Assuming 30 trading days horizon, Federal National Mortgage Association is expected to generate 6.52 times more return on investment than Supertel. However, Federal is 6.52 times more volatile than Supertel Hospitality Inc. It trades about -0.03 of its potential returns per unit of risk. Supertel Hospitality Inc is currently generating about -0.4 per unit of risk. If you would invest  1,815,000  in Federal National Mortgage Association on May 21, 2013 and sell it today you would lose (115,000) from holding Federal National Mortgage Association or give up 6.34% of portfolio value over 30 days.