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Trend · GLD · 1D

Does Turtle 55/20 breakout actually work on GLD? We tested it

We ran Turtle 55/20 breakout on GLD through walk-forward testing and a 100-run random-entry gauntlet. 3 of 4 unseen periods positive. Beat 79 of 100 random-entry runs.

WALK-FORWARD VERIFIED EDGESTACKER ENGINE
Return +112.5%
Win rate 61.1%
Max drawdown −14.0%
Trades 18
Sharpe 0.83
Equity curve

Equity curve over Aug 2016 to Jul 2026. Hover any point for its value. Turn on buy and hold to compare.

PeriodWindowReturnSharpeTrades
1 Aug 2018 to Jul 2020 +24.8% 1.33 5
2 Jul 2020 to Jul 2022 −6.3% −0.35 3
3 Jul 2022 to Jul 2024 +9.7% 0.61 5
4 Jul 2024 to Jul 2026 +59.4% 1.60 3
3 of 4 periods positive. Mean Sharpe 0.79. Worst period −6.3%.
Market matrix
Edge held on 1 of 28

The same rules, tested on 28 tickers. Edge held on 1. We ship it on those.

GLD SHIPPED
79/100 EDGE
Show every ticker we tested
NFLX
69/100 NONE
BA
69/100 NONE
MSTR
67/100 NONE
JPM
65/100 NONE
UBER
54/100 NONE
AVGO
53/100 NONE
MU
50/100 NONE
SOFI
50/100 NONE
AMD
48/100 NONE
XOM
48/100 NONE
COIN
44/100 NONE
SMCI
38/100 NONE
RIOT
32/100 NONE
IWM
28/100 NONE
META
27/100 NONE
MARA
27/100 NONE
AAPL
19/100 NONE
TSLA
18/100 NONE
QQQ
14/100 NONE
GOOGL
14/100 NONE
PLTR
14/100 NONE
MSFT
12/100 NONE
DIA
4/100 NONE
NVDA
3/100 NONE
AMZN
2/100 NONE
SPY
1/100 NONE
HOOD
too new TOO NEW
The rules
Entrywhen close crosses above DONCHIAN upper band of close over 55 bars
Exitwhen a signal fires (close crosses below DONCHIAN lower band of close over 20 bars)
Sizing**Position size:** no fixed stop distance to size against. This strategy exits on signal only. Size by conviction, or add a hard stop for a size-by-risk number.
Diagnosis

This strategy made money overall, turning a 112% total return on GLD from just 18 trades. The ride was fairly steady with a solid 61% win rate and a Sharpe ratio of 0.83, but it did have one painful stretch where it lost 14% over about two months in early 2026. The worst drawdown came from that single period, and since the number of trades is small, the result is somewhat concentrated in those few winning trades. The entry timing shows a real edge, beating 79% of random entries, so the breakout entry itself is a key driver of the profit rather than the exits doing all the work. The consistency figure shows the edge appeared in three out of four test periods, meaning the strategy's performance was not just a fluke from one lucky stretch.

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Backtested results, not live trading returns. Fees and slippage included. Not investment advice.