WHAT TO DO NOW: The market and especially leading stocks are still very choppy, with news-driven moves becoming the norm of late, and today we’re seeing another wave of selling in the names. Big picture, we’re still optimistic, but we’re taking things on a stock-by-stock basis at this point. Today we’re going to sell Shift4 (FOUR), which was hit hard yesterday after saying it received no worthwhile buyout bids and, without any bounce, we’re going to cut bait here, leaving us with 32% in cash. Details below.