Glossary

One short definition per term. Each links to the page with the full story.

Balances

Total

Everything you hold on Prow, in USD: your trading accounts (perps account value plus spot, on every connected venue) and your prediction accounts. It is the big number at the top of Portfolio. More

Perps account value

Your perps balance on one venue, including unrealized PnL on open positions. Trade's account card shows it as Equity. More

Equity

Another name for perps account value. Trade's account card shows Margin used as a share of it, for example "41% of $31,420.18". More

Available to trade

The margin a new perps order can use right now. Trade's account card shows it, and the ticket's venue list shows it per venue, for example $905.10 available. Spot funds are not included. More

Margin used

The margin your open positions lock. On Aster it also includes margin held by open orders. Portfolio's By venue shows it per venue as Margin. More

Withdrawable

What can leave the venue right now. The venue works it out, and it is often lower than Available to trade. The Withdraw window shows it. More

Unified account

A Hyperliquid account mode where one USDC balance pays for perps and spot. There is nothing to move between them. More

Multi-Assets mode

An Aster account setting. When on, tokens like BNB, ETH or BTC count as perps margin. When off, only USDT does. More

Haircut

The discount Aster applies to non-stable collateral like BNB when it works out your margin. Prow's balance shows the full value, at Aster's index price. More

Trading

uPnL

Unrealized profit and loss. What an open position would gain or lose if you closed it at the mark price now. More

ROE

Return on equity. uPnL as a percent of the margin you put into the position. With leverage it moves faster than the price. More

Mark price

The fair price the venue uses for uPnL, liquidation and TP/SL triggers. It can differ a little from the last trade price. More

Index price

An average of the spot price on several exchanges. Venues use it to set the mark price and funding. Prow uses Aster's index price to value collateral like BNB. More

Liquidation price

The mark price at which the venue closes your position because the margin is no longer enough. More

Funding

A small payment between longs and shorts while a position is open. Hyperliquid settles it every hour, Aster every 1 to 8 hours. More

Reduce-only

An order that can only make a position smaller. It never opens or flips one. More

Fees and keys

Builder fee

The venue's name for a fee an app may add to your trades. You approve it once with your wallet. In Prow it is called the Prow fee: 0% until Dec 31, 2026, then 0.025% per trade. Bets on Hyperliquid and Polymarket carry 1% from Jan 1, 2027, and Hyperliquid asks for one more approval. More

Trading key

A key made on your device that signs orders for you. It can trade, never withdraw. Hyperliquid calls it an agent or API wallet. Aster calls it an API wallet. More

Main wallet

The wallet that owns your venue account. Only it can deposit, withdraw, transfer or approve a trading key. More

Prow wallet

The wallet Prow creates for you when you sign in without one of your own, or when it makes you a Polymarket or predict.fun account. It can own your venue accounts, and it signs your bets on Polymarket and predict.fun with no pop-ups. More

Predictions

Share

One unit of an outcome. A share of the outcome that happens pays $1 when the market settles, and a share of any other outcome pays $0. More

Chance

A share's price read as a probability: 62¢ means the market puts the outcome at about 62%. More

Market bet

A bet that fills now at the best prices on the book, never worse than the price cap shown on Details. More

Limit bet

A bet at a price you choose. It waits on the book until it fills or you cancel it under Orders. More

Price impact

How far your own bet moves the price as it takes shares from the book. Details lists it over 1%, and over 5% the Details row turns amber. More

Settlement

When a venue decides which outcome happened. Each share of that outcome then pays $1, and every other share pays $0. More

Claim

Moving a winning bet's payout into your cash on the venue. Hyperliquid pays by itself, while Polymarket and predict.fun need a claim. More

Dispute (UMA)

A challenge to a result proposed through UMA's oracle on Polymarket and predict.fun. It must come within the challenge window, 2 hours on Polymarket unless the market says otherwise, and a disputed result goes to a UMA vote. More

Deployer

On Hyperliquid, the team that lists an outcome market, such as outcome.xyz, Trade[XYZ] or Skew. It settles its market alone, with no dispute window. More