Because you can use that information to speculate on mergers and acquisitions: https://www.bloombergquint.com/business/hedge-funds-track-j-j-private-jet-for-an-

Because you can use that information to speculate on mergers and acquisitions: https://www.bloombergquint.com/business/hedge-funds-track-j-j-private-jet-for-an-edge-on-actelion-score https://www.bloombergquint.com/business/hedge-funds-track-j-...