[rafiki6]

Bingo. You nailed it. I work in finance. Developed markets have efficient stock markets. They are highly liquid. The reality is that there's lot of people competing for the same profits. In reality when there's that many players, if there's a profit to be had from a dataset you will be buy from a vendor, chances are one of your many competitors already bought it and found it. This is why we now say don't try to beat the market, you likely can't and mostly just need to get lucky having the right holding when an unforeseen event occurs. Too many variables at play that we just don't understand. Most firms are buying these datasets to stay relevant but they really make no difference in their actual investing strategies.