Why Dollar Tree, Guess?, and Micron Technology Slumped Today

Wall Street had a down day on Thursday, with the trade-sensitive industrial side of the market seeing the largest declines on news that the U.S. and Canada had imposed a set of matching tariffs on each other. The Dowlost more than 200 points, but declines were somewhat less extensive on a percentage basis for other parts of the market.

Crude oil prices also moved lower, and the general sense among investors was one of uncertainty about how these initial disputes would evolve over time. Moreover, some bad news from key sectors of the economy weighed on individual stocks. Dollar Tree (NASDAQ: DLTR), Guess? (NYSE: GES), and Micron Technology (NASDAQ: MU)were among the worst performers on the day. Below, we'll look more closely at these stocks to tell you why they did so poorly.