I did a post on the US treasury yield curve back in May 2016 (read here). As quoted in that post (with reference to a newspaper article): A sign that a correction is coming is that the US treasury yield curve is close to as flat as what you see before previous crises.

US Treasury yield curve flattens to lowest level since financial crash (read here) The 10-year Treasury yield has hit the 3% level — here’s what that means (read here) 2-year Treasury yield posts largest weekly climb in three weeks (read here)

“A flattening yield curve is traditionally a harbinger of a recession to come, suggesting little inflationary expectations because of slowing economic activity. Why buy 10-year when you get nearly as much return from shorter dates,” Blain told CNBC via email. (Extract from 2nd article above)

The yield spread between the 2-year and the 10-year rate stood at