Arcus
Arcus is a self-custodial spot-and-perps venue on Robinhood Chain — around $5.6m of TVL in early July 2026 — built by an ex-dYdX team together with Robinhood Crypto to trade Stock Tokens and crypto in one place. It reported roughly $2.5m of 24h spot and $1.9m of 24h perp volume near launch, making it one of the chain's more active derivatives venues in a still-thin market.
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