Backtest shorting any leveraged or inverse ETF the moment it prints a new all-time low.
Pick ATL on Close (short when the close prints a new ATL) or ATL on Touch (short when the intraday low touches a new ATL).
Both strategies exit on a profit target (% drop from entry) or stop loss (% rise from entry) — whichever hits first.
See full historical returns, equity curve, trade log, and drawdown stats.