Cardlytics (CDLX), the "purchase intelligence" software company that helps banks curate cash-back offers for customers on their websites and apps, has just released a better-than-expected first quarter. Despite strong performance in the tech sector year-to-date, Cardlytics prior to releasing Q1 results had been one of the hardest-hit tech stocks, owing to its exposure to volatile consumer spending patterns - when consumers don't click through on Cardlytics' offers, Cardlytics doesn't generate revenue. Cardlytics turned out a better result than doomsday bears had predicted, however, and shares are up more than 30% as a result: