Contract Term Reference

Welcome to our detailed guide on the contract terms you'll encounter on our platform. Let's dive in!

Basic Terms

Index Price

The average price of the digital asset in question.

Underlying Asset

The digital asset (e.g., Bitcoin, Ethereum) from which the price for a Futures or Perpetual Contract is set.

Market Price

The latest, most up to date transaction price for an asset.

Understanding Prices

Mark Price (also known as Mark-to-Market or MTM)

A calculated "fair price," taking into account various market factors.

Why it matters:

  • Used to calculate unrealized Profit and Loss (P&L).

  • Used to determine the probability of liquidation.

  • Used to safeguard against market manipulation.

Learn More: Mark Price Calculation FAQ

Spot Price

The current market price for immediate trades.

Notional Value

The total value of the position you hold, calculated as follows:

Notional Value = Current Mark Price x Position Size x Contract Size

Example: If you have 100 BTC contracts at a Mark Price of $4020, your Notional Value is $402.

Position-Related Terms

Contract Size

The fraction of the underlying asset each contract represents. For us, it's 0.001 of the asset.

Position Size

The number of contracts you're trading.

Types of Positions

Long Position / Buy Position: Buying first to sell later.

Example: Owning 100 BTC contracts means you hold a long position.

Short Position / Sell Position: Selling first to buy back later.

Example: If you've sold 100 BTC contracts, you're in a short position.

Entry Price

The initial price at which you bought or sold to open your position.

Leverage and Risk


The ratio of the initial margin to the order value. Higher leverage means higher risk but lower initial costs.


With 100x leverage, the initial margin is just 1% of the order value.

With 1x leverage, the initial margin is 100% of the order value.

Risk Limit

A set of rules designed to minimize large liquidations.

Learn More: How to Read Your Margin and Leverage Tabs

Margin Terms

Initial Margin

The minimum amount you must have to open a position.

Maintenance Margin

The minimum amount you must maintain to keep your position open. Failure to do so triggers liquidation of your position.

Cross Wallet

 Enables multiple digital currencies to serve as margin.

Note: 10% of the digital asset value is held as collateral.

Isolated Wallet

Only one type of digital currency can serve as margin for one type of contract.

Note: 10% of the digital asset value is held as collateral.


Liquidation Process

What happens:

  • The system takes over your position and associated margin.

  • A forced market buy/sell occurs between the liquidation and bankruptcy prices.

  • Extra margin from the BTSE insurance fund may be used.

  • If still not closed, Auto-Deleveraging (ADL) occurs.

Liquidation Price

The price at which liquidation is triggered.

Bankruptcy Price

The price at which your margin balance becomes zero.

Auto-Deleveraging (ADL)

A process to close positions when liquidation fails.

ADL Indicator 

This shows your likelihood of being auto-deleveraged.

Profits and Losses

Unrealized P&L

Current profit or loss that isn't finalized until your position is closed.

Realized P&L

Profit or loss you've actually made when your position is closed.

Other Important Terms

Market Makers

Provide buying and selling options to maintain liquidity.

Funding Fees

Payments made between Long and Short positions. Example here

Basis / Basis Differential

The difference between the Spot Price and the Entry Price of the contract at expiration.

Bid / Ask Price

The price a buyer is willing to pay (Bid) and the price a seller is asking for (Ask).

Still need help? We're here to support you anytime Contact Us
Your Favorite Crypto Exchange Professional, Secure, and Trustworthy Get Started