Case in point: Our best-performing position in Game-Changing Stocks to date: MINDBODY (Nasdaq: MB), the undisputed leader in management software for the wellness industry.

Since our addition of MB to the portfolio, the market has been taking notice. At the time I issued my "sell" recommendation (I'll explain why in a moment), my readers and I were sitting on a 47.6% gain in five months.

Several hedge funds have been paying attention, too, as they built substantial positions in the stock. It has been a great stock not just for us, but also for a few hedge funds, such as Luxor Capital Group, LP, and Abdiel Capital Advisors LP.

The largest holder of MB is Luxor, with the ownership of more than 15% of shares outstanding -- making MB Luxor's fouth-largest position. And here's more evidence that Luxor really likes the stock: Filings show that the hedge fund has recently been reducing the size of each of its top seven positions, except for MB.