I sold a few more shares of apple today for about a $200 gain and 100 shares of EMC for about $100 gain. It’s important in this kind of market to take the gains when you can. It’s ok to leave something on the table but you want to play with the house’s money.
Selling into strength (prices moving upward) is the best way to ensure you are profitable. Solid stocks like Apple and Google are great examples of buying on the way down and selling on the upside. You don’t make any money until you sell.

