Asset Comparison and Correlation

Given investment horizon of 30 days, PIMCO Total Return ETF is expected to under-perform the SP 500. But the etf apears to be less risky and, when comparing its historical volatility, PIMCO Total Return ETF is 2.85 times less risky than SP 500. The etf trades about -0.25 of its potential returns per unit of risk. The S&P 500 is currently generating about 0.39 of returns per unit of risk over similar time horizon. If you would invest  157,879  in S&P 500 on April 23, 2013 and sell it today you would earn a total of  7,656  from holding S&P 500 or generate 4.85% return on investment over 30 days.