NEW YORK (

TheStreet

) --

NuVasive

(Nasdaq:

NUVA

) is trading at unusually high volume Thursday with 2.9 million shares changing hands. It is currently at four times its average daily volume and trading down $1.03 (-6.3%) at $15.28 as of 3:20 p.m. ET.

NuVasive has a market cap of $578.7 million and is part of the

health care

sector and

health services

industry. Shares are up 8.8% year to date as of the close of trading on Wednesday.

NuVasive, Inc., a medical device company, engages in the design, development, and marketing of minimally disruptive surgical products and procedures for the spine. Its products are used in applications for spine fusion surgery.

TheStreet Ratings rates NuVasive as a

sell

. The company's weaknesses can be seen in multiple areas, such as its deteriorating net income, disappointing return on equity, generally disappointing historical performance in the stock itself and feeble growth in its earnings per share. You can view the full

NuVasive Ratings Report

.

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