ParamX
Live on Sui mainnet · view the exchange contract

Grid Options for crypto, US equities and futures, onchain.

ParamX is a self-custodial exchange for Grid Options: short-dated contracts on where a price trades. Every Grid Option is fully collateralized in USDC and settles onchain on Sui.

Launch app Read the documentation
BTC Grid Optionexample
now $89,000–$89,500
Underlying
BTC / USD
Range
$89,000–$89,500
Window
14:00–15:00 UTC
Payout
$1.00 per share if traded in range
Collateral
$1.00 per share, locked in USDC
Settlement
Onchain, after the window

ParamX in numbers

Built to quote every market, all the time.

21Listed marketsCrypto, US equities, CME futures
~9,000Quotes refreshedEvery 10 seconds
0.00%Maker fee0.30% taker
100%Collateralized$1 USDC per share, onchain

Verifiable

Positions, collateral and settlement live in a public Move contract on Sui. Anyone can check them.

Self-custodial

Sign in with Google and hold your own Sui wallet through zkLogin. Every order is signed on your device.

Fully collateralized

Each share is backed by $1 of USDC locked when the trade happens, so every payout is funded in advance.

Professional infrastructure

A Rust order book and market maker, real-time exchange data, and a public API for trading firms.

How it works

One square on the price chart.

A Grid Option is one square on the price chart, a price range over a time window, and it asks one question: does the price trade inside this range during this window? It pays $1 per share if it does and nothing if it doesn't, so the most you can lose is what you paid.

  1. Choose a market and a window5-minute, 1-hour and 1-day windows on crypto, US equities and CME futures.
  2. Choose a price rangeThe order book shows the bid and ask for every range. The price reflects the market's view of the probability.
  3. Trade from your own walletOrders are signed on your device and matched by the exchange. Collateral is locked onchain.
  4. Settle onchainWhen the window closes, the contract settles against exchange price data and pays out in USDC.

Security and transparency

Everything that matters is public.

The contracts, the price sources and the trading rules are published, so you can check how ParamX works instead of taking our word for it.

Exchange contract0xce8d89755c389560ae472dff248f0cb9a4f9142ba907f8fd9c721d9df30edeecSuiscan ↗
Move package0x60f883f926a6b3372285d8e0fccb236f6e126b964210ccfcd82af5836f7a8ed7Suiscan ↗
Price dataCoinbase for crypto; Massive for US equities and CME futuresMethodology ↗
Contract interfaceThe exchange's Move types, signed message formats and functionsGitHub ↗
Trading APIREST and WebSocket API for market makers and trading firms, with a Rust client and a Nautilus Trader adapterGitHub ↗

Partnerships

Market makers, integrators and sponsors.

We work with trading firms, Sui ecosystem teams and data providers. Write to us to talk about working together.