Zcash (ZEC) led a broad altcoin rally over 24 hours, rising 47.1% to $836 before settling near $810. Bitcoin Cash (BCH) gained 31.4% to $299.49, while Cardano (ADA) advanced 19.0% to $0.2563. Dogecoin (DOGE) and WhiteBIT Token (WBT) each rose 17.7%, Stellar (XLM) climbed 16.2%, Chainlink (LINK) gained 13.3% and Hyperliquid (HYPE) increased 11.9% to $81.50. Zcash has been this year’s standout performer, supported by demand for privacy-focused assets and developments involving exchange-traded funds (ETFs), including Grayscale’s effort to convert its Zcash Trust into what would be the first privacy coin ETF in the United States. The token also rose 13% on August 21, reaching an intraday high of $663 and taking its market capitalization toward $10.8 billion. The rally has been volatile: Zcash reached $686 earlier this month before coordinated selling triggered $28 million in liquidations, Bitcoin.com News reported. Gains across layer-one tokens, payment-focused coins and decentralized exchange (DEX) infrastructure suggested market-wide liquidity rather than a single project catalyst. The broader advance was supported by U.S. President Donald Trump’s renewed enthusiasm for the Digital Asset Market Clarity Act and a Treasury Department announcement to expand long-dated bond buybacks, easing yields and releasing liquidity for risk assets. Ether (ETH) had already jumped 18% to $2,250 earlier in the week. Analysts caution that broad altcoin rallies can carry heavy leverage, increasing the risk of sharp pullbacks. Trading volume also rose sharply across the named tokens, indicating the move was supported by substantial order flow rather than thin weekend liquidity. Buyers may remain in control if regulatory optimism, Treasury liquidity and institutional interest in privacy assets persist; traders are watching for tangible congressional progress on crypto market-structure legislation in the coming weeks.