Trend-Following Backtester · Guide · backtest 한국어

equity · US

Photronics, Inc. backtest

10 trend-following strategies were compared on the full daily history of Photronics, Inc.. 1 beat buy-and-hold CAGR; Donchian 채널 돌파 ranks first by Sharpe, matching the main backtester.

Data 1987-03-10 ~ 2026-07-31daily bars 9,924 (39.4 years)Costs 0.5%Venue XNASMonthly snapshot 2026-07-31

Results by strategy

1 of 10 beat buy and hold (CAGR 6.0%, drawdown -99.2%).

Sharpe leader (same as main): Donchian 채널 돌파 — CAGR 7.3%, MDD -80.3%, Sharpe 0.39, 74% exposure.

No strategy retained at least 75% of buy-and-hold CAGR while reducing drawdown by both 20% relatively and 5 percentage points absolutely.

The alternative must retain 75% of buy-and-hold CAGR, improve drawdown by at least 20% and 5 percentage points, and stay below 95% exposure; the ranking weights return retention 60% and drawdown improvement 40%.

Strategy · parametersCAGRMDDSharpeCalmarTotalTradesExposure
Donchian 채널 돌파
entryN=18, exitN=62
7.3%-80.3%0.390.0916.2x13074%
ADX / DI 방향성
period=33, threshold=9
5.5%-82.8%0.330.078.2x46246%
SMA 크로스오버
fast=57, slow=163
5.2%-88.8%0.330.067.4x7855%
MACD
fast=13, slow=41, signal=31
3.5%-94.1%0.290.043.8x43950%
EMA 크로스오버
fast=31, slow=104
3.0%-87.5%0.280.033.2x10452%
볼린저 밴드 돌파
n=40, k=1.8
3.8%-79.8%0.270.054.3x23233%
Supertrend
period=25, mult=4.9
2.7%-86.4%0.270.032.8x12651%
ROC 모멘텀
n=10, threshold=-0.14
-1.8%-99.3%0.25-0.020.5x37193%
Parabolic SAR
step=0.015, maxStep=0.3
-0.4%-93.0%0.20-0.000.9x64650%
Keltner 채널 돌파
emaPeriod=61, atrPeriod=25, mult=1.1
-1.0%-92.3%0.16-0.010.7x32044%
Buy and hold6.0%-99.2%0.410.069.8x1100%
1x 10x 1988 1993 1998 2003 2008 2013 2018 2023 Donchian 채널 돌파Buy and hold
Donchian 채널 돌파: Solid strategy line versus dashed buy-and-hold line. Log scale.
0% -25% -50% -74% -99% 1988 1993 1998 2003 2008 2013 2018 2023 Buy and holdDonchian 채널 돌파
Donchian 채널 돌파 maximum drawdown -80.3% (1995-08-17 → 2001-10-01), recovered after 5,037 days.

Rules of the top strategy

A new high means a trend starting; a new low means it’s over (turtle-trading style).

Method and caveats

Past performance does not guarantee future returns. Parameters were carried forward from the latest full optimization and replayed on this monthly dataset. 0.5% trading costs are included; taxes, slippage and rejected orders are not.
Re-optimize the same period and setupAll asset reports

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