The Test Bench › gate
Does Recession Models (Sahm / claims / leading) actually work?
DEADNo edge left once tested on a fair footing.
The claim
A macro / intermarket reading that times the market — Macro / recession trackers
What we did
Tested against Buy & hold SPY, same window (2012+), 2012-2026, both directions, vs +0.33 null floor.
The result
Result: 0.07 dSharpe (vs buy-hold)
Sahm rule dSharpe +0.07 (IS -0.35 -> OOS +0.35 = an OOS mirage); claims/leading all noise
Verdict
Recession indicators (Sahm rule, jobless-claims trend, OECD leading) are slow by design and noise as equity-timing gates. The Sahm rule nominally cleared the floor but on a negative in-sample = a data-mining artifact the discipline flags, not an edge.
What the test did and did not do
- tested out of sample
- point-in-time data
- checked for look-ahead
- net of real costs
Almost nobody publishing a backtest says which of these they did. We list the ones we failed as well as the ones we passed.
Tested 2026-06-23. The same treatment, applied to every other system, is on the test bench.
Written with AI assistance from our own test database. The numbers are computed, not composed.
General market commentary for education, not personalised investment advice. Backtested results are hypothetical. Trading carries a real risk of loss.