Wall Street is flashing red flags as traders pile into disaster options on the Invesco QQQ ETF. After a 43 surge since April, deep out-of-the-money puts are seeing massive demand — contracts that only pay if tech stocks plunge hard. October QQQ $515 puts are in focus, lining up with the ETF’s 200-day moving average and recent declines. With volatility cheap, crash insurance has never been easier.