Company: PTY
Filing Date: 2025-06-06
Form Type: 424B5
Source: 0001193125-25-137029
Chunk: 371

Company: PIMCO CORPORATE & INCOME OPPORTUNITY FUND
Filing Date: 2025-06-06
Form: 424B5
Chunk 371
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 to the value of the Fund’s holdings of U.S. government securities. Thus, the anticipated spread between the price of the futures contract and the hedged security may be distorted due to differences in the nature of the markets. The spread also may

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be distorted by differences in initial and variation margin requirements, the liquidity of such markets and the participation of speculators in such markets. Additionally, the price of Index Futures may not correlate perfectly with movement in the relevant index due to certain market distortions. First, all participants in the futures market are subject to margin deposit and maintenance requirements. Rather than meeting additional margin deposit requirements, investors may close futures contracts through offsetting transactions which could distort the normal relationship between the index and futures markets. Second, the deposit requirements in the futures market are less onerous than margin requirements in the securities market, and as a result, the futures market may attract more speculators than does the securities market. Increased participation by speculators in the futures market may also cause temporary price distortions. In addition, trading hours for foreign stock Index Futures may not correspond perfectly to hours of trading on the foreign exchange to which a particular foreign stock Index Future relates. This may result in a disparity between the price of Index Futures and the value of the relevant index due to the lack of continuous arbitrage between the Index Futures price and the value of the underlying index. Futures exchanges may limit the amount of fluctuation permitted in certain futures contract prices during a single trading day. The daily limit establishes the maximum amount that the price of a futures contract may vary either up or down from the previous day’s settlement price at the end of the current trading session. Once the daily limit has been reached in a futures contract subject to the limit, no more trades may be made on that day at a price beyond that limit. The daily limit governs only price movements during a particular trading day and therefore does not limit potential losses because the limit may work to prevent the liquidation of unfavorable positions. For example, futures prices have occasionally moved to the daily limit for several consecutive trading days with little or no trading, thereby preventing prompt liquidation of positions and subjecting some holders of futures contracts to substantial losses. There can be no assurance that a liquid market will exist at a time when the Fund seeks to close out a futures or a futures option position, and that the Fund would remain obligated to meet margin requirements until the position is closed. In addition, many of the contracts discussed above are relatively new instruments without a significant trading history. As a result