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Donchian 55/20 Breakout

The Turtle traders' system 2: buy strength, cut losers quickly, let winners run.

Breakout Data as of 2026-09-18 close
1 · Rules

▶ Entry

Close above the highest high of the prior 55 sessions.

Screener form: breakout_55d — 55-day breakout.

■ Exit

Close below the lowest low of the prior 20 sessions.

Signals are read on the close; the backtest fills at the next session's open.

2 · Stocks triggering the entry today (42)
Stock Sector Close Chg Score RSI (14)ADX (14)Relative volume (RVOL)
NEOGENNeogen Chemicals Limited Chemicals ₹2,488 +3.87% 94 69.81 28.61 1.94×
KAMDHENUKamdhenu Limited Metal ₹41.05 +3.92% 94 72.39 21.57 1.20×
CONFIPETConfidence Petroleum India Limited — ₹91.95 +5.98% 94 66.40 34.17 1.27×
AUROPHARMAAurobindo Pharma Limited Pharma ₹1,734 +2.60% 94 63.54 21.65 1.64×
GCSLGretex Corporate Services Limited Financial Services ₹618.55 +4.07% 93 69.27 21.37 0.90×
TBZTribhovandas Bhimji Zaveri Limited Consumer Durables ₹603.55 +4.99% 90 82.35 52.04 0.34×
SANSERASansera Engineering Limited Auto ₹4,260 +6.03% 90 65.40 29.59 1.71×
MAXESTATESMax Estates Limited Infrastructure ₹594.00 +2.84% 90 76.25 39.03 0.66×
BODALCHEMBodal Chemicals Limited Chemicals ₹191.23 +5.00% 90 82.37 62.48 0.33×
STLNETWORKSTL Networks Limited — ₹42.95 +4.99% 89 90.32 46.39 0.29×
NRLNupur Recyclers Limited — ₹143.67 +4.77% 89 76.70 49.18 2.30×
BHAGYANGRBhagyanagar India Limited Energy ₹446.70 +0.04% 89 66.32 16.09 2.00×
ACEAction Construction Equipment Limited — ₹1,229 +1.96% 89 70.21 24.13 2.98×
VALIANTORGValiant Organics Limited Chemicals ₹426.65 +4.46% 88 81.74 33.83 2.71×
GMMPFAUDLRGMM Pfaudler Limited — ₹1,467 +7.60% 88 88.56 65.97 2.73×
FILATEXFilatex India Limited — ₹93.83 +3.85% 88 68.33 26.66 1.33×
SPLPETROSupreme Petrochem Limited Oil & Gas ₹865.70 +7.27% 87 71.95 30.20 3.70×
PVRINOXPVR INOX Limited Media ₹1,325 +4.09% 87 65.58 33.01 1.40×
PFOCUSPrime Focus Limited Media ₹344.35 +2.81% 87 74.01 34.50 3.75×
ACMESOLARAcme Solar Holdings Limited Infrastructure ₹435.25 +5.82% 87 66.98 26.90 6.06×
TALBROAUTOTalbros Automotive Components Limited Auto ₹476.70 +9.54% 86 74.86 21.29 8.45×
WSTCSTPAPRWest Coast Paper Mills Limited — ₹768.30 +7.24% 85 77.84 58.45 1.97×
NRBBEARINGNRB Bearing Limited — ₹525.50 +11.29% 85 64.09 28.02 26.09×
KOPRANKopran Limited Pharma ₹277.60 +3.35% 85 81.48 40.11 1.15×
SAMBHVSambhv Steel Tubes Limited Metal ₹147.57 +14.32% 83 72.07 37.03 16.58×
YATHARTHYatharth Hospital & Trauma Care Services Limited Healthcare ₹1,140 +6.26% 81 80.25 46.29 10.32×
SHAREINDIAShare India Securities Limited Financial Services ₹228.15 +4.45% 81 83.95 40.48 3.55×
LENSKARTLenskart Solutions Limited Consumer Durables ₹707.20 +4.01% 81 73.53 55.65 2.14×
APARINDSApar Industries Limited — ₹18,858 +5.94% 81 65.32 32.22 2.37×
MACPOWERMacpower CNC Machines Limited — ₹2,104 +9.52% 80 69.51 36.39 5.01×
JUBLPHARMAJubilant Pharmova Limited Pharma ₹1,065 +5.27% 80 75.15 27.07 0.89×
CASTROLINDCastrol India Limited Chemicals ₹197.14 +2.83% 80 75.15 30.72 5.30×
SHILPAMEDShilpa Medicare Limited Pharma ₹1,021 +6.55% 79 70.41 46.30 1.41×
AVALONAvalon Technologies Limited — ₹2,538 +13.80% 79 67.88 33.28 9.25×
VENUSPIPESVenus Pipes & Tubes Limited Metal ₹2,283 +7.09% 78 81.10 32.60 4.71×
SYRMASyrma SGS Technology Limited — ₹1,729 +6.87% 78 70.37 20.27 5.44×
TIMEXTimex Group Consumer Durables ₹714.20 +16.87% 77 68.99 27.37 18.33×
SANGINITASanginita Chemicals Limited Chemicals ₹71.06 +2.00% 75 73.82 35.77 0.06×
IIFLCAPSIIFL Capital Services Limited Financial Services ₹345.10 +2.42% 75 64.71 28.56 4.90×
ACSTECHACS Tech IT ₹66.15 +5.00% 75 81.00 45.89 1.45×
ALGOQUANTAlgoquant Fintech Limited Financial Services ₹72.27 +3.05% 71 75.84 32.58 3.02×
GRAUWEILGrauer & Weil Chemicals ₹86.62 +9.52% 62 74.65 17.41 30.47×

👀 Setting up (138)

Close to the entry: pct_from_52wh >= -5 AND close > sma50
Stock Sector Close Chg Score RSI (14)ADX (14)Relative volume (RVOL)
AEGISVOPAKAegis Vopak Terminals Limited — ₹314.95 +1.37% 96 69.73 26.60 1.62×
NEOGENNeogen Chemicals Limited Chemicals ₹2,488 +3.87% 94 69.81 28.61 1.94×
KAMDHENUKamdhenu Limited Metal ₹41.05 +3.92% 94 72.39 21.57 1.20×
CONFIPETConfidence Petroleum India Limited — ₹91.95 +5.98% 94 66.40 34.17 1.27×
AUROPHARMAAurobindo Pharma Limited Pharma ₹1,734 +2.60% 94 63.54 21.65 1.64×
GCSLGretex Corporate Services Limited Financial Services ₹618.55 +4.07% 93 69.27 21.37 0.90×
TBZTribhovandas Bhimji Zaveri Limited Consumer Durables ₹603.55 +4.99% 90 82.35 52.04 0.34×
SWANDEFSwan Defence and Heavy Industries Limited — ₹2,746 +0.94% 90 68.96 15.48 1.15×
SANSERASansera Engineering Limited Auto ₹4,260 +6.03% 90 65.40 29.59 1.71×
MAXESTATESMax Estates Limited Infrastructure ₹594.00 +2.84% 90 76.25 39.03 0.66×
BODALCHEMBodal Chemicals Limited Chemicals ₹191.23 +5.00% 90 82.37 62.48 0.33×
STLNETWORKSTL Networks Limited — ₹42.95 +4.99% 89 90.32 46.39 0.29×
NRLNupur Recyclers Limited — ₹143.67 +4.77% 89 76.70 49.18 2.30×
BHAGYANGRBhagyanagar India Limited Energy ₹446.70 +0.04% 89 66.32 16.09 2.00×
ACEAction Construction Equipment Limited — ₹1,229 +1.96% 89 70.21 24.13 2.98×
VALIANTORGValiant Organics Limited Chemicals ₹426.65 +4.46% 88 81.74 33.83 2.71×
SHREEJISPGShreeji Shipping Global Limited Infrastructure ₹708.05 +2.47% 88 64.19 26.47 0.71×
GMMPFAUDLRGMM Pfaudler Limited — ₹1,467 +7.60% 88 88.56 65.97 2.73×
FILATEXFilatex India Limited — ₹93.83 +3.85% 88 68.33 26.66 1.33×
PVRINOXPVR INOX Limited Media ₹1,325 +4.09% 87 65.58 33.01 1.40×
NOCILNOCIL Limited Chemicals ₹194.56 +4.40% 87 68.22 34.99 1.17×
ADANIPORTSAdani Ports and Special Economic Zone Limited — ₹1,824 +4.93% 87 64.29 18.94 1.77×
ACMESOLARAcme Solar Holdings Limited Infrastructure ₹435.25 +5.82% 87 66.98 26.90 6.06×
TALBROAUTOTalbros Automotive Components Limited Auto ₹476.70 +9.54% 86 74.86 21.29 8.45×
METROPOLISMetropolis Healthcare Limited Healthcare ₹597.45 +1.90% 86 58.79 13.43 0.86×
LGEINDIALG Electronics India Limited Consumer Durables ₹1,697 +2.66% 86 61.38 28.08 2.86×
GOCLCORPGOCL Corporation Limited Chemicals ₹446.10 -2.20% 86 61.59 25.33 1.16×
WSTCSTPAPRWest Coast Paper Mills Limited — ₹768.30 +7.24% 85 77.84 58.45 1.97×
VISHNUVishnu Chemicals Limited Chemicals ₹722.15 +1.84% 85 65.05 44.87 0.48×
PAYTMOne 97 Communications Limited — ₹1,850 +4.93% 85 67.28 42.40 1.03×
3 · Backtest — Nifty 50 stocks since 2014
1,141
Trades
43.5%
Win rate
+4.38%
Average trade
2.2
Profit factor
52.9d
Avg holding
+4.4%
Median CAGR / stock
Buy & hold +15.8%
-40.1%
Median max drawdown
Buy & hold -53.7%
41.5%
Time in market
4.1%
Stocks where it beat B&H

🛡️ Robustness — Entry lookback

The published rule uses 55. If the edge vanishes one step either side, it was probably fitted to history.

Entry lookbackTradesWinAvg tradePFMedian CAGR
40129843.0%+4.25%2.16+5.4%
55114143.5%+4.38%2.2+4.4%
70103643.9%+4.57%2.26+4.5%

Robust The average trade is positive at every tested setting. Profitable average trade in 69.2% of years with 5+ trades.

📅 By year (walk-forward view)

YearTradesWinAvg trade
20147552.0%+7.60%
20157236.1%+7.29%
20168139.5%+2.34%
20178248.8%+3.53%
20189044.4%+5.20%
20199331.2%-1.67%
20207240.3%+2.39%
202112255.7%+15.19%
20229733.0%-0.78%
20238251.2%+2.19%
202410856.5%+10.81%
20259033.3%-0.96%
20267736.4%-1.35%
Most recent trades in the test
StockEntryExitReturn
KOTAKBANK2026-08-272026-09-18 (open)-0.98%
BAJAJ-AUTO2026-07-232026-09-16+3.66%
ETERNAL2026-07-022026-09-16+11.92%
GRASIM2026-05-082026-09-16+7.53%
JSWSTEEL2026-08-062026-09-16-6.65%
TITAN2026-07-222026-09-16+3.94%
ICICIBANK2026-07-062026-09-10-2.04%
TECHM2026-06-022026-09-10-3.46%
BAJAJFINSV2026-07-062026-09-08+2.63%
ASIANPAINT2026-05-112026-09-03-2.09%
EICHERMOT2026-06-162026-09-03+0.60%
NESTLEIND2026-07-312026-09-03-7.05%
SBIN2026-08-072026-09-03-4.93%
SHRIRAMFIN2026-07-032026-09-02-3.29%
ADANIENT2026-04-242026-09-01+25.71%
4 · Risk

Low win rate by design — most breakouts fail small, a few run far.

Test assumptions: long only, one position per stock, next-open fills, 0.2% round-trip cost, split-adjusted prices without dividends, current Nifty 50 members (survivorship bias). Past results do not predict future returns.

5 · Test it on any stock

Open the AI Backtester with these rules pre-filled, pick a stock and a date range, and add your own stop-loss or target.

Buy when close makes a new 55-day high, sell when close falls below the 20-day low.
🧪 Backtest on any stock Open the entry in the screener
🔗 Other breakout strategies
Momentum Breakout20-Day High Breakout50-Day High BreakoutVolatility Contraction BreakoutVolume Surge Breakout

⚠️ 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.

⚠️ AI Disclaimer: This website is entirely managed by AI Agents and may contain errors or inaccuracies. Always verify information from multiple sources before making any financial or investment decisions.