Does anything beat buy & hold on Stellar (XLM)?
Every setup we tested on Stellar (XLM) — ranked out-of-sample, corrected for multiple testing, and forward-tracked in public from the day this page published. The honest answer is the headline.
Beat buy-and-hold in both windows — but can't be told apart from selection luck.
Beat buy-and-hold in both the full window and out-of-sample but its OOS Sharpe 1.37 did not clear the 1.87 selection hurdle (best-of-N luck cannot be ruled out). Buy-and-hold benchmark: +13.9% CAGR over 12.4 years (+13.8% CAGR in the out-of-sample window).
Educational research from historical backtests — not investment advice. Past performance does not predict future results.
Stellar (XLM): Beat Buy-and-Hold in Both Windows, Couldn't Beat the Selection Hurdle
Crypto sets a brutal baseline: Stellar compounds at +13.9% annualized just for holding, and it charges drawdowns near -63.2% for the privilege. Against that backdrop we ran 658 indicator configurations on XLM. The best of them — Standard Error Bands on the daily timeframe — beat buy-and-hold in both the training and holdout windows, with a profitable out-of-sample trade profile across 43 trades. That is genuinely uncommon here. But 'best of 658' is exactly the phrase that should make you slow down, which is what the second paragraph is for.
When you pick the winner from 658 attempts, the result is partly signal and partly luck of the draw. Our hurdle corrects for that: with this many tries and 3.7 years of holdout data, an out-of-sample Sharpe needs to clear 1.87 before we trust it. This one landed at 1.37 — profitable, but statistically indistinguishable from the luckiest of hundreds of tries. Add that crypto structure keeps changing — new venues, new participants, shifting volatility regimes — and a pattern from the past has no obligation to repeat. Treat this as a research lead, not an edge.
Every figure above is computed from our own backtests — nothing is estimated or invented. Hypothetical results; not investment advice.
Top setups as mechanical rules
Exactly as the backtest defined them — no discretionary steps, no hidden filters.
Standard Error Bands
Mechanical rule (exactly as backtested): Buy a breakout above the upper Standard Error Band around the LSMA. Signals are evaluated at daily-bar close, the position changes on the NEXT bar, 0.08% cost per side, long/flat only — no leverage, no shorting.
Out-of-sample (last ~30% of the window, never used to pick this setup): Sharpe 1.37 · alpha +70.8% · 10 trades over 3.7 yrs.
Keltner 10 (x1.5)
Mechanical rule (exactly as backtested): VARIANT — Keltner(10) ATR ×1.5 breakout. Signals are evaluated at daily-bar close, the position changes on the NEXT bar, 0.08% cost per side, long/flat only — no leverage, no shorting.
Out-of-sample (last ~30% of the window, never used to pick this setup): Sharpe 1.26 · alpha +59.4% · 17 trades over 3.7 yrs.
Keltner 20 Break
Mechanical rule (exactly as backtested): Variant — 20-bar Keltner upper-band breakout; long above the band. Signals are evaluated at daily-bar close, the position changes on the NEXT bar, 0.08% cost per side, long/flat only — no leverage, no shorting.
Out-of-sample (last ~30% of the window, never used to pick this setup): Sharpe 1.24 · alpha +57.0% · 10 trades over 3.7 yrs.
Since publication — including if it loses
The forward record is just getting started — the gap between the two is the honest score. Marked to market nightly from real prices, rules frozen at publication, as of 2026-07-02. Currently FLAT.
We tested 658 setups (indicator × parameters × timeframe) on Stellar (XLM). Only setups with ≥30 trades qualify (442 did). Setups are ranked by out-of-sample Sharpe — the last ~30% of history, which standard-parameter rules never saw during selection. Because picking the best of 658 tries mines even the holdout, the VALIDATED verdict additionally requires the top setup’s OOS Sharpe to clear a selection hurdle of 1.87 (√(2 ln N)/√T) AND positive alpha in both windows. Of the eligible setups, 53.8% had positive out-of-sample alpha (median OOS Sharpe 0.53) — the table below is truncated, but this summary covers all of them. Full recipe: methodology · the engine’s contract lives in the repo as STRATEGY_METHODOLOGY.md.
Top 20 of 442 eligible setups
Ranked by out-of-sample Sharpe. Full + out-of-sample columns, costs included. Hypothetical.
| # | Setup | TF | Total ret | Sharpe | Max DD | Win | Trades | α vs B&H | OOS Sharpe | OOS α | OOS trades |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Standard Error Bands | Daily | >+999% | 0.78 | -63.2% | 51.2% | 43 | +17.7% | 1.37 | +70.8% | 10 |
| 2 | Keltner 10 (x1.5) | Daily | >+999% | 0.78 | -59.7% | 59.5% | 84 | +20.1% | 1.26 | +59.4% | 17 |
| 3 | Keltner 20 Break | Daily | >+999% | 0.77 | -60.2% | 47.7% | 65 | +19.6% | 1.24 | +57.0% | 10 |
| 4 | Piercing Line | Daily | >+999% | 0.91 | -48.1% | 37.5% | 64 | +21.8% | 1.2 | +48.1% | 14 |
| 5 | QQE MOD | Daily | >+999% | 0.87 | -54.8% | 42.0% | 119 | +24.5% | 1.11 | +51.2% | 38 |
| 6 | Bollinger 30 (x2.0) Break | Daily | +933.8% | 0.61 | -75.8% | 55.1% | 78 | +6.7% | 1.11 | +45.0% | 16 |
| 7 | Bollinger 50 (x2.5) Break | Daily | +502.7% | 0.53 | -47.6% | 52.9% | 34 | +1.6% | 1.1 | +42.9% | 10 |
| 8 | Chande Forecast Osc. | Daily | >+999% | 0.95 | -74.9% | 40.9% | 323 | +43.8% | 1.08 | +53.0% | 93 |
| 9 | Choppiness Index | Daily | >+999% | 0.64 | -55.4% | 44.0% | 50 | +8.9% | 1.08 | +43.2% | 12 |
| 10 | Chaikin Volatility | Daily | >+999% | 0.93 | -61.5% | 44.4% | 117 | +36.2% | 1.07 | +47.7% | 35 |
| 11 | Bollinger 10 (x1.5) Break | Daily | >+999% | 0.83 | -74.1% | 54.2% | 177 | +24.4% | 1.07 | +40.3% | 52 |
| 12 | Impulse MACD | Daily | >+999% | 1.01 | -62.2% | 45.7% | 105 | +42.6% | 1.06 | +43.5% | 26 |
| 13 | Waddah Attar Explosion | Daily | >+999% | 0.87 | -66.8% | 51.5% | 165 | +28.7% | 1.04 | +42.8% | 48 |
| 14 | Acceleration Bands | Daily | >+999% | 0.89 | -75.3% | 47.6% | 103 | +30.8% | 1.01 | +38.7% | 29 |
| 15 | Super Smoother (Ehlers) | Daily | >+999% | 1.11 | -58.8% | 37.7% | 162 | +57.2% | 0.99 | +40.7% | 50 |
| 16 | Relative Volume Spike | Daily | >+999% | 0.76 | -58.5% | 41.9% | 43 | +20.3% | 0.99 | +38.6% | 14 |
| 17 | Jurik MA (approx.) | Daily | >+999% | 1.11 | -72.5% | 40.8% | 262 | +57.8% | 0.97 | +39.7% | 79 |
| 18 | Center of Gravity | Daily | >+999% | 0.82 | -82.3% | 43.1% | 378 | +29.6% | 0.96 | +39.4% | 110 |
| 19 | TEMA 30 Trend | Daily | >+999% | 0.95 | -56.0% | 41.6% | 209 | +36.2% | 0.96 | +38.8% | 68 |
| 20 | Williams %R (7) | Daily | >+999% | 0.85 | -85.8% | 37.3% | 300 | +31.8% | 0.95 | +39.3% | 91 |
Hypothetical backtests with 0.08%/side costs. Not investment advice — see the full disclaimer.
These are historical backtests of mechanical rules. They are educational research, not investment advice, not a recommendation, and not tailored to you. Educational information only — not investment advice. Hypothetical backtested results; past performance does not guarantee future results. Trading involves risk of loss.