The Utilities sector (XLU) held steady during a trading day that saw the S&P 500 grow 0.7%.

The ETF, as a proxy for the sector, tracked closer to the overall market today than over the past month. Entering today's trading, XLU was up 1.3% over the last thirty trading days while the S&P 500 climbed 2.2%.

Cadiz (CDZI) was a major loser in the sector, falling 5.5% (-38 cents) to close at $6.51 with 57,037 shares moving. The stock traded in a range of $6.48 to $6.88. The stock is down over the last three months, having fallen $1.73 (-21%) from $8.24 on April 20, 2012.

NRG Energy (NRG) was a major gainer in the sector, rising 2.5% (+44 cents) to close at $17.93 with 2.9 million shares moving. The stock traded in a range of $17.40 to $17.98. Shares have been on an upward trajectory over the past month, rising $2.72 (17.9%) from a price of $15.21 on June 18, 2012.

Markwest Energy Partners (MWE) declined 0.5% to close at $53.96, moving below its 50-day moving average of $50.38 and 200-day moving average of $54.70. OGE Energy (OGE) rose 1.5% to close at $52.78, crossing its 50-day moving average of $52.36.

Atlas Energy (SJI) fell 1% to close at $32.01, moving closer to its 50-day moving average of $31.23. Also, the stock moved closer to its 200-day moving average of $51.23. DCP Midstream Partners (DPM) rose 1.5% to close at $43.45, getting closer to its 200-day moving average or $43.75.

NextEra Energy (NEE) hit a new 52-week high today, reaching $70.50 to top the previous high of $70.