The Health Care sector (XLV) showed little movement while the S&P 500 gained 0.5% during trading today.

The ETF, as a proxy for the sector, tracked farther from the overall market today than over the past week. As trading began today, XLV was up 1.3% over the last seven trading days while the S&P 500 climbed 0.8%.

Osiris Therapeutics (OSIR) was a major gainer in the sector, rising 13.8% (+$1.11) to close at $9.18 with 1.8 million shares moving. The stock traded in a range of $8.21 to $9.40.

Concord Medical Services Hldg (CCM) was one of the sector's big losers, as its price dropped 9.1% (-26 cents) to close at $2.60. 109,781 shares of the stock moved. The stock traded in a range of $2.60 to $2.93. The stock has been sliding in the last two months, down $1.25 (-32.5%) from a price of $3.85 on April 18, 2012.

Zimmer Holdings (ZMH) rose 4.2% to close at $63.20, cross its 50-day moving average of $61.16 and 200-day moving average of $59.50. LCA-Vision (LCAV) declined 8.3% to close at $5.61, moving below its 50-day moving average of $5.84 and 200-day moving average of $5.65.

MAKO Surgical (MAKO) rose 5.7% to close at $25.26, approaching its 50-day moving average of $27.30. It has also moved closer to its 200-day moving average of $33.46. Forest Labs (GSK) fell 1.3% to close at $34.45, moving closer to its 50-day moving average of $34.21. Also, the stock moved closer to its 200-day moving average of $44.93.