While the S&P 500 grew 0.7%, the Health Care sector (XLV) showed little movement during trading today.

As a proxy for the sector, the ETF tracked closer to the overall market today than over the past month. As trading began today, XLV was up 3.9% over the last thirty trading days, and the S&P 500 climbed 2.2%.

Infinity Pharmaceuticals (INFI) was a significant gainer in the sector, rising 11.6%. The stock closed at $16.39 with 767,602 shares moving. The stock traded in a range of $14.25 to $16.71. Shares have shown some positive movement over the last two months as the price has climbed $3.94 (31.6%) from a price of $12.45 on May 18, 2012.

CYANOTECH CORP (CYAN) was a major loser in the sector. Its price dropped 11.3% (-69 cents) to close at $5.44, as 135,870 shares moved. The stock traded between $5.27 and $6.14.

VIVUS (VVUS) rose 9.6% to close at $29, cross its 50-day moving average of $26.62 and 200-day moving average of $20.94. Mednax (MD) declined 4.7% to close at $63.60, moving below its 50-day moving average of $65.12 and 200-day moving average of $68.24.

Osiris Therapeutics (QCOR) fell 6.4% to close at $9.55, moving closer to its 50-day moving average of $9.46. Also, the stock moved closer to its 200-day moving average of $42.13. Centene (CNC) rose 2.7% to close at $37.39, getting closer to its 200-day moving average or $39.07.

MAKO Surgical (MAKO) hit a new 52-week low today, hitting $13.22 to fall below the previous low of $13.41.