Foursquare buys location data from instagram and then resells it to companies. Then they look at the location data and figure out that people are going to place

Foursquare buys location data from instagram and then resells it to companies. Then they look at the location data and figure out that people are going to places like an Apple Store and then they take appropriate actions. See https://www.bloomberg.com/news/articles/2017-08-31/you-re-using-foursquare-all-the-time-you-just-don-t-know-it https://www.bloomberg.com/news/articles/2017-08-31/you-re-us... EDIT: Changed from Hedge fund to companies. Couldn't find source of Hedge funds.