Er, looking at stocks from a one-year horizon only does not explain much and is barely better than making educated guesses. Looking at stocks
without considering macroeconomic conditions as a whole, important due to issue with Greece and China in 2015, is flat-out dangerous. And looking at single stocks is not helpful due to hedging/covariance.
If you're looking into stock investing, try looking into indicators such as moving averages and RSI.