Orderbook depth, not an LP curve
Every strike has its own DeepBook orderbook with real bids and real asks. You see depth, you fill at price, you do not pay a curve.
Phasis · testnet
Institutional-grade options trading,
native to Sui.
A central-limit-orderbook options venue built on DeepBook. Real depth per strike. Visible IV surface. USDC cross-margin. No liquidity-pool curve to hide spread in.
BTCJun 27, 2026Live preview · click Launch app to trade
Callsspot $67,420 · 33d to expiryPuts
| Bid | Mark | Ask | IV | Strike | IV | Bid | Mark | Ask |
|---|---|---|---|---|---|---|---|---|
| $0.1331 | $0.1351 | $0.1371 | 97.1% | $60,000 | 99.1% | $-0.0020 | $0.0000 | $0.0020 |
| $0.1034 | $0.1054 | $0.1074 | 87.1% | $62,000 | 89.1% | $-0.0020 | $0.0000 | $0.0020 |
| $0.0737 | $0.0757 | $0.0777 | 77.1% | $64,000 | 79.1% | $-0.0020 | $0.0000 | $0.0020 |
| $0.0441 | $0.0461 | $0.0481 | 67.1% | $66,000 | 69.1% | $0.0019 | $0.0039 | $0.0059 |
| $0.0144 | $0.0164 | $0.0184 | 62.9% | $68,000 | 64.9% | $0.0316 | $0.0336 | $0.0356 |
—Total value locked
—Cumulative testnet volume
—Contracts open interest
—Series live across BTC / ETH / SUI
Built with the Sui ecosystem
SuiDeepBookPythMysten LabsWalrus
What is different
Volatility surface visible per series
Each row shows bid IV, ask IV, mark IV. The market prices volatility on screen, you do not infer it from a fee.
One account funds everything
Single USDC collateral spans every position. Margin re-runs at each new leg, locks only what the worst-case stress demands.
Integrated with the Sui stack
Phasis settles on Sui Move smart contracts, routes through DeepBook for orderbook depth, and prices off Pyth oracles. No bridges, no wrapped assets, no foreign escape hatch. Sub-second finality.
DeepBook v3Pyth oraclesSui Wallet StandardMove on Sui
Maker program
Higher rebate ceiling for verified makers
Up to 256 open orders, dedicated maker-side rebates, direct support during testnet. Apply via the Phasis maker channel.
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