随着贵金属价格在一轮涨势后回落，在美上市的金银矿商股下跌

Group 1 - The stock price of First Majestic Silver Corp. decreased by 10.4% [1] - The stock price of Silvercorp Metals Inc. fell by 8.8% [1] - Hecla Mining Company's stock price dropped by 10.7% [1] - Coeur Mining Inc.'s stock price declined by 16.7% [1]