JPMorgan breaks down how COVID-19 nearly destroyed one of the market's safest trades — and lays out 3 lessons to help investors tackle future crises

· A relatively obscure but cushioned part of the bond market nearly collapsed in March amid the coronavirus-induced crisis. 
· JPMorgan strategists recently detailed the breakdown in so-called basis trading that spurred a rush to the exits among hedge funds.
· They explained how the Fed intervened to prevent a wider...