There comes a point where if an organization has something unique there is no point in selling it, they'd just use it for their own gain and watch the AI multiply their initial investment.
It has happened already, the best hedge funds are not open to investors but ran as a pension scheme for employees and founders.
Further, I suspect any ai capable of outperforming the market would be too rational, to the point that you wouldn't be able to market it.
If the ai decided that bitcoin wasn't the future, and in 20 years time was proved right, how many people would have maintained that patience?