In the health-care industry, the coronavirus pandemic led to big fortunes, fast. Now some of them are evaporating just as quickly.
Take Seegene Inc., a maker of Covid-19 test kits, and Alteogen Inc., a biotech with subcutaneous-injection technology. Their founders became billionaires as the shares surged last year. Fast forward a few months to the vaccine rollout, and they’ve lost their title after both stocks sank more than 41%, according to the Bloomberg Billionaires Index.