Yep, that happens with thinly traded stocks.  It's happened to me too.  It is essential to remember now regarding metals stocks.  Volumes, in general, have been dropping for three years.  I've never seen it so bad.  Even with discovery, it seems almost any mining company's trading volume will spike, fall below where it was, and continue lower.

I think a recession will cure this, and it's what the Fed is trying to engineer.  For now, the Fed is not having success, but October is sometimes a witching month in this regard.  Stand by.