Trading
| Term | Definition |
|---|---|
| Share | A contract that pays $1 if the outcome is correct, $0 otherwise |
| Yes/No | The two sides of a binary prediction market |
| Orderbook | The list of open buy and sell orders at various prices |
| Spread | The difference between the best bid and best ask price |
| Midpoint | The average of the best bid and best ask price |
| Limit order | An order to buy or sell at a specific price or better |
| Market order | An order that fills immediately at the best available price |
| GTC | Good-Til-Cancelled — an order that stays on the book until filled or manually cancelled |
| Resolution | When a market’s outcome is determined and shares are settled |
| Collection | A group of related markets displayed on a single page — round-based (5-min), series (NBA), or single-event |
Platform
| Term | Definition |
|---|---|
| Noma ID | Your unique identity with a public profile at noma.xyz/id, displayed on leaderboards and profiles |
| Attest | Noma’s permissionless market creation system where anyone can propose and fund a prediction market |
| Backer | A user who contributes funds to an Attest market during its funding phase |
| Fund | A permissionless pool where a manager trades on behalf of depositors |
| Pulse | A social board for curating markets and competing with friends |
| Matching Engine | Noma’s three-layer pipeline (structural, AI classification, embedding similarity + AI confirmation) for linking equivalent markets across providers |
| Market Link | A verified connection between two markets on different providers representing the same bet |
| Gasless | Transactions where noma covers the gas fee — you only sign, never pay for execution |
Infrastructure
| Term | Definition |
|---|---|
| Embedded wallet | A non-custodial wallet created automatically by Privy when you sign in |
| Trading Safe | Your Polygon smart contract wallet (Gnosis Safe) deployed by noma for gasless, secure trading |
| EOA | Externally Owned Account — a standard wallet controlled by a private key |
| USDC.e | Bridged USDC on Polygon — the collateral token used for Polymarket trading |
| NAV | Net Asset Value — the total value of a Fund’s holdings |
| High-water mark | The highest NAV a Fund has reached, used to calculate performance fees |
Providers
| Term | Definition |
|---|---|
| Polymarket | The largest decentralized prediction market, operating on Polygon |
| Kalshi | CFTC-regulated event contracts exchange |
| DFlow | On-chain protocol on Solana that brings Kalshi’s orderbook on-chain |
| CTF | Conditional Token Framework — the ERC-1155 token standard used by Polymarket for prediction shares |
| CLOB | Central Limit Order Book — the order matching engine used by Polymarket |
| Chainlink | Decentralized oracle network used for on-chain price feeds and auto-resolution |
| UMA | Universal Market Access — the decentralized oracle used for resolving disputed markets |
| AMM | Automated Market Maker — a smart contract that provides liquidity and sets prices algorithmically |
Still have questions?
Check the FAQ for answers to the most common questions about noma.