Amazon.com Inc's AMZN.O shares lost 2.2% in premarket trading as the company signaled its cloud growth would slow further, overshadowing its better-than-expected quarterly results. Amazon down after signaling slower AWS growth Pinterest, Snap fall on downbeat forecasts Intel gains on upbeat view on margins March PCE index due at 8:30 a.m. Snapchat-owner Snap IncSNAP.N tumbled 17.8% as it warned next quarter results could miss Wall Street targets, while Pinterest IncPINS.N dropped 14% after the image-sharing platform forecast second-quarter revenue growth below estimates as advertising spending declines.