The ZKX Protocol, a social derivatives trading platform on Starknet, has closed due to minimal user engagement and economic challenges. Founder Eduard Jubany Tur cited low trading volumes, insufficient revenue to cover expenses, and broader DeFi sector fatigue as reasons for the shutdown. Despite recent funding, the ZKX token's value plummeted, contributing to the protocol's unsustainable situation. All markets have been delisted, positions closed, and funds returned to users.