Perpetual Contract
A futures contract without an expiration date, allowing you to hold a position indefinitely.
Unlike traditional futures, these are the most common instruments for crypto trading, anchored to the spot price via funding rates.
Funding Rate
Periodic payments made between long and short traders to keep the contract price aligned with the index (spot) price.
If the rate is positive, longs pay shorts. If negative, shorts pay longs.
Liquidation
When your position is forcefully closed by the exchange because your margin can no longer support the losses.
If price hits your liquidation point, the exchange takes over your position to prevent the account balance from going negative.
Mark Price
The estimated true value of a contract, used to calculate unrealized PnL and trigger liquidations.
Exchanges use this to prevent price manipulation and unfair liquidations from "wicking" on a single exchange.
Index Price
The average spot price of an asset across several major spot exchanges.
The "real" market price used to calculate the funding rate and keep the perpetual contract in line.
Open Interest
The total number of outstanding derivative contracts that have not been settled.
High open interest combined with a price move often indicates a strong trend continuation or an imminent squeeze.
Deleveraging (ADL)
An automatic mechanism that reduces the positions of highly profitable traders to cover the losses of bankrupt accounts.
This is a "safety valve" during extreme volatility to ensure the exchange remains solvent.
Basis
The price difference between the current spot market price and the futures contract price.
A positive basis means the futures price is higher than spot (Contango); a negative basis means it is lower (Backwardation).
Long Squeeze
When falling prices force long traders to liquidate, creating a cascade of selling that drives the price down even further.
A rapid downward move triggered by the forced exit of over-leveraged long positions.
Short Squeeze
When rising prices force short traders to buy back assets to close their positions, causing an even sharper price spike.
"Shorts getting squeezed" is a common phrase when price action moves violently upward against heavily shorted positions.
Ticker
The short, unique symbol that identifies a specific asset (e.g., BTCUSDT).
You trade via these tickers to ensure you are operating on the correct pair.
Contango
A market state where the futures price is higher than the expected spot price.
Often seen in bull markets where buyers are willing to pay a premium for future delivery.
Backwardation
A market state where the futures price is lower than the spot price.
Often indicates a supply shortage or strong demand for immediate delivery.
Premium/Discount
The percentage difference between the futures contract price and the mark price.
A premium means the contract is trading above the index price; a discount means it is below.
Expiration Date
The date on which a non-perpetual futures contract settles and ceases to exist.
Unlike perpetuals, dated futures require you to close or roll your position before this time.
Settlement
The process of fulfilling the obligations of a futures contract at expiration.
In crypto, this is usually cash-settled, meaning profit/loss is automatically adjusted in your account balance.
Derivatives
Financial products (like futures) whose value is "derived" from an underlying asset, like Bitcoin or Ethereum.
You don't own the underlying coin; you own a contract that tracks its value.
Hedging
Taking an offsetting position to reduce the risk of adverse price movements in another holding.
You might go short on futures to protect your spot Bitcoin holdings during a market downturn.
Stop-Limit Order
A combination of a stop order and a limit order; it triggers a limit order only when a specific price is hit.
You set a stop at $50 and a limit at $49.50; if price hits $50, an order to sell at $49.50 is placed.
Funding Payment
The actual transfer of capital between traders based on the funding rate.
Occurs every 8 hours (or as set by the exchange) in perpetual contracts.