Does the Fair Value Gap strategy beat buy & hold on Financials ETF (XLF)? (XLF · backtested honestly)
A three-candle price imbalance — a gap between the first candle's high and the third candle's low, confirmed at the third candle's close — that price may later return to before continuing higher or filling back in.
Over this period, Fair Value Gap on Financials ETF (XLF) returned +28.2%, while simply buying and holding returned +56.8% — it lagged buy & hold by 28.6 points, with a worst drawdown of -16.2%. It traded 62 times and sat in cash about 63% of the time. It's a mechanism you test — not a recommendation.
It lagged buy & hold over this window. That's a result — a backtest you can kill for free just did its job, and re-tuning it until it looks better only adds another shot at looking good by luck. Walking away from an idea that didn't beat simply holding is the honest move, not a failure.
If you still want to try to break it further, the five stages show how — but the cheapest lesson is the one you already have.
Run it yourself
Change the parameters and the window, then re-run — no account needed.
Have your own idea for Financials ETF (XLF)? Build and honestly test your own strategy — no code, costs on, measured against buy & hold.
Build your own on Financials ETF (XLF) →Two real trades from this backtest
Shown at the modeled fills — entries at the next open, protective stops and targets at their level; costs on. A single trade is never a signal and says nothing about the next one — not the best or worst, a middling winner and a middling loser among the completed trades.
62 trades total — 39 winners, 23 losers (63% won). Below is one of each, not a scoreboard. One position is still open at the window end — its result is unrealized and is counted in the totals above at its current mark, not shown as a card below.
- Entry. A long entry fired; filled at the next open on 2026-01-05 at $54.82 — never the signal bar's own close.
- Held. 8 daily bars.
- Exit. Exited on 2026-01-15 at $54.22 (the exit rule fired (filled at the next open)).
- Result. -1.19% after costs.
The worst single trade in this whole test reached -6.95% — that is the still-open position, marked to market (unrealized).
- Entry. A long entry fired; filled at the next open on 2023-12-21 at $37.06 — never the signal bar's own close.
- Held. 3 daily bars.
- Exit. Exited on 2023-12-27 at $37.41 (the exit rule fired (filled at the next open)).
- Result. +0.84% after costs.
Trading costs + slippage (0.10%) are already deducted from every figure above. One trade is never the edge — it's the whole distribution (the win rate, the losers, the reality-check) that matters; this just makes the mechanics concrete. It describes the past; it is not a prediction.
A live badge that re-runs itself and links back here. Free to embed on any blog, newsletter or forum — it shows the honest result, beat or lagged.
<iframe src="https://stratsemble.com/embed/financials-etf-fair-value-gap-backtest" width="360" height="340" style="border:0;border-radius:12px;max-width:100%" loading="lazy" title="Does the Fair Value Gap strategy beat buy & hold on Financials ETF (XLF)?"></iframe>- • The strategy line is Fair Value Gap on Financials ETF (XLF); the dashed line is simply buying and holding XLF. Beating the dashed line is the whole point — many strategies don't.
- • Max drawdown is the worst peak-to-trough fall you'd have sat through. A higher return with a much deeper drawdown is not obviously better.
- • Every fill assumes next-open execution with costs & slippage on — no acting on prices you couldn't have known.
- • A small number of trades means a small sample. Treat a great-looking result on a handful of trades with suspicion.
This is a hypothetical backtest of a well-known mechanism on past data. It is not advice, not a prediction, and not a claim that the strategy works. I hold no funds and place no orders. The value here is the ability to test an idea honestly — see where it would have helped, and where it would have hurt — before you ever risk real money on your own broker.
How this is computed → · who's behind it · where a backtest fits
See what actually beats buy & hold — most don't, here are the rare few that do →