9/11 Put Options Claims
Debunked claims that unusually high volumes of put options on airline stocks before September 11 suggested advance knowledge of the attacks.
The 9/11 put options claims emerged shortly after the September 11 attacks, alleging that abnormally high volumes of put options were purchased on United Airlines and American Airlines stock in the days preceding the terrorist attacks. Put options allow investors to profit from declining stock prices, leading to speculation that the trading reflected advance knowledge of the attacks.
Initial reports highlighted unusual trading activity in the options market during the week of September 3-7, 2001, particularly for the two airlines whose planes were hijacked. Some financial analysts noted that the volume of put options relative to call options was significantly higher than typical market patterns.
The Securities and Exchange Commission conducted an immediate investigation into the trading patterns, examining records from multiple exchanges and brokerage firms. The investigation found that the trading had legitimate explanations unrelated to terrorist activity. Much of the United Airlines put option volume traced to a specific newsletter recommendation, while American Airlines options were purchased by institutional investors managing existing stock positions.
Academic studies by financial researchers at multiple universities subsequently analyzed the broader market data and found no evidence of informed trading ahead of the September 11 attacks. Studies examining options activity for hundreds of companies found that patterns for the affected airlines fell within normal statistical ranges when viewed comprehensively.
The FBI’s investigation reached similar conclusions, finding no links between the options traders and al-Qaeda or other terrorist organizations. The 9/11 Commission Report addressed these claims directly, stating that extensive investigation found no evidence that anyone with advance knowledge of the attacks traded on that information.
The persistence of these claims reflects broader tendencies to seek patterns that might explain catastrophic events, particularly when those events seem to benefit certain parties financially.