Dollar's Late-Day Run Is Worth NotingStock Market News for Monday, Aug. 25, 2025: Stocks Head Lower After Powell-Inspired RallyLast Updated:7 hours agoFor much of this morning, the dollar did nothing, but later in the day it shot straight up, a move that puts it on track for its best day this month.The U.S. Dollar Index, which tracks the general international value of the dollar, is up 0.84% this afternoon. It might erase all its losses from Friday, when it fell 0.92%. If it closes at current levels, it'll mark its biggest one-day gain since July 30.It's not immediately clear what's propping up the dollar. But given the stock and bond markets aren't showing any major upward momentum, the dollar's breakthrough is notable.