Trend-Following Backtester · Guide · backtest 한국어

equity · US

Berkshire Hathaway Inc. backtest

10 trend-following strategies were compared on the full daily history of Berkshire Hathaway Inc.. 0 beat buy-and-hold CAGR; Donchian 채널 돌파 ranks first by Sharpe, matching the main backtester. The return/drawdown alternative is EMA 크로스오버 (CAGR 14.0%, MDD -37.1%).

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 18.5%, drawdown -51.5%).

Sharpe leader (same as main): Donchian 채널 돌파 — CAGR 14.7%, MDD -43.8%, Sharpe 0.84, 82% exposure.

Return/drawdown alternative: EMA 크로스오버 — CAGR is 3.8%p lower than buy and hold, while drawdown improves by 7.7%p (CAGR 14.0%, MDD -37.1%, exposure 82%).

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=60
14.7%-43.8%0.840.34569.0x9982%
SMA 크로스오버
fast=46, slow=135
13.9%-39.2%0.840.36423.9x7172%
EMA 크로스오버
fast=41, slow=254
14.0%-37.1%0.810.38429.6x3582%
볼린저 밴드 돌파
n=68, k=1.9
10.0%-44.9%0.770.2283.5x15748%
ROC 모멘텀
n=120, threshold=-0.01
10.7%-63.5%0.680.17111.5x30575%
ADX / DI 방향성
period=40, threshold=31
4.8%-28.1%0.680.178.8x2814%
Supertrend
period=8, mult=5
9.8%-53.1%0.660.1875.1x18562%
Keltner 채널 돌파
emaPeriod=69, atrPeriod=16, mult=3.2
8.3%-50.5%0.650.1639.6x17147%
Parabolic SAR
step=0.005, maxStep=0.08
7.8%-58.8%0.550.1332.1x35958%
MACD
fast=18, slow=55, signal=19
3.0%-79.8%0.280.044.0x49348%
Buy and hold18.5%-51.5%0.870.362630.2x1100%
1x 10x 100x 1,000x 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% -13% -26% -39% -51% 1981 1987 1993 1999 2005 2011 2017 2023 Buy and holdDonchian 채널 돌파
Donchian 채널 돌파 maximum drawdown -43.8% (1999-03-12 → 2003-03-31), recovered after 3,479 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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