies covered under the transaction remains below this ratio.

(2)We can elect early termination of the QSR Transaction beginning on December 31, 2028, and quarterly thereafter.

Table 7.3 provides additional detail regarding optional termination dates and optional reductions to our quota share percentage which can, in each case, be elected by us for a fee. Under the optional reduction to the quota share percentage, we may reduce our quota share percentage from the original percentage shown in table 7.2 to the percentage shown in table 7.3.

(1)We can elect early termination of the QSR Transaction beginning on this date, and semi-annually thereafter.

(2)We can elect to reduce the quota share percentage beginning on this date, and semi-annually thereafter.

Excess of Loss Reinsurance

We have XOL Transactions with panels of unaffiliated reinsurers executed through the traditional reinsurance market (“Traditional XOL Transactions”) and with unaffiliated special purpose insurers (“Home Re Transactions”).

Under our XOL Transactions, we retain the first layer of aggregate losses, after which the reinsurers provide second layer coverage up to the outstanding reinsurance coverage amount. We retain losses paid in excess of the outstanding reinsurance coverage amount.

Traditional XOL Transactions

The reinsurance premiums ceded under the Traditional XOL Transactions are based off of the remaining reinsurance coverage levels. The reinsured coverage levels are secured by funds on deposit from reinsurers (which does not include letters of credit), the minimum amount of which is based on the greater of 1) a reinsurer's funding requirements under PMIERs or 2) ceded reserves and unpaid losses. Each of the reinsurers under our Traditional XOL Transactions has an insurer financial strength rating of A- or better (or a comparable rating) by Standard and Poor’s Rating Services, A.M. Best, Moody’s, or a combination of the three. We can elect to terminate our Traditional XOL Transactions under specified scenarios without penalty upon prior written notice, including if we will receive less than the full credit amount under the PMIERs, full financial statement credit or full credit under applicable regulatory capital requirements for the risk ceded in any required calculation period.

Insurance Linked Notes

The Home Re Entities financed the coverages by issuing mortgage insurance-linked notes (“ILNs”) to unaffiliated investors in an aggregate amount equal to the initial reinsurance coverage amounts. Each ILN is non-recourse to any assets of MGIC or affiliates. The proceeds of the ILNs, which were deposited into reinsurance trusts for the benefit of MGIC, will be the source of reinsurance claim payments to MGIC and principal repayments on the ILNs.

The reinsurance premiums ceded to each Home Re Entity are composed of coverage, initial expense and supplemental premiums. The coverage premiums are generally calculated as the difference between the amount of interest payable by the Home Re Entity on the remaining reinsurance coverage levels, and the investment income collected on the collateral assets held in a reinsurance trust account and used to collateralize the Home Re Entity’s reinsurance obligation to MGIC. The amount of monthly reinsurance coverage premium ceded will fluctuate due to changes in the reference rate and changes in money market rates that affect investment income collected on the assets in the reinsurance trust. As a result, we concluded that each Home Re Transaction contains an embedded derivative that is accounted for separately as a freestanding derivative. The fair values of the derivatives at September 30, 2026 and December 31, 2025, were not material to our consolidated balance sheet and the change in fair value during the three and nine months ended September 30, 2026 and September 30, 2025 were not material to our consolidated statements of operations. (See Note 5 - “Investments” and Note 6 - “Fair Value Measurements”.)

Payment of principal on the related ILNs will be suspended and the reinsurance coverage available to MGIC under the transactions will not be reduced by such principal payments until a target level of credit enhancement is obtained or if certain thresholds or “Trigger Events” are reached, as defined in the related ILNs transaction agreement. As of September 30, 2026, there were no "Trigger Events".

The following table provides a summary of our XOL Transactions that were in effect as of September 30, 2026.

(1)We have the right to terminate the Home Re Transactions under certain circumstances, including an optional call feature that provides us the right to terminate if the outstanding principal balance of the related insurance-linked notes falls below 10% of the initial principal balance of the related insurance-linked notes, and on any payment date on or after the respective Optional Call Date. We can elect early termination of the Traditional XOL Transactions beginning on this date, and quarterly thereafter.

Tables 7.4b and 7.4c provide additional information about our XOL Transactions in effect as of the dates indicated. Tables 7.4b and 7.4c exclude the 2026 Traditional XOL Transaction, which is still within its contractual fill-up period covering policies in force from

January 1, 2026 through December 31, 2026. The 2026 Traditional XOL Transaction provides up to $184 million of reinsurance coverage on eligible NIW in 2026.

(1)The initial and remaining excess of loss reinsurance coverage is reduced by the applicable funding percentage.

(2)The funding percentage represents the aggregate outstanding note balances divided by the aggregate ending coverage amounts.

In the third quarter of 2026 we exercised our option to terminate the reinsurance agreement with Home Re 2021-2, Ltd., as such, the insurance-linked notes were redeemed in full.

At the time the Home Re Transactions were entered into, we concluded that each Home Re Entity is a variable interest entity (“VIE”). A VIE is a legal entity that does not have sufficient equity at risk to finance its activities without additional subordinated financial support or is structured such that equity investors lack the ability to make sufficient decisions relating to the entity’s operations through voting rights or do not substantively participate in gains and losses of the entity. Given that MGIC (1) does not have the unilateral power to direct the activities that most significantly affect each Home Re Entity’s economic performance and (2) does not have the obligation, outside the terms of the reinsurance agreement, to absorb losses or the right to receive benefits of each Home Re Entity that could be significant to the Home Re Entity, consolidation of the Home Re Entities is not required.

We are required to disclose our maximum exposure to loss, which we consider to be an amount that we could be required to record in our statements of operations, as a result of our involvement with the VIEs under our Home Re Transactions. As of September 30, 2026, and December 31, 2025, we did not have material exposure to the VIEs as we have no investment in the VIEs and had no reinsurance claim payments due from the VIEs under our reinsurance transactions. We are unable to determine the timing or extent of claims from losses that may be ceded under the reinsurance transactions. The VIE assets are deposited in reinsurance trusts for the benefit of MGIC that will be the source of reinsurance claim payments to MGIC. The purpose of the reinsurance trusts is to provide security to MGIC for the obligations of the VIEs under the reinsurance transactions. The trustee of the reinsurance trusts, a recognized provider of corporate trust services, has established segregated accounts within the reinsurance trusts for the benefit of MGIC, pursuant to the trust agreements. The trust agreements are governed by, and construed in accordance with, the laws of the State of New York. If the trustee of the reinsurance trusts failed to distribute claim payments to us as provided in the reinsurance trusts, we would incur a loss related to our losses ceded under the reinsurance transactions and deemed unrecoverable. We are also unable to determine the impact such possible failure by the trustee to perform pursuant to the reinsurance trust agreements may have on our consolidated financial statements. As a result, we are unable to quantify our maximum exposure to loss related to our involvement with the VIEs. MGIC has certain termination rights under the reinsurance transactions should its claims not be paid.

Table 7.5 presents the total assets of the Home Re Entities as of September 30, 2026 and December 31, 2025.

The reinsurance trust agreements provide that the trust assets may generally only be invested in certain money market funds that (i) invest at least 99.5% of their total assets in cash or direct U.S. federal government obligations, such as U.S. Treasury bills, as well as other short-term securities backed by the full faith and credit of the U.S. federal government or issued by an agency of the U.S. federal government, (ii) have a principal stability fund rating of “AAAm” by S&P or a money market fund rating of “Aaamf” by Moody’s as of the Closing Date and thereafter maintain any rating with either S&P or Moody’s, and (iii) are permitted investments under the applicable credit for reinsurance laws and applicable PMIERs credit for reinsurance requirements.

Reinsurance transactions effective in subsequent periods

QSR Transactions

•We executed a 40% QSR Transaction with a group of unaffiliated reinsurers covering eligible 2027 NIW.

•We agreed to terms for a 40% QSR transaction covering eligible 2028 NIW and a 20% QSR transaction covering eligible 2029 NIW with unaffiliated reinsurers.

•We agreed to amended terms with certain participants in our 2022 QSR and 2023 QSR Transaction, covering policy year 2023, reducing the quota share cede rate to 13.98%. Under the amended terms, we will generally receive an annual profit commission provided the annual loss ratio on loans covered under the transaction remain below 67.5%. The amended terms are effective December 31, 2026.

•We agreed to amended terms with participants in our 2023 QSR Transaction that are effective December 31, 2026. Under the amended terms we will generally receive an annual profit commission provided the annual loss ratio on loans covered under the transaction remain below 67.5%.

Traditional XOL Transactions

•We executed a traditional XOL reinsurance transaction which provides up to $168 million of reinsurance coverage on eligible 2027 NIW.

Note 8. Loss Reserves

We establish case reserves and LAE reserves on delinquent loans that were reported to us as two or more payments past due and have not become current or resulted in a claim payment. Such loans are referred to as being in our delinquency inventory. Case reserves are established by estimating the number of loans in our delinquency inventory that will result in a claim payment, which is referred to as the claim rate, and further estimating the amount of the claim payment, which is referred to as claim severity.

IBNR reserves are established for estimated losses from delinquencies we estimate have occurred prior to the close of an accounting period, but have not yet been reported to us. IBNR reserves are also established using estimated claim rates and claim severities.

Estimation of losses is inherently judgmental. The conditions that affect our estimates include the current and future state of the domestic economy, including unemployment and the strength of local housing markets; exposure on insured loans; the number of loans reported to us as delinquent; the amount of time between delinquency and claim filing (all else being equal, the longer the period between delinquency and claim filing, the greater the severity); the effectiveness of loss mitigation efforts; and curtailments and rescissions. Additionally, past and future government initiatives and actions taken by the GSEs to keep borrowers in their homes may impact our estimates. The actual amount of the claim payments may differ substantially from our loss reserve estimates, and changes in those estimates, whether arising from the factors described above or from other unforeseen circumstances, could materially affect our financial results, even in a stable economic environment.

In considering the potential sensitivity of the factors underlying our estimate of loss reserves, it is possible that even a relatively small change in our estimated claim rate or claim severity could have a material impact on loss reserves and, correspondingly, on our consolidated results of operations even in a stable economic environment. For example, as of September 30, 2026, assuming all other factors remain constant, a $1,000 increase/decrease in the average severity reserve factor would change the loss reserve amount by approximately +/- $7 million. A one percentage point increase/decrease in the average claim rate reserve factor would change the loss reserve amount by approximately +/- $21 million.

The “Losses incurred” section of table 8.1 below shows losses incurred on delinquencies that occurred in the current year and in prior years. The amount of losses incurred relating to delinquencies that occurred in the current year represents the estimated amount to be ultimately paid on such delinquencies. The amount of losses incurred relating to delinquencies that occurred in prior years represents the difference between the actual claim rate and claim severity associated with those delinquencies resolved in the current year compared to the estimated claim rate and claim severity at the prior year-end, as well as a re-estimation of amounts to be ultimately paid on delinquencies continuing from the end of the prior year. This re-estimation of the claim rate and claim severity is the result of our review of current trends in the delinquency inventory, such as percentages of delinquencies that have resulted in a claim, the amount of the claims relative to the average loan exposure, changes in the relative level of delinquencies by geography and changes in average loan exposure.

The “Losses paid” section of table 8.1 below shows the amount of losses paid on delinquencies that occurred in the current year and losses paid on delinquencies that occurred in prior years.

Table 8.1 provides a reconciliation of beginning and ending loss reserves as of and for the nine months ended September 30, 2026 and 2025.

(1)A positive number for prior year loss reserve development indicates a deficiency of prior year reserves. A negative number for prior year loss reserve development indicates a redundancy of prior year loss reserves. See the following table for more information about prior year loss reserve development.

The increase in the current year losses incurred in the nine months ended September 30, 2026 as compared to the nine months ended September 30, 2025 is primarily due to an increase in new delinquencies reported and an increase in estimated severity on current year delinquencies.

The favorable loss development on previously received delinquencies for the nine months ended September 30, 2026 and September 30, 2025 primarily resulted from a decrease in the expected claim rate on previously received delinquencies. Home price appreciation experienced in recent years has allowed some borrowers to cure their delinquencies through the sale of their property.

The prior year loss reserve development for the nine months ended September 30, 2026 and 2025 is shown in table 8.2 below.

(1)A positive number for prior year loss reserve development indicates a deficiency of prior year loss reserves. A negative number for prior year loss reserve development indicates a redundancy of prior year loss reserves.

Premium Refunds

Our estimate of premiums to be refunded on expected claim payments is accrued for separately in “Other Liabilities” on our consolidated balance sheets and was $11.2 million and $11.4 million at September 30, 2026 and December 31, 2025, respectively.

Note 9. Other Comprehensive Income

The pretax and related income tax benefit (expense) components of our other comprehensive income (loss) for the three and nine months ended September 30, 2026 and 2025 are included in table 9.1 below.

The pretax and related income tax benefit (expense) components of the amounts reclassified from our accumulated other comprehensive income (loss) (“AOCI”) to our consolidated statements of operations for the three and nine months ended September 30, 2026 and 2025 are included in table 9.2 below.

(1)Increases (decreases) Net realized investment gains (losses) on the consolidated statements of operations.

(2)Decreases (increases) Other underwriting and operating expenses, net on the consolidated statements of operations.

A rollforward of AOCI for the nine months ended September 30, 2026, including amounts reclassified from AOCI, are included in table 9.3 below.

Note 10. Benefit Plans

We have a non-contributory defined benefit pension plan, as well as a supplemental executive retirement plan that covered eligible employees through December 31, 2022. Effective January 1, 2023, these plans were frozen (no future benefits will be accrued for participants due to employment and no new participants will be added). Participants in these plans were fully vested in their benefits as of December 31, 2022. We also offer benefits for retired domestic employees and their eligible spouses and dependents under a postretirement benefit plan. Participation in this plan is limited to eligible employees that participated in the defined benefit pension plan.

Tables 10.1 and 10.2 provide the components of net periodic benefit cost for our pension, supplemental executive retirement and other postretirement benefit plans for the three and nine months ended September 30, 2026 and 2025.

(1)Effective January 1, 2026, company service cost includes expected administrative expenses of the defined benefit pension plan.

Note 11. Shareholders’ Equity

Share Repurchase Programs

Repurchases of our common stock may be made from time to time on the open market (including through 10b5-1 plans) or through privately negotiated transactions. In the nine months ended September 30, 2026, we repurchased 19.0 million shares for $521.7 million, inclusive of commissions. In 2025, we repurchased approximately 30.1 million shares of our common stock for $782.0 million, inclusive of commissions. As of September 30, 2026, we had remaining authorization to repurchase $653.5 million of our common stock under our existing share repurchase programs through December 31, 2028. In October 2026, we repurchased an additional 2.5 million shares for $70.2 million, inclusive of commissions.

Cash Dividends

In the first and second quarters of 2026, we paid quarterly cash dividends of $0.15 per share. In the third quarter of 2026, we paid a quarterly cash dividend of $0.17 per share. On October 29, 2026, the Board of Directors declared a quarterly cash dividend to the holders of the company’s common stock of $0.17 per share payable on November 23, 2026, to shareholders of record on November 12, 2026.

Note 12. Share-Based Compensation

We have certain share-based compensation plans. Under the fair value method, compensation cost is measured at the grant date based on the fair value of the award and is recognized over the service period which generally corresponds to the vesting period. Awards under our plans generally vest over periods ranging fromone tothree years, although awards to our non-employee directors vest immediately. The grant date fair value of awards granted to executive officers and non-employee directors is calculated based on the stock price as of the grant date, discounted to account for theone year post-vesting holding period to which the awards are subject.

Table 12.1 shows the number of restricted stock units (RSUs) granted to employees and non-employee directors and the weighted average fair value per share during the periods presented.

(1)Shares granted are subject to performance conditions under which the target number of shares granted may vest from 0% to 200%.

Note 13. Statutory Information

Statutory Capital Requirements

The insurance laws of 16 jurisdictions, including Wisconsin, our domiciliary state, require a mortgage insurer to maintain a minimum amount of statutory capital relative to the RIF (or a similar measure) in order for the mortgage insurer to continue to write new business. We refer to these requirements as the “State Capital Requirements” and, together with the GSE Financial Requirements, as the “Financial Requirements.” While they vary among jurisdictions, the most common State Capital Requirements allow for a maximum risk-to-capital ratio of 25 to 1. A risk-to-capital ratio will increase if (i) the percentage decrease in capital exceeds the percentage decrease in insured risk, or (ii) the percentage increase in capital is less than the percentage increase in insured risk. Wisconsin does not regulate capital by using a risk-to-capital measure but instead requires a minimum policyholder position (“MPP”). MGIC’s “policyholder position” includes its net worth or surplus, and its contingency loss reserve. Our policyholders’ position was above the required MPP and our risk-to-capital ratio was below the maximum allowed by jurisdictions with State Capital Requirements at September 30, 2026.

Dividend Restrictions

MGIC is subject to statutory regulations as to payment of dividends. The maximum amount of dividends that MGIC may pay in any twelve-month period without regulatory approval by the OCI is the lesser of adjusted statutory net income or 10% of statutory policyholders’ surplus as of the preceding calendar year end. Adjusted statutory net income is defined for this purpose to be the greater of statutory net income, net of realized investment gains, for the calendar year preceding the date of the dividend or statutory net income, net of realized investment gains, for thethree calendar years preceding the date of the dividend less dividends paid within the firsttwo of the preceding three calendar years. The maximum dividend that could be paid, without regulatory approval, is reduced by dividends paid in the twelve months preceding the dividend payment date. Before making any dividend payments, we notify the OCI to ensure it does not object. In the nine months ended September 30, 2026, MGIC paid a dividend of $400 million to the holding company. In November 2026, MGIC paid an additional $350 million dividend to the holding company.

Statutory Financial Information

The OCI recognizes only statutory accounting principles prescribed, or practices permitted by the State of Wisconsin for determining and reporting the financial condition and results of operations of an insurance company. The OCI has adopted certain prescribed accounting practices that differ from those found in other states. Specifically, Wisconsin domiciled companies record changes in the contingency loss reserves through their income statement as a change in underwriting deduction. As a result, in periods in which MGIC is increasing contingency loss reserves, statutory net income is reduced. The statutory net income, policyholders’ surplus, and contingency loss reserves of our insurance subsidiaries, including MGIC, are shown in table 13.1.

Note 14. Segment Reporting

We operate as a single reportable segment, which is defined as Mortgage Insurance. This segment generates revenue by providing mortgage insurance to mortgage lending institutions and mortgage credit investors and by providing reinsurance under the GSEs credit risk transfer programs. The results of our Mortgage Insurance segment are reported within our financial statements as the consolidated financial results for MGIC Investment Corporation and subsidiaries. The accounting policies of the Mortgage Insurance segment are the same as those described in Note 2 - “Significant Accounting Policies” to the consolidated financial statements in our 2025 Annual Report on Form 10-K.

The Senior Management Oversight Committee (“SMOC”), acts as the Company's chief operating decision maker (“CODM”). The CODM uses consolidated net income (loss) as the primary GAAP measure to evaluate actual financial performance versus planned financial performance and to allocate resources. The measure of segment assets is reported on the balance sheet as total consolidated assets.

The table below presents a disaggregation of significant segment expenses as monitored by our CODM:

(1)Outside services expense generally includes expenses related to outsourced IT services and consulting services.

(2)Premium taxes are taxes paid to states and municipalities based upon the amount of premiums written.

(3)All other underwriting and operating expenses include ceding commissions (a reduction to our underwriting expenses, see Note 7 - "Reinsurance"), computer hardware and software expenses, legal, audit, insurance, and general and administrative expenses.

Note 15. Litigation and Contingencies

We operate in a highly regulated industry that is subject to the risk of litigation and regulatory proceedings, including related to our claims paying practices. From time to time, we are involved in disputes and legal proceedings in the ordinary course of business. In our opinion, based on the facts known at this time, the ultimate resolution of these ordinary course disputes and legal proceedings will not have a material adverse effect on our financial condition or results of operations.

Under ASC 450-20, until a loss associated with settlement discussions or legal proceedings becomes probable and can be reasonably estimated, we do not accrue an estimated loss. When we determine that a loss is probable and can be reasonably estimated, we record our best estimate.