Tuesday's Health Winners & Losers

Updated from 2:02 p.m. EDT

Some companies' weak earnings were balanced by others' strong quarterly results, leaving health stocks largely flat on Tuesday.

Medical device manufacturer DJO's(DJO) shares slid 13.1% after the company reported disappointing first-quarter earnings. The company reported first-quarter revenue of $114.9 million, a 39% increase from the $82.6 million in revenue it reported in the same quarter last year. However, quarterly net income was $4 million, or 17 cents a share, compared to $6 million, or 26 cents a share, in the first quarter of 2006. The Thomson Financial consensus target was 31 cents a share on revenue of $114 million for the period. Shares fell $5.24 to $34.75 on Monday.

Biotechnology company Momenta Pharmaceuticals(MNTA) saw its shares sink 7.2%, following a disappointing earnings report. The company had a net loss of $17 million, or 48 cents a share, compared with a loss of $11.3 million, or 37 cents a share, in the year-over-year quarter. The Thomson Financial consensus targeted a loss of $15.7 million, or 43 cents a share. Shares dropped 99 cents to $12.77.

However, not everyone suffered poor earnings.

Biopharmaceutical company Allos Therapeutics (ALTH) reported that it met analysts' expectations with a net first-quarter loss of $8.4 million, or 14 cents a share, compared to a loss of $7.1 million, or 13 cents a share, in the year-ago quarter. Shares were up 18 cents, or 3.1%, to $6.03.