I think you should choose a stock that trades on the NYSE and is also in the S & P 500. It should also trade at least 2 mil shs per day and be incrediblly financially stable, a very good credit rating is the best indicator. Finally it should have a stock price between 20-70 dollars. I think higher dollar stocks are better because they will tend to a have a larger average daily range, however lower dollar stocks may have tighter spreads making them easier to bailout of.