NEW YORK ( TheStreet) -- Pharmerica Corporation (NYSE: PMC) is trading at unusually high volume Tuesday with 2.1 million shares changing hands. It is currently at four times its average daily volume and trading down $2.15 (-15.3%) at $11.90 as of 3:50 p.m. ET. Pharmerica has a market cap of $419.3 million and is part of the services sector and retail industry. Shares are up 22.5% year to date as of the close of trading on Monday. PharMerica Corporation operates as an institutional pharmacy services company in the United States. It offers services to healthcare facilities and provides management pharmacy services to hospitals. The company has a P/E ratio of 23.8, above the average retail industry P/E ratio of 21 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Pharmerica as a hold. The company's strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures and increase in net income. However, as a counter to these strengths, we also find weaknesses including disappointing return on equity, weak operating cash flow and poor profit margins. You can view the full Pharmerica 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.