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Opyn

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DeFiTrading
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About Opyn

Opyn is a DeFi options trading protocol that allows users to buy, sell, and create options on ERC20 tokens. It provides capital-efficient options trading, enabling users to hedge against DeFi risks or take speculative positions on various cryptocurrencies.

Opyn is a next-generation decentralized trading protocol that redefines perpetual markets on Ethereum. Built on top of Uniswap’s AMM infrastructure, it enables users to deploy and trade perpetuals for any ERC-20 pair, without the limitations of traditional DeFi fragmentation. Opyn allows users to access linear, stable, and option-like perpetuals through a unified interface while maintaining the capital efficiency and flexibility typically seen in TradFi.


Focused on decentralization and innovation, Opyn delivers a protocol where anyone can deploy a perp market, create new financial instruments, or passively earn by supplying liquidity via its Flo vault. Designed to remove custodial risks and promote composability, Opyn empowers traders, developers, and DeFi strategists with an unmatched toolbox for advanced market engagement.

Opyn has built a novel infrastructure for power perpetuals that combines the best of lending, perpetuals, stablecoins, and options into one seamless protocol. The flagship product, Opyn Markets, acts as a permissionless trading ecosystem where markets can be launched on any ERC-20 pair using Uniswap-based liquidity pools. By doing so, Opyn removes the need for centralized gatekeeping and offers open access to sophisticated trading tools.


One of the standout features of Opyn is its unique SPAN margin system. This system introduces TradFi-grade capital efficiency by treating all assets — including ERC-20 tokens, Uniswap LP tokens, and other perps — as a unified margin portfolio. This means users can open and manage multiple leveraged positions without fragmenting their collateral across separate accounts or pools. By unifying positions, Opyn enables trades that were previously impossible in DeFi.


Opyn’s perp suite includes a variety of formats: Linear Perps (1x exposure), Stable Perps (0x), Square Root Perps (0.5x), and even Squared Perps (2x), letting users craft highly specialized strategies. Its Flo vault automates market making, allowing liquidity providers to passively earn fees across trades. Additional structured products like the Crab Vault give ETH and USDC holders low-risk yield exposure.


As a truly decentralized system, Opyn is immutable, non-custodial, and transparent — with no centralized databases or order books. Everything operates on-chain with verifiable, composable architecture. The protocol is backed by leading crypto investors and trusted by a community of sophisticated DeFi traders and builders. With over $16 billion in total notional volume and $20 million in TVL, Opyn is one of the most innovative forces in DeFi today.


In the evolving landscape of perpetuals and decentralized derivatives, Opyn competes with several notable protocols. Perpetual Protocol offers virtual AMM-based perps trading, while dYdX focuses on high-performance, order book-style decentralized derivatives. GMX combines spot and perpetuals with zero price impact trading. Opyn distinguishes itself by introducing power perpetuals, composable vault systems, and permissionless market deployment, targeting a different level of capital efficiency and innovation.

Opyn provides numerous benefits and features that distinguish it within the DeFi perpetuals landscape:


  • Permissionless Market Deployment: Anyone can create and launch a perp market on any ERC-20 pair, enabling full decentralization and accessibility.
  • Innovative Perp Types: From Linear Perps to Squared and Stable Perps, users can deploy unique financial instruments tailored to diverse strategies.
  • TradFi-Level Capital Efficiency: The SPAN margin system allows users to borrow, lend, and trade across assets without siloed collateral, maximizing capital use.
  • Automated Liquidity Vaults: The Flo Vault and Crab Vault simplify liquidity provision and yield generation through passive strategies.
  • Truly Decentralized: Opyn is non-custodial, immutable, and transparent — staying true to the original DeFi ethos.
  • Composable Architecture: Easily integrates with other DeFi protocols, including Uniswap, unlocking layered strategy development.

Getting started with Opyn is fast and user-friendly, whether you're a trader, liquidity provider, or developer:


  • Visit the Website: Start at opyn.co to explore available markets and vault strategies.
  • Connect a Wallet: Use a Web3 wallet like MetaMask to connect and interact with Opyn’s app securely.
  • Trade or Deploy: Browse existing perp markets or permissionlessly deploy your own market on any ERC-20 pair.
  • Provide Liquidity: Join the Flo Vault to earn passive income through market making, or explore Crab strategies for ETH and USDC.
  • Explore Resources: Review the documentationto dive deeper into protocol mechanics and integrations.
  • Join the Community: Engage with the Opyn Discord and follow @opyn_ on Twitter for updates and strategy ideas.

Opyn FAQ

  • Power perpetuals on Opyn introduce customizable payoff structures like square root, squared, or flat exposure to assets, going beyond the standard linear 1:1 relationship seen in traditional perps. These allow traders to express market views with precision and capital efficiency — for example, betting on volatility or applying leverage without liquidations.

  • The SPAN margin system on Opyn lets you manage your margin based on an entire portfolio view, instead of isolating each position. You can use ERC-20 tokens, LP tokens, vault assets, and even other perp positions as interconnected collateral, enabling greater leverage and reduced capital lock-up across trades.

  • Yes, Opyn is a fully permissionless protocol. You can launch a perpetual trading market on any ERC-20 token pair without approval or central intervention. Combined with Uniswap liquidity and AMM vaults like Flo, this opens up custom markets and innovative DeFi primitives with minimal friction. Learn more at opyn.co.

  • Squeeth (squared ETH) was a signature product by Opyn, offering ETH exposure with no liquidation risk and unlimited upside. As of November 2024, the protocol was shut down, but Opyn is preparing new markets and strategies that reflect the same experimental and user-friendly design. Users can still redeem Squeeth positions at no price impact from the settlement page.

  • Opyn remains aligned with the core values of DeFi by being non-custodial, immutable, permissionless, and completely on-chain. Unlike platforms with off-chain order books or central governance, Opyn relies on Uniswap AMM architecture and smart contracts that can’t be altered arbitrarily, ensuring long-term transparency and accessibility.

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