The Health Care sector (XLV) showed little change during trading today while the S&P 500 rose 0.2%.

As a proxy for the sector, the ETF tracked closer to the overall market today than over the past month. Entering today's trading, XLV was up 2.6% over the last thirty trading days. The S&P 500, in comparison, went up 5.5%.

Heska Corporation (HSKA) was a major loser in the sector, falling 15.8% (-$1.59) to close at $8.50 with 113,903 shares moving. The stock traded in a range of $8.50 to $9.51.

Metropolitan Health Networks (MDF) was a significant gainer in the sector, rising 12.8%. The stock closed at $9 with 598,305 shares moving. The stock traded in a range of $8 to $9.09. Share price has been increasing, and is up $1.14 (14.5%) from a price of $7.86 on August 3, 2012. Similarly, AVEO Pharmaceuticals (AVEO) gained today, increasing 58 cents (+7.2%) to close at $8.66.

CareFusion Corporation (CFN) rose 7% to close at $26.29, crossing its 50-day moving average of $24.77. Meanwhile, St Jude Medical (STJ) dropped 1.2% to close at $38.43, moving below its 200-day moving average or $39.01.

Aegerion Pharmaceuticals (AEGR) rose 6.5% to close at $14.42, approaching its 50-day moving average of $14.73. It has also moved closer to its 200-day moving average of $14.81. Pacira Pharmaceuticals (NHC) fell 4.1% to close at $15.54, moving closer to its 50-day moving average of $15.24. Also, the stock moved closer to its 200-day moving average of $44.56.

Gentiva Health Services (GTIV) hit a new 52-week high today, reaching $9.72 to top the previous high of $9.54.