Trend-Following Backtester · Guide · backtest 한국어

equity · US

ATI Inc. backtest

10 trend-following strategies were compared on the full daily history of ATI Inc.. 7 beat buy-and-hold CAGR; Donchian 채널 돌파 ranks first by Sharpe, matching the main backtester. The return/drawdown alternative is 볼린저 밴드 돌파 (CAGR 12.4%, MDD -49.6%).

Data 1999-11-29 ~ 2026-07-31daily bars 6,708 (26.7 years)Costs 0.5%Venue XNYSMonthly snapshot 2026-07-31

Results by strategy

7 of 10 beat buy and hold (CAGR 7.8%, drawdown -95.6%).

Sharpe leader (same as main): Donchian 채널 돌파 — CAGR 21.5%, MDD -71.7%, Sharpe 0.68, 74% exposure.

Return/drawdown alternative: 볼린저 밴드 돌파 — CAGR is 13.7%p higher than buy and hold, while drawdown improves by 23.9%p (CAGR 12.4%, MDD -49.6%, exposure 28%).

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=35, exitN=98
21.5%-71.7%0.680.30181.5x3774%
볼린저 밴드 돌파
n=35, k=2.2
12.4%-49.6%0.590.2522.4x12028%
SMA 크로스오버
fast=26, slow=170
15.7%-58.4%0.590.2748.8x5157%
EMA 크로스오버
fast=57, slow=140
14.7%-56.2%0.570.2639.0x3357%
ROC 모멘텀
n=161, threshold=-0.02
13.9%-69.4%0.540.2032.1x17159%
Supertrend
period=10, mult=3.6
9.2%-83.9%0.430.1110.4x14951%
Keltner 채널 돌파
emaPeriod=50, atrPeriod=22, mult=2.4
7.9%-61.0%0.420.137.6x11432%
MACD
fast=13, slow=20, signal=13
7.0%-90.5%0.370.086.0x43051%
ADX / DI 방향성
period=21, threshold=15
5.4%-76.0%0.330.074.1x29634%
Parabolic SAR
step=0.015, maxStep=0.12
3.8%-90.4%0.280.042.7x47253%
Buy and hold7.8%-95.6%0.410.087.4x1100%
0.1 1x 10x 100x 2000 2004 2008 2012 2016 2020 2024 Donchian 채널 돌파Buy and hold
Donchian 채널 돌파: Solid strategy line versus dashed buy-and-hold line. Log scale.
0% -24% -48% -72% -96% 2000 2004 2008 2012 2016 2020 2024 Buy and holdDonchian 채널 돌파
Donchian 채널 돌파 maximum drawdown -71.7% (2011-04-27 → 2020-10-28), recovered after 3,983 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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