NEW YORK ( TheStreet) -- Abiomed (Nasdaq: ABMD) is trading at unusually high volume Tuesday with 1.8 million shares changing hands. It is currently at 4.1 times its average daily volume and trading down $1.89 (-7.8%) at $22.40 as of 3:35 p.m. ET. Abiomed has a market cap of $898.4 million and is part of the health care sector and health services industry. Shares are up 31.5% year to date as of the close of trading on Monday. Abiomed, Inc. provides medical devices in circulatory support and continuum of care in heart recovery to acute heart failure patients. The company's products are designed to enable the heart to rest, heal, and recover by enhancing blood flow and/or performing the pumping function of the heart. The company has a P/E ratio of 576, equal to the average health services industry P/E ratio and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Abiomed 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 impressive record of earnings per share growth. However, as a counter to these strengths, we find that the company's return on equity has been disappointing. You can view the full Abiomed Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center.