ZEC has climbed more than 51% over the past 30 days, briefly pushing Zcash past Cardano to become the 11th-largest cryptocurrency by market cap at roughly $9.8 billion. The token hit a weekly high of $636 on Saturday before pulling back, and is trading at $554 as of Tuesday — up 31.79% on the week and down 2.69% in the past 24 hours.
The rally started with Multicoin Capital's disclosure that it had accumulated a large ZEC position , arguing that Zcash's shielded transactions offer protection against growing government scrutiny of crypto holdings. At Consensus Miami on May 8, Zcash Open Development Lab CEO Josh Swihart gave the run a more durable-looking foundation: a concrete roadmap toward quantum-resistant infrastructure.
Swihart said quantum-recoverable wallets will ship within a month — by June — followed by a full transition to post-quantum cryptography over the next 12 to 18 months. The complete protocol upgrade, known as Project Tachyon, is expected alongside scaling work aimed at bringing Zcash's throughput to Visa and Mastercard levels.
The June wallets are a transitional measure rather than the finish line. They are designed to let users migrate assets to quantum-resistant algorithms while retaining access to Zcash's shielded transaction layer. The deeper risk they address is what cryptographers call "harvest now, decrypt later": adversaries record encrypted transaction data today, intending to break it once quantum hardware matures. For a privacy coin, that threat is more acute than for transparent chains — the entire value proposition rests on transaction confidentiality holding indefinitely.
Swihart also took aim at Bitcoin, describing it as fundamentally broken for private payments on the grounds that transparent on-chain balances leave users exposed to surveillance and asset seizure. The comments land in a market where regulatory pressure on transaction visibility has been a recurring driver of privacy coin inflows.
Zcash's shielded pool now holds a record 30% of circulating ZEC. The Electric Coin Company's wallet has also processed roughly $600 million to $700 million in cross-chain swaps into ZEC via a Near Intents integration since launch — a sign that the inflows are not purely speculative.
The rally now has a technical story behind it. Whether it lasts depends in part on whether Project Tachyon delivers on its 2027 timeline — a protocol-level quantum upgrade no major public blockchain has yet completed.
