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📚 Strategy Library
Sixteen classic technical strategies in four families. Each one follows the same path: Rules → Stocks triggering today → Backtest → Risk → Robustness. The backtests run every rule on the current Nifty 50 members since 2014, with next-day-open fills and 0.2% round-trip costs — and every strategy is re-run with its key parameter moved either side, so a rule that only works at one magic number shows it.
Data as of 2026-09-18 closeBacktest universe: 50 Nifty 50 stocks
📈 Trend following
20/50 EMA Crossover
▶ 20-day EMA crosses above the 50-day EMA.
■ 20-day EMA crosses below the 50-day EMA.
1,322 trades
avg +7.19%
win 39.0%
robust
10 triggering today
50/200 Golden Cross
▶ 50-day SMA crosses above the 200-day SMA.
■ 50-day SMA crosses below the 200-day SMA.
408 trades
avg +19.14%
win 50.5%
robust
3 triggering today
ADX Trend Rider
▶ ADX(14) above 25 with +DI above −DI and close above the 50-day EMA.
■ +DI crosses below −DI, or close falls below the 50-day EMA.
2,089 trades
avg +1.34%
win 34.6%
robust
339 triggering today
SuperTrend (10,3)
▶ SuperTrend (10,3) flips to an uptrend.
■ SuperTrend flips to a downtrend.
1,888 trades
avg +3.62%
win 42.7%
robust
26 triggering today
🚀 Momentum
RSI Momentum (crosses 60)
▶ RSI(14) crosses above 60 while close is above the 50-day EMA.
■ RSI(14) falls below 40.
1,662 trades
avg +4.79%
win 42.0%
robust
95 triggering today
Rate-of-Change Momentum
▶ 12-day ROC crosses above +5% while close is above the 200-day SMA.
■ 12-day ROC turns negative.
3,064 trades
avg +0.74%
win 39.6%
robust
223 triggering today
Relative-Strength Leaders
▶ Outperforming the Nifty 50 by 10+ points over 3 months, above the 50-day SMA.
■ Close below the 50-day SMA.
935 trades
avg +2.98%
win 33.2%
robust
305 triggering today
🔁 Mean reversion
RSI(14) Oversold Bounce
▶ RSI(14) crosses back above 30 while above the 200-day SMA.
■ RSI(14) rises above 55, or a 10-session time stop.
224 trades
avg -0.20%
win 53.6%
7 triggering today
Bollinger Band Reversion
▶ Close below the lower Bollinger Band (20,2) while above the 200-day SMA.
■ Close back above the middle band (20-day SMA).
1,271 trades
avg +0.55%
win 67.7%
robust
9 triggering today
Stretched Below 20 EMA
▶ Close 7%+ below the 20-day EMA while above the 200-day SMA.
■ Close back above the 20-day EMA.
223 trades
avg +1.55%
win 71.3%
robust
13 triggering today
💥 Breakout
Donchian 55/20 Breakout
▶ Close above the highest high of the prior 55 sessions.
■ Close below the lowest low of the prior 20 sessions.
1,141 trades
avg +4.38%
win 43.5%
robust
42 triggering today
Momentum Breakout
▶ Close at a 20-day high on 1.5× average volume, RSI above 55.
■ Close below the 20-day EMA.
2,138 trades
avg +0.83%
win 37.5%
robust
44 triggering today
20-Day High Breakout
▶ Close above the prior 20-session high.
■ Close below the prior 10-session low.
2,327 trades
avg +1.92%
win 41.2%
robust
64 triggering today
50-Day High Breakout
▶ Close above the prior 50-session high while above the 200-day SMA.
■ Close below the 50-day SMA.
1,278 trades
avg +3.43%
win 40.3%
robust
38 triggering today
Volatility Contraction Breakout
▶ Bollinger width in the bottom 20% of its 6-month range, then a close above the upper band.
■ Close below the 20-day SMA.
1,744 trades
avg +0.95%
win 38.9%
robust
32 triggering today
Volume Surge Breakout
▶ Up day on 2× average volume closing at a 20-day high.
■ Close below the 20-day low, or a 20-session time stop.
1,596 trades
avg +1.29%
win 54.8%
robust
38 triggering today
⚖️ How to read these backtests
- Win rate is not the goal. Trend-following and breakout systems often win only 35-45% of trades and still make money because the winners are several times the losers. Look at the average trade and the profit factor together.
- Robustness: each strategy page shows results at three settings of its key parameter and year by year. A rule whose edge disappears when the parameter moves slightly, or that only worked in one year, is likely curve-fitted.
- Known biases: today's Nifty 50 members are tested back in time (survivorship bias — no stock that was dropped for failing is included); dividends are not added; prices are split-adjusted. Trades spanning a >40% one-day move are discarded as probable price artefacts.
- Test it yourself: every strategy has a “Backtest on any stock” button that opens the AI Backtester with the rules pre-filled.
⚠️ Educational technical analysis computed automatically from end-of-day NSE prices — not investment advice. Flash Finance is not SEBI-registered. Indicators describe what price has done; they do not predict what it will do. Verify levels on a live chart and manage risk before acting.
