ZCash (ZEC) $500+

"We foresee a day when the world’s financial systems run on top of and interoperate with Zcash. Just as HTTPS is now ubiquitous, we believe Zcash is uniquely positioned to serve as a foundational layer for a global and digital economy. Among other attributes, this will require privacy, scalability, security and confidence in its foundational economics."

Vitalik Buterin, Ethereum co-founder and Zcash community member
“Halo is a huge step forward for Zcash. A zero-knowledge system without a trusted setup will ensure privacy and future scalability that is available to everyone!”