Ayala Pharmaceuticals Inc (ADXS)

[zzaatt]

This is the classic retail/amateur investor mistake. Sell your winners before they reach their potential and miss out on big gains, while holding your losers while they stagnate or until they go bankrupt.

LOL! The only problem is that you don't know which until after the fact. Equally true for the "professional", who BTW, rarely beats the market.