I believe that there was a quarterly repositioning of funds' holdings in both the GDX and GDXJ ETF's. Huge MOC (market-on-close) transactions were made in large blocks of shares, to help some funds decrease some of their holdings, and others to increase their holdings of particular companies within the indexes. AUMN makes up (on a dollar basis) roughly .33% of GDXJ (or about $7.5 million) of the total $ amount of the index itself. I saw that it traded all the way up to $3.11, and today back down into the $2.60's. Not to overstate the obvious, but when little retail/institutional palyers are present in the marketplace, these algorithms can "probe" for stops on both the downside, or upside (not lately I'm afraid). I just hope that the company can actually back up their promises to become cash-flow positive when they say they will. Until then, we're at the whims of the puppet masters.