Market Close: Stocks Tumble, Walmart's Worst Day In 4 Years, Upbeat Economic News 8-20-2026

I'm Peter Shaknau, CNBC. The market's Wednesday rally is now a distant memory with rising Treasury yields, higher oil prices, and a Walmart sales shortfall, all contributing to the worst day of August for the Dow and S&P 500. The Dow tumbled 704 points to close at 52,759.The S&P 500 fell 67 points or 9/10en of a percent and the Nasdaq lost 1% or 264 points. Those rising crude prices may be one reason why treasury yields have bounced back. But there's another according to Kelsey Barrow, fixed income portfoli ...