PSQ

ProShares Short QQQ (PSQ) is not an operating company but an exchange-traded fund. It uses derivatives (like swaps and futures) to deliver the inverse (-1x) of the daily return of the Nasdaq-100 index, so it is designed to go up in value when large-cap tech-heavy Nasdaq stocks fall, and go down when they rise. Investors typically use it to hedge tech exposure or make short-term bearish bets rather than as a long-term holding.