Company: PTY
Filing Date: 2025-06-06
Form Type: 424B5
Source: 0001193125-25-137029
Chunk: 217

Company: PIMCO CORPORATE & INCOME OPPORTUNITY FUND
Filing Date: 2025-06-06
Form: 424B5
Chunk 217
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 such shares present at a meeting, if the holders of more than 50% of those shares are present or represented by proxy, or (ii) more than 50% of such shares, whichever is less. See “Investment Objective and Policies” and “Investment Restrictions” in the Statement of Additional Information for a complete list of the fundamental investment policies of the Fund. The Fund is subject to asset coverage and other guidelines which are more limiting than the investment restrictions set forth above and other restrictions set forth in the Statement of Additional Information in order to obtain and maintain a rating or ratings from Moody’s on the ARPS. See “Description of Capital Structure.” See also “Investment Objective and Policies” and “Investment Restrictions” in the Statement of Additional Information for a complete list of the fundamental investment policies of the Fund. Management of Investment Portfolio And Capital Structure To Limit Leverage Risk The Fund may take certain actions if short-term interest rates increase or market conditions otherwise change (or the Fund anticipates such an increase or change) and the Fund’s leverage begins (or is expected) to adversely affect Common Shareholders. In order to attempt to offset such a negative impact of leverage on Common Shareholders, the Fund may shorten the average maturity or duration of its investment portfolio (by investing in short-term, high quality securities or implementing certain hedging strategies). The Fund also may attempt to reduce leverage by redeeming or otherwise purchasing preferred shares (subject to any restrictions discussed under “Description of Capital Structure– Preferred Shares Redemption”) or by reducing any holdings in other instruments that create leverage. As explained above under “Principal Risks of the Fund—Leverage Risk,” the success of any such attempt to limit leverage risk depends on PIMCO’s ability to accurately predict interest rate or other market changes. Because of the difficulty of making such predictions, the Fund may not be successful in managing its interest rate exposure in the manner described above. If market conditions suggest that additional leverage would be beneficial, the Fund may issue additional preferred shares or utilize other forms of leverage, such as reverse repurchase agreements, dollar rolls/buy backs, credit default swaps and other derivative instruments. See “Investment Objective and Policies—Portfolio Contents” and “Principal Risks of the Fund—Liquidity Risk.” September 28, 2023 | Base Prospectus 83 PIMCO Corporate & Income Opportunity Fund Use of Derivatives The Fund may use derivative instruments for other purposes, including to seek to increase liquidity, provide efficient portfolio management, broaden investment opportunities (