美国银矿股股价下跌，赫克拉矿业(HL.N)跌9%，科尔黛伦矿业(CDE.N)跌8.6%，Silvercorp Metals(SVM.A)跌8.7%，En...

Core Viewpoint - The stock prices of U.S. silver mining companies have experienced significant declines, indicating a bearish trend in the sector [1] Group 1: Company Performance - Hecla Mining (HL.N) saw a decline of 9% in its stock price [1] - Coeur Mining (CDE.N) experienced an 8.6% drop in its stock price [1] - Silvercorp Metals (SVM.A) fell by 8.7% [1] - Endeavour Silver (EXK.N) decreased by 8.1% [1]