ProShares Ultra Silver (AMEX:AGQ) plunged 31.1% in today's trading, closing at $120.91.
The Financial Services stock traded 16,060,888 shares, 4.1x its average daily volume of 3,894,417.9 shares.
ProShares Ultra Silver has a market capitalization of $1.9B. The stock has gained 0.0% year-to-date.