NEW YORK ( TheStreet) -- Silver Standard Resources (Nasdaq: SSRI) is trading at unusually high volume Monday with 3.8 million shares changing hands. It is currently at four times its average daily volume and trading down $2.74 (-9.3%) at $26.85 as of 3:56 p.m. ET. Silver Standard has a market cap of $2.5 billion and is part of the basic materials sector and metals & mining industry. Shares are up 4.9% year to date as of the close of trading on Friday. Silver Standard Resources Inc. engages in the exploration, development, and production of mineral resource properties in Argentina, Australia, Canada, Chile, Mexico, Peru, and the United States. The company primarily explores for silver, gold, tin, zinc, lead, and copper deposits. The company has a P/E ratio of 5.8, above the average metals & mining industry P/E ratio of 5.7 and below the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Silver Standard as a hold. The company's strengths can be seen in multiple areas, such as its robust revenue growth, largely solid financial position with reasonable debt levels by most measures and notable return on equity. However, as a counter to these strengths, we find that the growth in the company's earnings per share has not been good. You can view the full Silver Standard Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center. Interested in other stocks that are falling on unusually high volume? Get free SMS text alerts sent to you when the action happens by texting HVDOWN to 95370 or select from multiple alert options.