Markets Optimism Plunges Double Digits Amid Base’s Tech Stack Overhaul February 19, 2026 By The Coin Weekly This post was originally published on this siteOptimism’s OP token sank after Base announced it’s moving away from the OP Stack to a unified, self-operated tech stack. Share FacebookTwitterPinterestWhatsApp Latest stories Markets Trump’s White House Has One View of Crypto Legislation. His Family’s Crypto Company Has Another The Coin Weekly - February 24, 2026 Markets Ethereum Foundation Starts Staking Treasury Amid Vitalik Buterin’s ETH Sales The Coin Weekly - February 24, 2026 Markets Bitcoin Traders Expect More Pain Ahead After BTC Falls 50% From Peak The Coin Weekly - February 24, 2026 AI Tether-backed Oobit adds crypto-to-bank transfers for local payment networks The Coin Weekly - February 24, 2026 AI Ethereum Foundation starts staking ETH as client diversity concerns persist The Coin Weekly - February 24, 2026 - Advertisement - You might also like... Markets Trump’s White House Has One View of Crypto Legislation. His Family’s Crypto Company Has Another The Coin Weekly - February 24, 2026 Markets Ethereum Foundation Starts Staking Treasury Amid Vitalik Buterin’s ETH Sales The Coin Weekly - February 24, 2026 Markets Bitcoin Traders Expect More Pain Ahead After BTC Falls 50% From Peak The Coin Weekly - February 24, 2026