This is an over-simplified view of the market. The market isn't a zero-sum game. It's often in an investor's best interests to publish their research on a position (after they have taken it) to convince others to jump in the trade with them. It doesn't do you any good to find a diamond in the rough if no one else knows about it.
It is a minefield though and you should never 100% trust one source on any given investment, but to act like there is some kind of mathematical truth that no one ever publishes any useful stock analysis is just silly.
It is a minefield though and you should never 100% trust one source on any given investment, but to act like there is some kind of mathematical truth that no one ever publishes any useful stock analysis is just silly.