NEW YORK ( TheStreet) -- Natus Medical (Nasdaq: BABY) is trading at unusually high volume Monday with 1.4 million shares changing hands. It is currently at 4.3 times its average daily volume and trading down 78 cents (-9%) at $7.85 as of four p.m. ET. Natus Medical has a market cap of $262 million and is part of the health care sector and health services industry. Shares are down 36.9% year to date as of the close of trading on Friday. Natus Medical Incorporated develops, manufactures, and markets neurodiagnostic and newborn care products worldwide. The company has a P/E ratio of 18.2, above the average health services industry P/E ratio of 17.5 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Natus Medical 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 reasonable valuation levels. However, as a counter to these strengths, we also find weaknesses including a generally disappointing performance in the stock itself and unimpressive growth in net income. You can view the full Natus Medical 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.