Setryn

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Description

Setryn

Setryn is the private fixed-expiry exchange on Arbitrum.

Instead of combining spot trades, perpetuals, manual hedges, and disconnected venues, Setryn lets traders, treasuries, protocols, and market makers trade future prices, rates, yield, and complete strategies through standardized dated markets.

What Setryn provides

Public order books and firm streaming liquidity
Private RFQs and auction-based execution
Expiry-specific pricing and market data
USDC collateral and portfolio risk management
Atomic, permissionless settlement of signed quotes
Position entry, reduction, rolling, fixing, settlement, and recovery
Verifiable execution and settlement receipts
Professional trading, portfolio, maker, treasury, and operations interfaces

Firm quotes are signed offchain and can update without spending gas. Once accepted, both sides settle through one atomic onchain transaction.

Current deployment

Setryn is live on Arbitrum Sepolia with 15 initial fixed-expiry markets across:

BTC/USD
ETH/USD
ARB/USD
EUR/USD
XAU/USD

Each underlying currently has December, March, and June expiries.

Built to expand

The initial 15 markets are not a protocol limit. Setryn’s versioned registries and configurable market architecture allow additional assets, expiries, benchmarks, collateral types, payoff structures, and execution modes to be introduced without rebuilding the exchange’s core settlement system.

Setryn is designed as a complete production-oriented exchange for dated risk, not a single trading feature or hackathon-only interface.

Progress During Hackathon

Setryn was designed and built end to end during the Buildathon period. We started with the dated-risk market thesis and developed it into a functioning exchange deployed on Arbitrum Sepolia. During the Buildathon, we completed: - The fixed-expiry instrument, collateral, risk, clearing, fee, lifecycle, and settlement contracts - Permissionless atomic settlement for signed firm quotes - Public order books, private RFQs, auctions, and maker-capacity infrastructure - Fifteen initial markets covering five underlyings and three expiries - Expiry-specific marks using Chainlink reference data - Real-time firm maker liquidity with twenty order-book levels - A complete professional trading terminal - Market discovery, portfolio, maker, treasury, status, and receipt interfaces - Wallet onboarding, test USDC funding, order authorization, and relayed execution - Persistent indexing, market-data ingestion, chart history, and operational services - A deployed contract graph passing 114 out of 114 runtime-code checks We also executed real collateral-backed trades through the production-style application flow. The resulting platform is not a mockup or isolated prototype: users can connect a wallet, obtain test collateral, inspect live markets, receive executable quotes, and settle trades on Arbitrum Sepolia.

Fundraising Status

Pre-funding. Setryn was built during the Buildathon and has not raised external capital yet. We are open to grants, strategic ecosystem support, and conversations with aligned investors.