Flaherty & Crumrine PREFERRED & INCOME OPPORTUNITY FUND INC

For the period ended Apr 15, 2026. Filed Mar 9, 2026.

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Apr 15, 2026 · Filed Mar 9, 2026

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PFO$8.62+1.2%Stored close · as of Nov 6, 2026

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Contents

PROXY STATEMENT

PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

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Filed by Party other than the Registrant ☐

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☐ Preliminary Proxy Statement

☐ Confidential for Use of the Commission Only as permitted by Rule 14a-6(e)(2)

☒ Definitive Proxy Statement

☐ Definitive Additional Materials

☐ Soliciting Material Pursuant to Rule 14a-11c or Rule 14a-12

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