Proton (XPR) traded up 3.2% against the U.S. dollar during the 24 hour period ending at 16:00 PM ET on October 21st. Over the last week, Proton has traded down 4.8% against the U.S. dollar. One Proton coin can currently be purchased for $0.0006 or 0.00000002 BTC on popular cryptocurrency exchanges. Proton has a market […]