Home / Strategies / Charles River Laboratories (CRL)
Stock · strategy report

Does anything beat buy & hold on Charles River Laboratories (CRL)?

Every setup we tested on Charles River Laboratories (CRL) — 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.

NOTHING BEAT BUY-AND-HOLD

No setup beat simply holding once tested honestly. We say so plainly.

Its best setup only beat buy-and-hold in one window — a regime artifact, not a strategy. Buy-and-hold benchmark: +8.5% CAGR over 25.9 years (+5.4% CAGR in the out-of-sample window).

Educational research from historical backtests — not investment advice. Past performance does not predict future results.

CRL: we tested 756 setups and none beat simply holding Charles River Laboratories

For Charles River Laboratories (CRL), we ran 756 indicator configurations against a plain buy-and-hold benchmark, and none of them earned the right to replace it. Individual stocks carry idiosyncratic risk — earnings surprises, guidance changes, sector rotation — that indicators built on price history cannot see coming. The best-looking setup, Fisher Center-of-Gravity on the daily timeframe, ranked at the top in-sample but delivered an out-of-sample Sharpe of 1.02, short of our hurdle of 1.3. Buy-and-hold returned +8.5% annualized over the test period; the top strategies mostly captured pieces of that same move while adding trading friction.

How to read this honestly: when you test 756 setups and keep the best one, something will always look impressive by chance alone. That is why we require the survivor to clear 1.3 out of sample. Fisher Center-of-Gravity managed 1.02, with out-of-sample alpha of +16.2% across 7.8 years and 683 trades, and only 15.1% of everything we tested beat the benchmark on unseen data — roughly what luck would produce. None of this predicts anything: the regime that generated these numbers can shift, and single stocks shift faster than most. Treat this page as a record of what failed under honest testing, not a forecast.

Every figure above is computed from our own backtests — nothing is estimated or invented. Hypothetical results; not investment advice.

Failure exhibit

The least-bad setups — shown with their failure numbers

Nothing here earned a verdict — these are the best of a losing field, published so you can see exactly how "best" still failed.

#1 · Cycle · Daily

Fisher Center-of-Gravity

Mechanical rule (exactly as backtested): Ehlers' Fisher-transformed Center of Gravity oscillator — long while turning up. 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.

+407.5%
Total return
0.42
Sharpe
-51.9%
Max DD
49.5%
Win rate
683
Trades
-2.0%
vs B&H

Out-of-sample (last ~30% of the window, never used to pick this setup): Sharpe 1.02 · alpha +16.2% · 199 trades over 7.8 yrs.

#2 · Pattern · Daily

Hammer

Mechanical rule (exactly as backtested): Hammer reversal candle (long lower wick) — enter long, hold a short horizon. 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.

+479.7%
Total return
0.67
Sharpe
-32.4%
Max DD
64.1%
Win rate
145
Trades
-1.5%
vs B&H

Out-of-sample (last ~30% of the window, never used to pick this setup): Sharpe 1.0 · alpha +6.4% · 49 trades over 7.8 yrs.

#3 · Pattern · Daily

Morning Star

Mechanical rule (exactly as backtested): Three-bar morning-star reversal — enter long, hold a short horizon. 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.

>+999%
Total return
0.74
Sharpe
-21.2%
Max DD
55.9%
Win rate
236
Trades
+2.0%
vs B&H

Out-of-sample (last ~30% of the window, never used to pick this setup): Sharpe 0.84 · alpha +6.3% · 61 trades over 7.8 yrs.

Forward test

Since publication — including if it loses

0.0%
the published setup, since 2026-07-02 (0 market days)
0.0%
buy & hold, same window

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.

How this verdict was computed (mode: out-of-sample)

We tested 756 setups (indicator × parameters × timeframe) on Charles River Laboratories (CRL). Only setups with ≥30 trades qualify (647 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 756 tries mines even the holdout, the VALIDATED verdict additionally requires the top setup’s OOS Sharpe to clear a selection hurdle of 1.3 (√(2 ln N)/√T) AND positive alpha in both windows. Of the eligible setups, 15.1% had positive out-of-sample alpha (median OOS Sharpe 0.11) — 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.

Ranked table

Top 20 of 647 eligible setups

Ranked by out-of-sample Sharpe. Full + out-of-sample columns, costs included. Hypothetical.

#SetupTFTotal retSharpeMax DDWinTradesα vs B&HOOS SharpeOOS αOOS trades
1Fisher Center-of-GravityDaily+407.5%0.42-51.9%49.5%683-2.0%1.02+16.2%199
2HammerDaily+479.7%0.67-32.4%64.1%145-1.5%1.0+6.4%49
3Morning StarDaily>+999%0.74-21.2%55.9%236+2.0%0.84+6.3%61
4Stochastic Momentum IndexDaily+354.7%0.39-72.2%69.1%110-2.5%0.82+12.3%37
5Volatility Regime (VIX-style)Daily+306.0%0.41-54.3%44.6%222-2.9%0.8+8.6%56
6Chande-Kroll Stop (fast)Daily+949.8%0.46-52.4%41.8%428+1.0%0.77+17.0%125
7Deviation-Scaled MADaily+695.7%0.45-55.0%45.0%687-0.1%0.76+14.4%194
8Pring's Special KDaily+51.3%0.18-69.2%43.9%303-6.9%0.74+7.5%62
9Historical Volatility RegimeDaily+140.8%0.29-56.4%43.1%232-5.0%0.69+6.4%53
10Ehlers Cyber CycleDaily+71.1%0.21-85.9%47.7%688-6.4%0.67+9.5%200
11Gann HiLo ActivatorDaily+302.5%0.34-65.3%40.0%495-3.0%0.64+9.0%148
12SSL ChannelDaily+391.5%0.37-51.6%41.3%276-2.1%0.63+9.4%77
13Volume Flow IndicatorDaily+527.2%0.41-59.3%42.0%50-1.1%0.61+8.6%15
14UT Bot (ATR Trailing)Daily+106.8%0.24-75.9%40.5%425-5.6%0.59+8.3%122
15CCIDaily+702.3%0.47-76.2%77.2%127-0.1%0.58+6.6%37
16Chande Forecast Osc.Daily+239.2%0.32-77.0%47.2%738-3.7%0.56+6.7%222
17FRAMA 200 TrendDaily+86.0%0.22-71.4%40.8%512-6.1%0.56+6.5%162
18Hull MA TrendDaily+7.6%0.13-79.5%40.1%357-8.2%0.54+6.5%98
19Holt Double-Exp MADaily+79.6%0.21-68.4%43.0%588-6.2%0.53+5.1%166
20Pascal's Weighted MADaily+442.9%0.43-41.5%46.5%342-1.7%0.53+4.3%97

Hypothetical backtests with 0.08%/side costs. Not investment advice — see the full disclaimer.

Read this before acting on anything

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.

Keep digging