This is the highest serious delinquency rate since last April.
Freddie's serious delinquency rate peaked in February 2010 at 4.20%.
These are mortgage loans that are "three monthly payments or more past due or in foreclosure".
With COVID-19, this rate will increase significantly in a few months (it takes time since these are mortgages three months or more past due).
Note: Fannie Mae will report for April soon.