Spark Energy is OVERVALUED at 8.66 per share with modest projections ahead. Spark Energy appears to be somewhat reliable, given 1 month investment horizon. Spark Energy owns Efficiency Ratio (i.e. Sharpe Ratio) of 0.11, which indicates the firm had 0.11% of return per unit of risk over the last month. Our standpoint towards measuring the volatility of a stock is to use all available market data together with stock specific technical indicators that cannot be diversified away. We have found twenty-one technical indicators for Spark Energy, which you can use to evaluate future volatility of the company. Please operate Spark Energy Coefficient Of Variation of 1052.21, semi deviation of 2.37, and Risk Adjusted Performance of 0.1111 to confirm if our risk estimates are consistent with your expectations.