This chart shows three times during the past three decades in which the yield curve inverts. An inversion is when the rate of a shorter term debt security is higher than the rate of a longer term debt security. This is identified on this chart in 2000, 2006, 2019.
Treasury Debt Securities: Bill; less than one year to maturity at issue. Note; greater than one year but less than 10 years to maturity at issue. Bond; greater than 10 years to maturity at issue.
In 2000 the yield of the 3 month US Treasury Bill was about 6.3% while the yields of both the 5 year Note and 30 year Bond were around 5.8%. In 2006 the yield of the 3 month US Treasury Bill was about 5.1% while the yields of both the 5 year Note and 30 year Bond were around 4.9%. In 2019 the yield of the 3 month US Treasury Bill was about 2.3% while the yield of the 2 year Note was around 1.8%.
when yield inverted, recession DID happen!