Let us think logically. Anyone who buys and sells stocks is doing it only to make money. If I know a good buy, what would I do? Would I first buy it myself or would I tell others to buy it? Obviously if your tip is genuine, you stand to gain much more by buying the stock rather than telling others to do so. That is why I do not trust these tipsters. It is clear that they first buy, then advice others to buy to push up the price and then book profits, leaving you holding the baby.