<prompt> Human: At some point if money continues to flood into funds whos only investment criteria is listed on a big exchange it would seem to incentivize any company doing whatever they can to get listed, knowing a large portion of the investment market is unselective. Fraud may even ensue to exploit this.Does anyone else share this concern? If not, why is this not an issue?  <response>: The principle of arbitrage will ensure that all the companies in an index are more or less fairly priced. Never, ever will everyone index, causing massive distortions in the value of individual companies. There will always be arbitrage sharks who will take advantage of any market distortions that they can squeeze profit from. If ever indexing became so wide spread that certain companies became over or undervalued...well it wouldnt last long before those distortions were corrected by profession traders and the algos. 