Robinhood Chain's onchain activity surged this week as a memecoin frenzy, a Pump.fun integration and a defecting Solana app converged on the barely week-old network — even as its largest single inflow traced to a stablecoin deposit rather than the meme trade.

Robinhood Chain surpassed 100K weekly active users within its first week, recording 50,000 daily users and 1.7 million transactions on its Arbitrum-based

Pump.fun said Wednesday it added support for trading tokens tied to Robinhood's blockchain, a move that comes as a memecoin modeled on the brokerage's old mascot has posted…