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

Repligen Corporation (RGEN) was a significant gainer in the sector, rising 15.8%. The stock closed at $4.54 with 411,039 shares moving. The stock traded in a range of $4.02 to $4.59. The stock has seen some positive movement recently as shares are up 72 cents (18.8%) from a price of $3.82 on July 26, 2012.

Clovis Oncology (CLVS) was a major loser in the sector, falling 13.7% (-$2.16) to close at $13.55 with 177,697 shares moving. The stock traded in a range of $13.34 to $16.23.

SurModics (SRDX) rose 14% to close at $17.53, cross its 50-day moving average of $16.44 and 200-day moving average of $15.15. Bristol-Myers Squibb (BMY) declined 8.6% to close at $32.55, moving below its 50-day moving average of $35.10 and 200-day moving average of $33.80.

National HealthCare Corporation (NHC) rose 3.6% to close at $43.24, approaching its 50-day moving average of $44.93. It has also moved closer to its 200-day moving average of $44.46. Hospira (FMS) fell 3.1% to close at $35.28, moving closer to its 50-day moving average of $34.28. Also, the stock moved closer to its 200-day moving average of $69.14.