Not every business that has significant success during the coronavirus pandemic makes sense as a potential stock to add to your long-term portfolio. Some strong companies will get stronger during this crisis, while some others will look strong simply because they sell things that people need right now.
In some cases, the added attention will lead to a longer-term spike in business. In others, the company's weaknesses will once again be exposed once the COVID-19 pandemic has eased.
Domino's (NYSE: DPZ) and Papa John's (NASDAQ: PZZA) have both seen sales spike due to the coronavirus. That makes sense because the two companies entered the pandemic with a delivery/pickup model (though some Papa John's locations do offer limited seating).