Corporate America has been on quite a run. Coming into 2021, S&P 500 Index companies were expected to generate less than $170 in earnings per share. As 2022 begins, it looks like that number may end up higher than the latest LPL Research estimate of $205, one of the biggest earnings upside surprises ever and a big reason why stocks did so well last year. But 2021 earnings are not yet fully in the books. We have one more quarter to go, which we preview here.