The spread between yields at different maturities. Its inversion is the strongest historical recession warning, with a lead time of 6–18 months.
What this spread is
The Yield Curve Spread (Yield Curve Spread) is in practice the gap between two yields. The best known is the 10-year yield minus the 2-year yield. It's positive in normal times (the longer maturity pays more), and an inversion into negative territory is the best-known recession warning in all of econometrics.
Why its inversion is a warning
Because it sums up the bond market's verdict on the future. The 2-year yield reflects the near path of rates (today's tightening), while the 10-year reflects distant growth and inflation. Their inversion says: "Rates today are higher than coming growth can bear. They will have to cut." It has preceded almost every modern US recession, with a varying lead time.
The famous timing trap
The signal is honest and the timing is treacherous: months pass between inversion and recession, maybe a year and a half, and stocks often rise in between. A return of the curve to a positive spread after a long inversion (led by short-term yields falling, meaning an urgent cut is coming) has historically been closer to the storm than the inversion itself.
Hypothetical example
A curve that has been inverted for a year starts to steepen quickly: the 2-year yield drops hard (the market is pricing an emergency cut soon). Historically this phase, not the inversion, is the one that sits next to the declared start of recessions. A reader who watches both phases neither panics early nor relaxes late.
Common mistake
Selling everything on inversion day: those who did so historically missed a meaningful rally before the storm. Inversion says "the storm is on the horizon", not "now", and the tool adjusts caution, not an exit trigger.
The timing trap in it
The signal is honest and the timing is treacherous: months pass between inversion and recession, and stocks often rise in between. A return to a positive spread after a long inversion, led by falling short-term yields, has historically been closer to the storm than the inversion itself.
Where to see it on the platform
The macro dashboard plots the spread and its history with a verdict on its phase (normal · inverted · un-inverting), as part of the recession-risk indicators.
The macro dashboard plots the spread and its history with a verdict on its phase (normal · inverted · un-inverting).
