When technology stocks drop sharply, the headlines treat it as a verdict on the whole market. But the size of a selloff in one sector doesn't tell you what's happening to the market as a whole. Very often, on days that look frightening on the surface, the money didn't leave the market at all. It rotated. This article explains what sector rotation is and why a concentrated tech selloff with money flowing into other sectors looks very different from the broad weakness that begi
