During trading today, the S&P 500 dropped 0.7%, and the Utilities sector (XLU) showed little change.

Centrais Eletricas Brasileiras (EBR) was one of the sector's big losers, as its price dropped 4.8% (-35 cents) to close at $6.95. 1.8 million shares of the stock moved. The stock traded between $6.95 and $7.26. Share price is up 2 cents (0.3%) from $6.93 on August 1, 2012.

Calpine Corporation (CPN) was a major gainer in the sector, rising 2% (+34 cents) to close at $17.76 with 4.1 million shares moving. The stock traded in a range of $17.76 to $18.49. The stock has been on the rise in the last two months, up $1.07 (6.4%) from a price of $16.69 on July 3, 2012.

Ormat Technologies (ORA) declined 1.9% to close at $19.46, moving below its 50-day moving average of $19.64 and 200-day moving average of $19.62.

Cheniere Energy (LNG) fell 2.4% to close at $14.53, moving closer to its 50-day moving average of $14.22. Also, the stock moved closer to its 200-day moving average of $14.35. U.S. Geothermal (HTM) rose 1.4% to close at 33 cents, moving closer to its 50-day moving average of 33 cents.

CPFL Energia (CPL) hit a new 52-week low today, hitting $20.77 to fall below the previous low of $21.19.