Hello Bryan,
In order to make our portfolios easy to trade, we have set an average volume limit of $300,000 per day to make a stock eligible in our filters.
Then, depending on which portfolio you want to follow, you can expect a different number of stocks to hold. See this study which shows a table with the average number of stocks on hold in each portfolio:
http://www.superstockpicker.com/ultimate_price_momentum_series_study_part_2.htmlThe Price Momentum Weekly portfolio is of course the one that will hold the most stocks at any time. If you are concerned about volatility, that might be the easiest choice for you.