Liquidity Issue / Suggestion
On another board, we had a weekly stockpicking contest. I think it worked out well. Bobwins won more than his share of medals. I wouldn't call it the Bobwins Rule, but some of his picks were somewhat illiquid.
We ultimately decided on setting a minimum ADV (average dollar volume) of something like $100,000 to $200,000, i.e., average daily volume (50-day average) times share price, because we wanted stocks that were at least somewhat tradeable.
That board was private, had 20 to 30 members. Weekly picking requires more liquidity than 3.5 month contests. Then again, this board is public and has who knows how many lurkers preying upon top pickers' picks. I don't think it would be a bad idea in the next contest to require that three picks exceed $250,000 (or more) ADV.
Just one chimp's opinion.