Considering 30-days investment horizon, Philippine Long Distance Telephone Company is expected to under-perform the Exponent. But the stock apears to be less risky and, when comparing its historical volatility, Philippine Long Distance Telephone Company is 1.01 times less risky than Exponent. The stock trades about -0.46 of its potential returns per unit of risk. The Exponent Inc is currently generating about 0.15 of returns per unit of risk over similar time horizon. If you would invest  5,564  in Exponent Inc on May 21, 2013 and sell it today you would earn a total of  214.00  from holding Exponent Inc or generate 3.85% return on investment over 30 days.