Sasa it all depends on your trading strategy. At pesent I believe what a lot of other traders are predicting - that we are due for a market correction this summer and should be keeping a larger cash position. Pick stocks that have good trading volume so if you need to get out quickly you'll be able to. I am beginning to reduce my position in many stocks as there are no sure bets and rule #1 is protect your capital. Trade stocks you know well and use your play money on new stocks. Sorry to say I do not recommend stocks as this has proven disasterous for me and I have been stung picking someone else's recommendations.
Happy trading Red Mars