However, I invested 50$ with Citigroup and turned it into 200. Better yet 20 dollars into AIG at 1 dollar could turn into 700 dollars if you sell it now.
Nope it couldn't AIG did a reserve split and reduced the number of shares by 20 fold, increasing the price by 20 fold resulting in you seeming to be have 20x more value when in fact your just even.