- The article reports the performance of major US stock indices and lists the top declining stocks on August 21.
- Seabridge Gold fell 9.35% with a trading volume of 92,784,000 dollars, while Hut 8 Mining dropped 8.79% with a trading volume of 790,000,000 dollars.
- Alibaba decreased by 8.57% with a trading volume of 3,930,000,000 dollars, bringing its year-to-date decline to 17.8%.
- Major US stock indices recorded gains on August 21, with the Nasdaq and S&P 500 both rising 0.43% and the Dow Jones increasing by 0.98%.
- Southern Copper and Freeport-McMoRan experienced significant gains of 8.69% and 7.64% respectively among mega-cap companies.
- Alibaba dropped 8.57% with a trading volume of 3.93 billion dollars, while Marvell Technology declined by 5.57%.