The Health Care sector (XLV) showed little movement on a trading day that saw S&P 500 fall 0.7%.

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 0.8% over the last thirty trading days while the S&P 500 climbed 2.1%.

Sarepta Therapeutics (SRPT) was a significant gainer in the sector, rising 14.3%. The stock closed at $14.40 with five million shares moving. The stock traded in a range of $14.05 to $15.18. Avanir Pharmaceuticals (AVNR) was another big mover, climbing 27 cents (+8.6%) to a closing price of $3.41.

Bio-Reference Laboratories (BRLI) was a major loser in the sector. Its price dropped 9.6% (-$2.73) to close at $25.78, as 1.2 million shares moved. The stock traded in a range of $25.54 to $29.32. The stock has risen $4.93 (23.6%) over the last three months from a price of $20.85 on June 5, 2012.

LCA-Vision (LCAV) rose 8.1% to close at $4.02, cross its 50-day moving average of $3.75 and 200-day moving average of $5.12. MAKO Surgical (MAKO) declined 3.5% to close at $16.66, moving below its 50-day moving average of $15.21 and 200-day moving average of $25.93.

Elan Corporation plc (ELN) rose 2.2% to close at $11.54, approaching its 50-day moving average of $12.07. It has also moved closer to its 200-day moving average of $13.11. Young Innovations (DGX) fell 2.1% to close at $36.80, moving closer to its 50-day moving average of $35.92. Also, the stock moved closer to its 200-day moving average of $58.64.