Daily backtested rule-based strategies. Research since 2012 by Oddmund Grotte & Håkan Samuelsson, both longtime former prop traders
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Does extreme Nasdaq underperformance predict a rebound?
We tested QQQ after it underperformed SPY by more than 3 percentage points over 5 trading days.
The idea is simple: when tech gets hit much harder than the broad market, does mean reversion follow?
We backtested it across multiple holding periods.
The results were interesting 👇
An interesting statistic about the US stock market:
The S&P 500 is still up approximately 12% in 2026.
Yet, among 5,454 US stocks tracked by Tradmap:
- Only 36% are above their 200-day moving averages.
- Just 25% are above their 50-day moving averages.