Wall Street weekahead: Slashed profit expectations may set stage for gains

There could well be a silver lining in all the caution around the stock market as the earnings season approaches: Shares do way better when profit expectations have fallen, and lately, they've been falling like a rock. Earlier this month, Apple's big cut in its revenue forecast added to fears among some market watchers that a possible 2019 earnings recession - defined as at least two straight quarters of profit declines - may be on the horizon. With the bar low for companies to beat expectations, stocks could extend recent gains following the S&P 500's worst December performance since the Great Depression.