We currently get to perform data analysis on 500 stocks, and this amount will (hopefully) increase in the future.
Once I have performed my analysis and ranked my purchases, how many stocks should I trade? I know that this question depends on a few variables, including how much money is in the trading account, how much commissions are, and how often I am trading.
With the contest default account size and commissions, how many stocks should I select if I am trading once a day? Is there a good rule of thumb? I want to diversify my account to reduce non-market risk, but I also don't want transaction costs to dilute my returns.