Use seller data to figure out which of your competitor's products are the most profitable, copy their product, short-sell their stock, buy-back your own stock w

Use seller data to figure out which of your competitor's products are the most profitable, copy their product, short-sell their stock, buy-back your own stock with the cash, sell a bit of it when it pops to pay your Yacht/Jet/Hooker bill. Some guys just have it all figured out, huh?