Highlights
- FOMO co-founder Se Yong Park says the trading app will support Circle's Arc blockchain from the day its mainnet goes live.
- Arc, Circle's stablecoin-native Layer 1, is set to launch its public mainnet on September 16, 2026, with USDC as its native gas token.
- Park said the team learned from missing day-one integration when Robinhood Chain launched, and will now prioritize new chains' early liquidity windows.
- Arc's founding validator cohort includes major institutions such as BlackRock, DTCC, ICE, Mastercard, and Visa.
Social crypto trading app FOMO plans to support Circle's Arc blockchain from the very first day of its mainnet launch, according to PANews, citing comments from FOMO co-founder Se Yong Park. Park said the team had learned a lesson from a previous miss: FOMO failed to sync its integration with Robinhood Chain's own launch day, and going forward the team intends to prioritize capturing early liquidity and user acquisition on new public chains as soon as they go live.
What Arc Is and When It Launches
Arc is Circle's EVM-compatible Layer 1 blockchain, purpose-built for stablecoin-native financial activity, using USDC as its gas token and featuring a legally permissioned validator set aimed at institutional compliance. According to Circle's own announcement, Arc's public mainnet is scheduled to go live on September 16, 2026, following a private mainnet phase that has already onboarded more than 100 ecosystem and institutional builders. The founding validator cohort includes heavyweight financial names such as BlackRock, DTCC, ICE, Mastercard, and Visa, positioning Arc as one of the most institutionally backed Layer 1 launches to date.
Why the Robinhood Chain Lesson Matters
FOMO has built its identity around fast onboarding of new tokens across chains including Solana, BNB Chain, Base, Ethereum, and Monad, and closed a $75 million Series B round earlier in 2026 led by Index Ventures at a $550 million valuation. Missing the initial liquidity window on Robinhood Chain's launch meant FOMO's users couldn't trade newly listed tokens on that chain from day one — a meaningful gap for an app whose value proposition centers on being first to new opportunities. Committing publicly to Arc's day-one support signals FOMO is treating chain-launch timing as a competitive variable worth engineering around, not an afterthought.
Related: Solana Sets Sept. 9 Transaction V1 Launch, Alpenglow Slated for October
What It Means for Arc's Ecosystem
Arc's institutional validator lineup already signals strong backing from traditional finance, but consumer-facing trading apps like FOMO integrating at launch matter for a different reason: they determine whether retail liquidity and trading activity show up on the chain immediately, rather than trailing months behind institutional settlement use cases. A stablecoin-native chain with day-one retail trading access could accelerate the kind of organic volume that gives new Layer 1s early network effects.
Forward Look
The date to watch is September 16, 2026, when Arc's mainnet goes live and FOMO's day-one integration will be tested in practice. Whether other consumer trading apps follow FOMO's lead in committing to launch-day support will be a useful signal of how seriously the broader market is taking Arc's institutional backing.
FAQ
What is Circle's Arc blockchain?
Arc is an EVM-compatible Layer 1 blockchain built by Circle for stablecoin-native financial activity, using USDC as its native gas token and featuring institutional validators.
When does Arc's mainnet launch?
Arc's public mainnet is scheduled to launch on September 16, 2026.
What did FOMO's co-founder say about Robinhood Chain?
Se Yong Park said FOMO had not synced its integration with Robinhood Chain's own launch day, and the team wants to avoid repeating that miss with future chain launches.
Who are Arc's founding validators?
Arc's founding validator cohort includes major institutions such as BlackRock, DTCC, ICE, Mastercard, and Visa.
