littlefish: Going forward, debt is one of the things have to consider when buying a stock. There are going to be a lot of bankruptcies.
Until everything went south, people didn't worry about a company's debt because rates were so low. Now they are even lower but things have changed.
If someone had told us in February that within 6 weeks oil prices would go negative and the country would be on lockdown, we would have given that person a wide berth, thinking they were crazy.
As a long-time investor, I always keep in mind that things come out of left field that can wreck the market.