The MFI approach is to buy and hold for a year equal $ amounts in 25 to 30 stocks (selected from a list meeting certain characteristics). Stocks that are losers, get sold just before a year to realize short term capital losses. Winners are held for a year and a day to realize long term gains and save on taxes (always a good idea!).
There is my mysterious 20th stock, NCOG (Non-Commissioned Officer Group I think). I have already bought it and sold it, against the rules of MFI. The week after I bought NCOG, their chairman announced his intent to take them private at a 42% premium. As a 42% gain in a week sounded “purty” darned good to me, I sold as the book didn’t precisely cover that case.