May 13, 2013 (Fast Lane via COMTEX) -- Below are the three companies in the Construction Materials industry with the highest betas. Higher-beta stocks mean greater volatility and are therefore generally considered to be riskier but also may provide the potential for higher returns.Headwaters (NYSE:HW) is highest with a beta of 1.5. Headwaters Incorporated develops and deploys alternative fuel and related technologies. The Company converts fossil fuels such as coal and heavy oils to alternative energy products while improving energy efficiency and the environment. Headwaters also acquires and expands synergistic new business opportunities. Headwaters share prices have moved between a 52-week high of $11.52 and a 52-week low of $3.93 and are now trading 182% above that low price at $11.09 per share. In the last five trading sessions, the 50-day moving average (MA) has climbed 1.9% while the 200-day MA has risen 1.7%.

Eagle Materials (NYSE:EXP) is next with a beta of 1.4. Finishing up the top three is Texas Industries (NYSE:TXI), with a beta of 1.3. ---------------------------------------------------------------------------------------------

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