Dow Drops 500 Points as 10-Year Treasury Yield Hits 5%

The Dow fell 500 points September 15, 2026, per MarketWatch, as U.S. stocks extended losses. The 10-year Treasury yield — the rate Washington pays to borrow for 10 years — hit 5%, per MarketWatch. Higher yields lift borrowing costs and weigh on stock values. I see financial conditions tightening as the Fed opened its September 15-16 meeting.