Stocks Hitting 52-Week Lows

shares fell 4.26 percent to touch a new 52-week low of $84.38 after the company lowered its FY15 earnings guidance.

shares reached a new 52-week low of $25.31 after the company issued a weak Q2 forecast. Allegheny Tech projected a Q2 loss of $0.17 to $0.15 per share.

shares reached a new 52-week low of $59.79. Lincoln Electric shares have dropped 9.52 percent over the past 52 weeks, while the S&P 500 index has gained 6.43 percent in the same period.

shares fell 1.85 percent to touch a new 52-week low of $9.03. EnerNOC's PEG ratio is -0.30.