Some 12 million Zcash tokens are in circulation and the supply is capped at 21 million tokens, similar to Bitcoin. The private coin has gained more than 70 percent in 2021 and now trades at about $115. Its all-time high is $5,942, reached in 2016. Although some exchanges are banning privacy coins, you can buy Zcash on Coinbase, Binance, and Kraken with the U.S. dollar.