Hyperliquid Prediction Markets Launch, Arbitrum ETH Release Potentially Blocked, and many more...

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Prediction Markets🔮

• Outcome Markets, the first prediction market platform native to Hyperliquid, launches mainnet, enabling traders to bet on crypto, sports, and political events through the same CLOB used for Hyperliquid perps.

  • Contracts are fully collateralized with no leverage or liquidations, settle at 0 or 1 in USDH, and can be cross-margined alongside existing Hyperliquid positions.

  • Live BTC daily binary contracts are available now.

• Polymarket is pushing several fixes after its April 28 upgrade. A Deposit Wallet update launching May 4 at 12:30 UTC will fix ghost fills, with up to 30 minutes of downtime. Liquidity rewards from migration day have been sent out, a brief rewards outage earlier today is resolved, and fixes for balance errors and PnL display bugs are expected by Wednesday.

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DeFi📈

• Arbitrum’s Snapshot temperature check to release 30,765.67 ETH frozen from the April 18 rsETH exploit is live and running until May 7, with early voting overwhelmingly in favor, but according to a forum post on Arbitrum DAO, a restraining order has been served by Gerstein Harrow LLP and Berkman Law Office, which may complicate the recovery timeline.

  • The order stems from creditors pursuing (Democratic People's Republic of Korea) DPRK-linked funds tied to a 2015 North Korea-related terror judgment, potentially blocking the DAO's authorization to route the ETH to a 3-of-4 DeFi United recovery multisig

• Royco Dawn has added seven tranched yield-bearing stablecoins ahead of launch: sNUSD (Neutrl), savUSD (Avant Protocol), apyUSD (Apyx), autoUSD (Auto Finance), syrupUSDC (Maple Finance), sUSDai (USD.AI), and liUSD-4w (infiniFi), spanning strategies from market-neutral trading and institutional lending to AI compute infrastructure and fixed-duration basis positions.

• Circle Ventures purchased AAVE tokens in a show of support for the DeFi United recovery effort.

Perps📉📈

• TradeXYZ launches pre-IPO perpetuals that reference anticipated public equity offerings and convert to standard perps once shares list.

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List of Hacks/Exploits⚠️

• Wasabi Protocol’s EVM deployments across Ethereum, Base, Blast, and Berachain were compromised for $5M+ on April 30, with the breach now contained. Users with funds in the affected vaults should not interact with their positions, while unaffected vault holders can withdraw normally.

  • Solana deployments and the Prop AMM are unaffected. A full postmortem is pending. This is a developing story.

• Aftermath Finance’s perpetuals market on Sui lost approximately $1.1M USDC across 11 transactions in 36 minutes after an attacker exploited a fee accounting bug to inflate synthetic collateral and drain protocol vaults. Only the perps market was affected. Blockaid detected the exploit and is supporting the investigation alongside Mysten Labs.

  • This is a developing story.

• Sweat Foundation lost approximately 13.71B SWEAT tokens — roughly 65% of total supply — in a 30-second window on April 29, with funds routed via Ref Finance and Wormhole. The attacker, running a custom drainer contract, controls approximately 17.71B SWEAT (~$3.46M) across multiple staging wallets, with a small portion already swapped to NEAR and USDC.

  • This is a developing story.

• Syndicate's Commons Bridge on Base was exploited for 18.5M SYND tokens, which were swapped for approximately $330K and triggered a 36% flash crash. Syndicate has since confirmed that the affected customer has been made whole, with a snapshot of pre-compromise SYND balances taken for remaining Commons holders.

  • The team has indicated users will be compensated 1:1 or better, with full recovery details to follow.

• JuDAO, a deflationary token on BNB Chain, lost approximately $464K after an attacker exploited two built-in drain a bug in JUDAO’s sell-transfer hook, draining the JUDAO-USDT/BNB PancakeSwap liquidity pool.

  • Users providing liquidity to that pair lost funds proportionally. Token holders without LP positions were unaffected.

Farms🧑‍🌾

• Strata launched the Saturn Credit market, offering senior (srUSDat) and junior (jrUSDat) tranches of USDat for 7 and 13% APY, a yield-bearing stablecoin backed by Strategy’s Bitcoin treasury (STRC).

• Pendle distributed $430K in USDG incentive rewards for YT and LP holders in March and April 2026, alongside PENDLE token rewards.

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