Fintech wars are heating up as they encroach on each other’s turf — how investors should play it

The PayPal application can be seen on a mobile phone.
Felix Kästle | picture alliance | Getty Images

Earlier this week, CNBC reported that PayPal is exploring ways to let users trade individual stocks. Since all of the major fintechs now have the goal of becoming customers' digital financial supermarket, CNBC Pro broke down which stocks investors might want to own as the group battles it out.