The Health Care sector (XLV) showed little movement while the S&P 500 gained 0.8% during trading today.

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 down 3.1% over the last thirty trading days while the S&P 500 climbed -5.8%.

Cleveland BioLabs (CBLI) was a major loser in the sector, falling 13% (-27 cents) to close at $1.80 with 1.3 million shares moving. The stock traded between $1.64 and $2.17.

Increasing 8.3% (+$1.59) to close at $20.85, Bio-Reference Laboratories (BRLI) was a major gainer in the sector. Today, 577,333 shares traded hands. The stock traded in a range of $19.09 to $21.18. The stock is down over the last two months, having fallen $3.29 (-13.6%) from a price of $24.14 on April 5, 2012.

Sagent Pharmaceuticals (SGNT) rose 7.2% to close at $17.49, cross its 50-day moving average of $16.87 and 200-day moving average of $19.75. AVEO Pharmaceuticals (AVEO) declined 4.9% to close at $12.25, moving below its 50-day moving average of $11.90 and 200-day moving average of $13.36.

Masimo Corporation (MASI) rose 5.2% to close at $19.38, approaching its 50-day moving average of $20.36. It has also moved closer to its 200-day moving average of $21.04. Telik (ELN) fell 7% to close at $3.84, moving closer to its 50-day moving average of $3.80. Also, the stock moved closer to its 200-day moving average of $13.07.

Pharmacyclics (PCYC) hit a new 52-week high today, reaching $34.17 to top the previous high of $33.24.

Merrimack Pharmaceuticals (MACK) hit a new 52-week low today, hitting $5.66 to fall below the previous low of $5.81.