The funded ratio of the 100 largest US plans fell to its lowest level in over three years.
But market volatility caused by the coronavirus threatens to erase some of the gains.
Record-low rates negate plans’ 15.66% investment return for the year.
Powered by investment gains, level increases a half-point to 86.1%
Funded rate of 100 largest DB corporate plans drops to 87.9% during month.