Stock Market on Aug. 21, 2026: Dow, S&P 500 and Nasdaq rebound, but finish week with a loss as rising bond yields rattle stocks - MarketWatch
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- Dow Jones surged roughly 500 points on Friday, August 21, 2026, per CNBC, even as the index posted back-to-back weekly losses amid rising bond yields that pressured stocks.
- Stocks and bonds finished the week steady, capping a tumultuous week where the Dow, S&P 500, and Nasdaq all rebounded intraday but still closed the week in the red, according to the New York Times and MarketWatch.
Why it matters: Back-to-back weekly losses signal persistent selling pressure despite Friday's rebound, and rising bond yields remain the named culprit — meaning Treasury yields are the single metric to watch for determining whether next week extends the slide or breaks the pattern.
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