The contest rules require at least 8 picks and each pick must have a weighting of 5-20%.
(Mathematically, these rules imply that every contestant’s portfolio ought to consist of exactly four stocks with a 20% weight and four stocks with a 5% weight, although most contestants use a different allocation scheme.)
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”