Backtest My Biggest Loser
Enter your worst trade — the ticker, the date, the direction — and see what TradeOdds would have told you before you clicked buy. Learn from the past with 30+ years of historical data.
Backtest a TradeUnlimited backtests. Free forever.
How It Works
Enter Your Trade
Pick the ticker, the date you entered, and whether you went long or short.
See the Conditions
TradeOdds shows the exact market conditions on that day — VIX, RSI, volume, trend, and 13 more factors.
Check the Base Rate
See what happened historically after similar conditions. Would the base rate have supported your trade — or warned you away?
Why Backtest Your Worst Trades?
Every trader has a trade they wish they could take back. The stock that gapped down the day after you bought it. The breakout that reversed immediately. The position that looked perfect — until it wasn't.
Backtest My Biggest Loser doesn't just show you what went wrong — it shows you whether the historical base rate was on your side that day. If 70% of similar historical days went against your direction, the data was already there. If the base rate was 50/50, you took a coin-flip trade. Either way, you learn something about the conditions you tend to trade in.
This isn't about guilt. It's about calibration. The best traders aren't right more often — they know when the base rate is with them and size accordingly.