The Dow Jones Industrial Average rose 427.97 points, or 0.81%, to 53,187.18 during the 12 p.m. hour in New York trading on August 21, rebounding from a 703.84-point plunge in the previous session. Bargain-hunting pushed the index near its intraday high. The S&P 500 gained 32.81 points, or 0.43%, to 7,673.97, while the Nasdaq Composite added 108.87 points, or 0.42%, to 26,176.04. The Philadelphia Semiconductor Index, or SOX (semiconductor-stock benchmark), moved against the broader market, falling 64.23 points, or 0.54%, to 11,735.79. Nikkei 225 December futures on the Osaka Exchange traded weakly at 65,910 yen, down 180 yen from the previous Osaka session close. U.S. Treasury yields increased, with the 10-year yield up 0.04 percentage point to 4.74%, the 2-year yield up 0.04 point to 4.23% and the 30-year yield up 0.03 point to 5.28%, widening the Japan-U.S. interest-rate differential to 1.85%. The dollar-yen rate was nearly flat at 159.02 yen per dollar, while the euro-dollar rate was $1.1679 and the euro-yen rate was 185.73 yen. The dollar index edged down to 98.82. WTI crude oil futures rose $0.49, or 0.56%, to $87.32 a barrel, and gold futures surged $107, or 2.34%, to $4,678.40, close to the intraday high of $4,690.40. Within the Dow, 20 of 30 components advanced and 10 declined; in the S&P 500, 327 stocks rose and 172 fell.