The early thinking about grocery stocks was that the big surge in demand at the start of the COVID lockdown was just a flash in the pan. However, as earnings and guidance is emerging from companies in the space (like General Mills), it is becoming apparent that demand for groceries because of a heightened preference for home cooking seems likely to stick around for a while.
FINSUM: We agree with the fundamental thesis here. Until we cure COVID, people are going to stay worried about public spaces, including restaurants. The trick to picking stocks is to understand where each company is getting its revenue. For instance, General Mills does a lot of sales through grocery stores so its stock is rising, but Molson Coors does a large share of its sales through bars and restaurants, so its stock is falling.