ETH
Vol Index
Network
Unichain Sepolia
Live

Market Overview

Cross-chain realized volatility · Aggregated from Ethereum, Arbitrum, Base & BSC

ETH Spot
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Live · Binance
Vol Index
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On-chain oracle
Open Interest
0 active series
Vault TVL
0.0% utilized
Volatility Index — 48h Oracle History
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By Chain
Ethereum
35% weight
Arbitrum
30% weight
Base
20% weight
BSC
15% weight
Active SeriesLoading…
SeriesTypeStrikeExpiryPremiumOpen Interest
Reactive Network

Aggregates Uniswap V3 swap data from Ethereum, Arbitrum, Base, and BSC every block to compute a live cross-chain realized volatility index.

On-chain Black-Scholes

Option premiums are computed entirely in Solidity using WAD fixed-point arithmetic. No off-chain oracles or order books.

Automated Settlement

At expiry, Reactive Network cron triggers settleExpiredSeries(). ITM holders claim their payout — no keepers required.

Voltaire vs Traditional Options
Live comparison · 30-day ATM call · Strike $3,000 · Spot $
FeatureTraditional OptionsVoltaire (V4 Hook)
Volatility sourceImplied vol (opaque, set by market makers)Realized vol — 1152 samples/day, 4 chains
PricingOff-chain orderbook or AMM with spread markupOn-chain Black-Scholes — pure math, no markup
SettlementManual keeper bot (can fail, can be MEV'd)Automatic via Reactive Network cron — zero keepers
Manipulation riskSingle-chain vol can be flash-loan manipulatedRequires manipulating 4 chains simultaneously
Gas cost~$18 on Ethereum mainnet~$0.01 on Unichain
Counterparty riskExchange / protocol teamSmart contract only — fully trustless
TransparencyVol and pricing opaque / off-chainEvery calculation verifiable on-chain
Traditional IV estimate uses realized vol × 1.18 (realistic market maker spread for ETH options). Gas estimate for Ethereum mainnet ~$18 avg. All premium figures computed live via Black-Scholes with current oracle data.
Who Uses Voltaire
Five distinct user types and why each finds Voltaire better than alternatives
ETH Holder

Buy put options as portfolio insurance. Cap your downside without selling your ETH. Pay a small premium, protect against a 30-50% crash.

Defined risk. Keep upside. No liquidation.
Directional Trader

Leverage ETH exposure without the full capital requirement. A call option at 10% of ETH's price gives equivalent upside with capped downside.

10x capital efficiency. Max loss = premium paid.
USDC Yield Farmer

Deposit USDC into CollateralVault. Earn premiums from every option sold. Demonstrated 17.3% APY — far above stablecoin lending rates.

Passive yield. No impermanent loss. Withdraw anytime.
DeFi Protocol Treasury

Hedge ETH treasury exposure. Buy puts to protect against price drops. Cheaper than OTC, fully transparent, no counterparty risk.

Trustless. Auditable. On-chain accounting.
AI / Autonomous Agent

Voltaire is fully on-chain with no off-chain dependencies. An agent can autonomously hedge or speculate — no API keys, no broker accounts.

Zero human intervention. Programmatic settlement.