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The inverted yield curve: the recession signal, explained
The yield curve plots interest rates on government bonds of different maturities — from three months to thirty years. Normally it slopes upward: lenders want a higher rate to tie their money up for longer. When short-term rates rise above long-term rates, the curve is inverted, and markets start talking about recession.
How to read it: the 2s10s spread
The most-watched measure is the 2s10s spread: the 10-year yield minus the 2-year yield. Positive means a normal curve; near zero is flat; negative is inverted. Short rates are driven by the central bank's current policy. Long rates reflect what markets expect policy to average over the next decade — plus a term premium.
Why inversion predicts recessions
An inverted curve means the market expects the central bank to cut rates in the future. Central banks usually cut because the economy is weakening. So an inversion is the bond market's forecast that today's tight policy will slow the economy enough to force cuts. Historically, US curve inversions have preceded nearly every recession of the past half-century, usually by one to two years.
But it's a signal, not a law
The US curve inverted in 2022 and stayed inverted into 2024 — the longest inversion on record — yet no recession had arrived by the time it re-steepened. Strong household finances, pandemic savings and unusual labour markets muddied the signal. The lesson: an inverted curve raises the odds of a downturn; it does not set the date.
Why banks hate an inverted curve
Banks borrow short (deposits, market funding) and lend long (mortgages, business loans). When short rates exceed long rates, their margin is squeezed: funding costs rise with the policy rate while the yield on long-term assets lags. And if the recession it predicts arrives, credit losses follow. A double hit.
What prudent bankers do when the curve inverts
- Tighten credit standards — the loans written at the peak become the losses of the downturn.
- Build capital and liquidity while profits are still coming in.
- Shorten the duration of the bond book before rates are cut.
- Keep dry powder: weak competitors will be for sale in the recession.
Frequently asked questions
What does an inverted yield curve mean?
It means short-term interest rates are higher than long-term rates, usually because markets expect the central bank to cut rates in future as the economy weakens.
How long after an inversion does a recession start?
Historically, US recessions have typically begun somewhere between about 6 and 24 months after the curve first inverted — but the lag varies and the 2022–24 inversion was not followed by a recession by the time it ended.
Why is an inverted yield curve bad for banks?
Banks fund themselves short and lend long, so an inverted curve squeezes their net interest margin — and the recession it often predicts raises credit losses.