Trump says tariffs will cause “a little disturbance.” Here’s what that could mean for your 401(k).

During his Tuesday night address to Congress, President Trump acknowledged his barrage of tariffs might cause “a little disturbance.” But with the stock market tumbling this week in reaction to his import duties, workers with 401(k) plans may wonder about how much that disturbance could affect their retirement savings. The S&P 500 has lost about 3% of its value since Friday, with Wall Street tumbling on Monday and Tuesday after Mr. Trump decided to move forward with 25% tariffs on nearly all goods imported from Mexico and Canada, and an additional 10% on Chinese imports. The stock index regained some…