Understanding Perp Metrics
Master the data behind the charts. Learn how to interpret Open Interest, Trading Volume, and Oracle Prices to make informed trading decisions.

Key takeaways
- Open Interest is the total number of outstanding perpetual contracts not yet settled, and rising OI alongside a rising price signals new money confirming a bullish trend.
- Volume measures how much was traded over a period while liquidity, shown by orderbook depth, measures how easily you can enter or exit without moving the price.
- Mark Price drives liquidations and is built from the Index Price (the average spot price across major exchanges) plus a decaying funding basis to block manipulation.
- Because Hyperliquid is a transparent Layer 1, every trade, liquidation, and funding payment is public, letting traders verify whale activity against a global orderbook.
Open Interest (OI)
Unlike spot trading where only "Volume" matters, perpetual trading introduces Open Interest. This represents the total number of outstanding derivative contracts that have not been settled.
Market Sentiment
Volume vs. Liquidity
Volume tells you how much has been traded in a specific timeframe (e.g., 24h). Liquidity tells you how easily you can enter or exit a position without moving the price.
Trading Volume
The total dollar value of all trades executed. High volume usually means more price action.
Orderbook Depth
The "thickness" of buy and sell orders. Deep orderbooks mean less slippage for large trades.
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Oracle and Mark Price
Perpetual exchanges use a multi-price system to prevent "flash liquidations" caused by temporary price spikes on a single exchange.
- Index Price: The average spot price of the asset across major exchanges (Binance, Coinbase, etc.).
- Mark Price: The price used for calculating liquidations. It is based on the Index Price plus a decaying funding basis.
- Oracle Price: The decentralized price feed provided by the network to ensure fairness.
On-Chain Data Analysis
Because Hyperliquid is a transparent Layer 1 blockchain, every trade, liquidation, and funding payment is public. Professional traders use this data to spot institutional moves and "whale" activity before it reflects on the retail charts.
Transparency Benefit
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Related topics
Keep Learning
Risk Warning: Trading perpetual futures involves significant risk of loss. Only trade with capital you can afford to lose. Dexly is a non-custodial interface; you are responsible for your own funds and trading decisions.
Frequently Asked Questions
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