Trend-Following Backtester · Guide · backtest 한국어

equity · US

West Pharmaceutical Services, Inc. backtest

10 trend-following strategies were compared on the full daily history of West Pharmaceutical Services, Inc.. 0 beat buy-and-hold CAGR; Donchian 채널 돌파 ranks first by Sharpe, matching the main backtester.

Data 1980-03-17 ~ 2026-07-31daily bars 11,688 (46.4 years)Costs 0.5%Venue XNYSMonthly snapshot 2026-07-31

Results by strategy

0 of 10 beat buy and hold (CAGR 14.0%, drawdown -59.6%).

Sharpe leader (same as main): Donchian 채널 돌파 — CAGR 10.7%, MDD -55.6%, Sharpe 0.54, 76% 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=22, exitN=59
10.7%-55.6%0.540.19112.5x13376%
EMA 크로스오버
fast=58, slow=94
9.6%-60.9%0.530.1671.3x6967%
SMA 크로스오버
fast=34, slow=208
9.0%-59.7%0.500.1553.3x6766%
볼린저 밴드 돌파
n=70, k=0.7
7.9%-43.9%0.480.1834.2x27155%
ROC 모멘텀
n=102, threshold=-0.03
8.6%-73.7%0.480.1245.3x29170%
ADX / DI 방향성
period=39, threshold=7
7.9%-51.1%0.470.1533.4x43961%
Supertrend
period=24, mult=5
7.9%-57.6%0.470.1433.5x18757%
Keltner 채널 돌파
emaPeriod=77, atrPeriod=16, mult=1.8
7.0%-44.0%0.450.1622.7x24555%
MACD
fast=24, slow=77, signal=23
5.8%-72.5%0.380.0813.9x37251%
Parabolic SAR
step=0.005, maxStep=0.36
4.2%-69.3%0.300.066.8x36855%
Buy and hold14.0%-59.6%0.590.23434.2x1100%
1x 10x 100x 1981 1987 1993 1999 2005 2011 2017 2023 Donchian 채널 돌파Buy and hold
Donchian 채널 돌파: Solid strategy line versus dashed buy-and-hold line. Log scale.
0% -15% -30% -45% -60% 1981 1987 1993 1999 2005 2011 2017 2023 Buy and holdDonchian 채널 돌파
Donchian 채널 돌파 maximum drawdown -55.6% (2021-12-30 → 2025-07-21), prior peak not yet recovered.

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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