Trend-Following Backtester · Guide · backtest 한국어

equity · US

DexCom, Inc. backtest

10 trend-following strategies were compared on the full daily history of DexCom, Inc.. 2 beat buy-and-hold CAGR; SMA 크로스오버 ranks first by Sharpe, matching the main backtester. The return/drawdown alternative is Supertrend (CAGR 17.0%, MDD -62.8%).

Data 2005-04-14 ~ 2026-07-31daily bars 5,358 (21.3 years)Costs 0.5%Venue XNASMonthly snapshot 2026-07-31

Results by strategy

2 of 10 beat buy and hold (CAGR 17.0%, drawdown -94.6%).

Sharpe leader (same as main): SMA 크로스오버 — CAGR 18.0%, MDD -68.0%, Sharpe 0.64, 60% exposure.

Return/drawdown alternative: Supertrend — CAGR is 1.0%p higher than buy and hold, while drawdown improves by 26.6%p (CAGR 17.0%, MDD -62.8%, exposure 60%).

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
SMA 크로스오버
fast=36, slow=154
18.0%-68.0%0.640.2633.8x3360%
Supertrend
period=9, mult=2.6
17.0%-62.8%0.610.2728.4x16760%
EMA 크로스오버
fast=56, slow=190
16.2%-61.0%0.600.2624.3x2358%
Donchian 채널 돌파
entryN=86, exitN=59
15.1%-56.8%0.600.2720.2x3349%
ROC 모멘텀
n=107, threshold=0.13
13.1%-52.2%0.540.2513.7x15846%
볼린저 밴드 돌파
n=71, k=2.7
10.0%-48.0%0.540.217.5x3626%
MACD
fast=13, slow=28, signal=16
10.9%-69.9%0.460.169.0x31450%
Parabolic SAR
step=0.015, maxStep=0.18
8.6%-63.1%0.410.145.8x37854%
Keltner 채널 돌파
emaPeriod=59, atrPeriod=13, mult=2.9
5.5%-47.4%0.340.123.1x8439%
ADX / DI 방향성
period=35, threshold=19
2.5%-56.3%0.220.041.7x6619%
Buy and hold17.0%-94.6%0.560.1828.3x1100%
1x 10x 2006 2009 2012 2015 2018 2021 2024 SMA 크로스오버Buy and hold
SMA 크로스오버: Solid strategy line versus dashed buy-and-hold line. Log scale.
0% -24% -47% -71% -95% 2006 2009 2012 2015 2018 2021 2024 Buy and holdSMA 크로스오버
SMA 크로스오버 maximum drawdown -68.0% (2021-11-17 → 2026-06-30), prior peak not yet recovered.

Rules of the top strategy

When the short average rises above the long average, it reads that as an uptrend starting.

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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