Locking In Another Gain In Our Superstock Investor Morning Matters Portfolio

We began the Morning Matters Portfolio in April of 2008. Today we are locking in gains on Symantec (SYMC). Why?
The company has made several changes we are not happy with especially their purchase of Blue Coat. The clincher to sell was a recent report noting holes in Norton Antivirus and Symantec products. The gain is 18.52% and in the same period we held the shares the S&P 500 is up 1.88%.
Since we began in 2008 our 12 stock portfolio is up 487.51%. In the same period, the S&P 500 is up 58.30%. There have been 80 winners to 31 losing almost a 3:1 win:lose ratio.