Protocol Engineer

Arcus partners with Fun on deposit and withdrawal infrastructure. Jul 29, 2026 You spot a trade you want to make, but your funds aren't where you need them. They're on another exchange, another chain, or still in your bank. So before you can act, you first need to bridge, swap, deposit, and then wait. And somewhere in that sequence, the move is gone. It's one of the most frustrating ways to lose a trade, not because you were wrong, but because your funds couldn't get there in time. Yet it happens often, and to the best of Arcus. Arcus x Fun partnership. Today, Arcus is announcing its partnership with Fun, the deposit and withdrawal infrastructure powering funding across the platform. Fun collapses the sequence into a single step: whatever you hold, wherever it sits, arrives as USDG in your Arcus account, ready for spot Stock Tokens or Equity Perpetuals trading. * Fund any way you want: deposit with a card, a bank transfer, crypto from any major chain, or straight from an exchange like Coinbase. * Your funds arrive in USDG: whatever you send is converted and bridged automatically, with no spread on most local currency conversions. * Free in, free out: Zero fees on USDG deposits and withdrawals, and Arcus adds nothing on top of any third-party network costs. * Self-custody in and out: Fun never holds your balance. Funds move from your wallet to your Arcus account and back, never into a shared pool. * One address, one flow: Every funding path is routed through the same flow inside Arcus, settling to the same account on Robinhood Chain. This isn't convenience at the margins. Deposit friction is invisible right up until it costs you an entry, and every venue that leaves it unsolved is quietly asking traders to run their own logistics operation before they can express a view. Fun removes that job entirely. "In the future, all value will live on-chain. Stablecoins disrupted access to a stable store of value, and tokenized equities will be 10x larger than stablecoins. For the first time ever, users around the world can access Western markets - a consumer in Argentina, Turkey, or Vietnam can now buy into the S&P 500, Apple, Tesla, and more. The Arcus team is among the top builders in this space, and we're humbled to support them on this globally impactful journey." - Alex Fine, Founder & CEO, Fun Why Fun. Fun is the payments infrastructure behind the next generation of on-chain trading venues: fiat and crypto rails, multi-chain orchestration, and trading-grade settlement. It powers every deposit and withdrawal on Polymarket, the world's largest prediction market. The track record reflects the design: over $20 billion in annual volume, $1 million trades settled in under five seconds, and a success rate above 99.999%. For a venue like Arcus, those aren't vanity metrics. Funding that arrives late, or fails silently, is exactly the kind of operational failure other infrastructure hasn't always solved for. Reliability is the constraint Fun is built around. "Funding is a critical part of the trader's journey that's been broken in DeFi for too long. If we want to bring serious traders onchain, the path from intent to position has to be one step, not five. Fun is the infrastructure provider we've seen come closest to solving this at the scale and reliability a venue like Arcus requires." - Eddie Zhang, CEO, Arcus Spot trading is live at app.arcus.xyz. Equity Perpetuals are live in beta, rolling out by cohort. Join the waitlist at waitlist.arcus.xyz. Arcus is a blockchain-based smart contract protocol that permits self-custodial peer-to-peer trading of Stock Tokens, cryptoassets and perpetual futures. Arcus is not a regulated financial services provider, and it is not available in the U.S., Canada, United Kingdom and other restricted jurisdictions. Stock Tokens are tokenised securities that provide economic exposure to a relevant underlying equity instrument or ETP through a contractual claim against the Issuer for a cash Redemption. Stock Tokens involve risks not present, or not present to the same extent, in traditional stock ownership, including private-key loss or compromise, limited redemption access, liquidity constraints, price or tracking divergences from the underlying, and uncertain or evolving regulatory treatment. Trading Stock Tokens, cryptoassets or perpetual futures is risky and involves risks of loss, particularly when using leverage. Do your own research. This content is provided as a general tool for users to learn about or interact with Arcus on their initiative, with no endorsement or recommendation of any trading activities. Users or potential users of this content should not regard it as involving any form of recommendation, invitation or inducement to deal in Stock Tokens, cryptoassets or perpetual futures. Nothing herein should be used as legal, financial, tax, or any other form of advice. In no event will Pocket Protector Labs Inc. or its affiliates be liable for any loss or damage arising from or in connection with the use of Arcus or this content. By continuing to access this content, you agree to the Interface Terms of Use, Protocol Terms and Privacy Policy. Market analysis is facilitated with charts by independent third party service provider(s).

Fun, a New York-based startup building global payments infrastructure, has raised $72 million in a Series A round. The company connects traditional bank accounts to blockchain networks, focusing on what CEO Alex Fine describes as "the highest converting method for moving money on a blockchain". Fine emphasises separating blockchain technology from cryptocurrency volatility, noting that adoption of stablecoins, tokenised equities and global payments continues growing despite crypto market downturns. The platform enables individuals in developing economies to access Western markets and participate in global capitalism through tokenised assets. Fun positions itself as a key facilitator for accessing tokenised financial products, which Fine believes will play a crucial role in future blockchain-based finance. The CEO also called for clearer US regulatory guidelines to help startups navigate compliance complexities.