Hamilton Insurance Group Ltd

At March 31, 2024 and December 31, 2023, total cash and investments was $4.4 billion and $4.0 billion, respectively. However, a significant portion of the total cash and investments balances held were invested in TS Hamilton Fund as collateral for the investments held by the underlying trading vehicles, as shown in the tables under the "TS Hamilton Fund" discussion.

Total cash and investments increased from $4.0 billion at December 31, 2023 to $4.4 billion at March 31, 2024. The increase was driven by both the TS Hamilton Fund, primarily due to positive investment returns for the three months ended March 31, 2024 and fixed maturity investments as we deployed more cash into the fixed maturity trading portfolio to take advantage of higher interest rates. The TS Hamilton Fund represents $2.0 billion and $1.8 billion of the total cash and investments as at March 31, 2024 and December 31, 2023, respectively.

Fixed Maturity and Short-term Investments - Trading

The Company’s fixed maturity trading portfolio and short-term investments at March 31, 2024 and December 31, 2023 are as follows:

The fair value of the Company’s fixed maturity trading portfolio and short-term investments decreased modestly from $2.3 billion at December 31, 2023 to $2.2 billion at March 31, 2024, primarily due to a decrease in the short-term investments held by TS Hamilton Fund.

Short-term investments of $348.2 million and $428.9 million at March 31, 2024 and December 31, 2023, respectively, are held within TS Hamilton Fund. The cash and short-term investment balances within TS Hamilton Fund are not managed by the Company, nor can they be removed from TS Hamilton Fund as they support the underlying investment strategies within the three trading vehicles. The balance may fluctuate significantly from period to period as a result of movements in the underlying funds. See discussion below for further details on assets within TS Hamilton Fund.

The fair values and weighted-average credit ratings of our fixed maturity trading portfolio and short-term investments by type at March 31, 2024 and December 31, 2023 were as follows:

The average credit quality, the average yield to maturity and the expected average duration of the Company’s fixed maturities and short-term investments trading portfolio at March 31, 2024 and December 31, 2023, excluding short-term investments held by the TS Hamilton Fund, were as follows:

At March 31, 2024 and December 31, 2023, approximately 100% of the Company’s fixed maturities and short-term investments trading portfolio were rated investment grade (Baa2 or higher) by third party rating services. There were no non-investment grade securities in the fixed maturities and short-term investments trading portfolio. The average credit quality of the Company’s fixed maturities and short-term investments trading portfolio at March 31, 2024 and December 31, 2023, excluding short-term investments held by the TS Hamilton Fund, was Aa3.

The average yield to maturity on the Company’s fixed maturities and short-term investments trading portfolio increased to 4.9% at March 31, 2024 from 4.5% at December 31, 2023.

The expected average duration of the Company’s fixed maturities and short-term investments trading portfolio was 3.3 years at March 31, 2024 and December 31, 2023, respectively.

TS Hamilton Fund

Although Two Sigma has broad discretion to allocate invested assets to different opportunities, the current strategy is focused on highly diversified liquid positions in global equities, futures and foreign exchange markets. Through its investments in Two Sigma Futures Portfolio, LLC ("FTV"), Two Sigma Spectrum Portfolio, LLC ("STV") and Two Sigma Equity Spectrum Portfolio, LLC ("ESTV"), we seek to achieve absolute dollar denominated returns on a substantial capital base primarily by combining multiple hedged and leveraged systematic investment strategies with proprietary risk management and execution techniques. These systematic strategies include, but are not limited to, technical and statistically-based, fundamental-based, event-based, market condition-based and spread-based strategies as well as contributor-based and/or sentiment-based strategies and blended strategies. FTV primarily utilizes systematic strategies to gain broad macro exposure to FX, fixed income, equity and credit indices, and commodities, predominantly by trading futures, spots, forwards, options, swaps, cash bonds and exchange traded products. STV primarily utilizes systematic strategies to trade U.S.-listed equity securities and related instruments and derivatives. ESTV primarily utilizes systematic strategies to trade non-U.S.-listed equity securities and related instruments and derivatives. At March 31, 2024, the Company owns a 17.7%, 18.7% and 10.2%, interest in each of the FTV, STV and ESTV funds, respectively.

TS Hamilton Fund invests in Two Sigma Funds ("Two Sigma Funds"), which are stated at their estimated fair values, which generally represent the Company’s proportionate interest in the members’ equity of the Two Sigma Funds as reported by the respective funds based on the net asset value ("NAV") provided by the fund administrator. The Company accounts for its investment in Two Sigma Funds under the variable interest model at NAV as a practical expedient for fair value in the consolidated balance sheets.

The Company’s investments in Two Sigma Funds at March 31, 2024 and December 31, 2023 are as follows:

The increase in the total fair value of the Company’s investments in Two Sigma Funds from $851.5 million at December 31, 2023 to $953.7 million at March 31, 2024 is driven in large part by unrealized investment gains and collateral management within TS Hamilton Fund. The total net assets managed in TS Hamilton Fund represent our investment in and exposure to Two Sigma Funds’ investment strategies. However, as part of Two Sigma’s collateral management processes, any capital not required to be held within one of the specific trading vehicles is held in cash or short-term investments within TS Hamilton Fund as shown in the following table. The cash and short-term investment balances are not managed by the Company, nor can they be removed from TS Hamilton Fund as they support the underlying investment strategies within the three trading vehicles.

The following table represents the total assets and total liabilities of TS Hamilton Fund at March 31, 2024 and December 31, 2023. Creditors or beneficial interest holders of TS Hamilton Fund have no recourse to the general credit of the Company as the Company’s obligation is limited to the amount of its committed investment.

Total net assets in TS Hamilton Fund were $1.9 billion and $1.7 billion at March 31, 2024 and December 31, 2023, respectively.