According to @StockMarketNerd, 20%+ upside surges and 20%+ declines routinely revert within days, highlighting a short-term mean reversion trading edge after extreme moves (source: @StockMarketNerd on X, Nov 6, 2025). Based on @StockMarketNerd’s observation, traders can prioritize fade or pullback setups instead of chasing momentum immediately after a 20%+ spike or crash, aiming to capture the multi-day reversal rather than a prolonged trend (source: @StockMarketNerd on X, Nov 6, 2025). The practical takeaway from @StockMarketNerd’s note is to structure short-duration trades around the post-move extremes and target the anticipated multi-day retracement cited by the source, keeping holding periods to days rather than weeks (source: @StockMarketNerd on X, Nov 6, 2025).