C9 · IS A RECESSION UNDERWAY, BY THE REALIZED CONVENTION
Sahm Rule recession indicator
0.10
CALMROBUSTz -0.33DRS 95monthlyas of 2026-05-01
Where it sits: near the middle of its full record.
The full history
1959
high 9.50 · low -0.33 · now 0.10 · 9 recessions shaded 2026
How it is read
What it measures
is a recession underway, by the realized convention
Where it sits
near the middle of its full record — at the 54th percentile of its full record.
z vs. its window
-0.33 (strain side: up). 797 observations in the window.
State rule
z < 1 CALM · 1 ≤ z < 2 WATCH · z ≥ 2 EXTREME, measured only toward the declared strain side.
Confidence
ROBUST — a primary official series, mechanically reported.
Reliability (DRS)
DRS 95 — Not a forecast: a present-tense reading of a realized threshold (3-month average unemployment 0.50pp above its 12-month low). Built by Claudia Sahm explicitly as a non-predictive trigger; 0.50 is the declared line, shown on the tile.
Where it comes from
FRED ↗Every number on this site is reproducible from this primary source.
What it read at past stress points
Lehman, Sep 2008
1.27
◆ WATCH
Q4-2018 selloff
0.07
· CALM
Curve inversion, Aug 2019
0.07
· CALM
COVID crash, Mar 2020
0.30
· CALM
Questions it helps answer
Work — Is the labor market holding — and how broadly?