Glossary
| Term | Meaning |
| Amount | The USDG you enter on the ticket. Sets position size with leverage and caps what you are charged |
| Arbitrum | The Ethereum layer-two network Isometric launches on. Arbitrum One is the main network and Arbitrum Sepolia the testnet |
| Breakeven | The settlement price at which a position pays back exactly what it cost. Shown as Profit above or Profit below |
| Capped at | For a long, the price past which the payout stops growing, shown on an open position. A short shows Floored at |
| Chainlink | The oracle network whose BTC/USD feed prices and settles every position |
| Claim | Taking a payout, or filled shares or USDG from a pool request, that is waiting for you |
| Claimable | A settled position with a payout waiting. It is usually paid automatically, and you can claim it yourself |
| Contracts | The size of a position in units of the market's asset |
| Cutoff | Ten minutes before an hourly fill. A pool request sent after it joins the next fill, and cannot be cancelled once passed |
| Demo mode | The app running with simulated funds. No wallet, gas, or chain needed |
| Direction | Long or short |
| Estimate | A pool figure taken from the last hourly fill. Your own request fills at the price set when its hour closes |
| Expired | A settled position that paid nothing |
| Expiry | The settlement time. Used interchangeably with settlement in these docs |
| Fill | The hourly moment the pool sets one share price and completes every deposit and withdrawal request that arrived in time |
| Funded claim | A payout the pool has set aside for winners. It cannot be used for anything else |
| Keeper | A worker that settles expiries, closes hourly fills, records volatility samples, and pushes payouts. Anyone can do the same |
| Leverage | Position size divided by your amount. Sets the size and places the target. Never a liquidation price |
| Long | A position that pays if the settlement price is above the worthless price |
| Max loss | Your amount, paid at open with the trading fee included. The most a position can ever lose. Shown on the ticket |
| Max payout | The most a position can pay, fixed when it opens |
| Pool | The USDG vault that takes the other side of every trade in one market and pays depositors the premium |
| Position size | Your amount times leverage, or a little more. Your exposure |
| Premium | What a trader pays for a position. The pool's only income |
| Push failed | The automatic payment to your wallet failed. The payout still waits for you to claim, to any address |
| Request | A deposit or withdrawal waiting for the next hourly fill |
| Returned shares | The part of a withdrawal request the pool could not fill. Claim them and request again |
| Robinhood Chain | Robinhood's layer-two network, built on Arbitrum. Isometric runs on it alongside Arbitrum One |
| Series | All positions with the same direction, target, cap, and settlement hour. Settled together |
| Settlement | The moment one oracle price fixes the outcome of every position at a given hour |
| Settles | The date and hour a position ends. Shown on the ticket |
| Settling | A position past its settlement hour whose price has not yet been recorded |
| Share | Your stake in a pool. A token whose price is set at each hourly fill |
| Share price | What one pool share is worth: the pool's USDG minus the value of open positions, per share |
| Short | A position that pays if the settlement price is below the worthless price |
| Strike | The options term for the worthless price |
| Term | How long a position runs. 1, 3, 7, or 30 days |
| Timelock | The contract that owns upgrades. A proposed upgrade waits in it, in public, before it can take effect |
| USDG | Global Dollar, the dollar stablecoin used to pay for positions, pay winners, and fund pools |
| Utilisation | The share of a pool set aside against open positions. Capped |
| Worthless at or below | For a long, the price at or below which the position pays nothing. Shorts show Worthless at or above |