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Trading glossary: order book, open interest, funding, liquidations

6 min · DYOR Education
Goal

Fix the words that appear on every following screen: order book, depth, delta, OI, funding, liquidation, option and the rest.

Words that come up on every screen. Order book, bids, asks and trades were on the previous screen — here they sit next to the rest. Read it once; you can come back any time.

78,20078,00077,80077,60077,400current price 77,30077,20077,00076,80076,60076,400askssell ordersbidsbuy orderswidth = how muchmoney is resting1.5%3%5%depth —how many % of priceto cover3% includes all of 1.5%
Order book: asks above the price, bids below it. Depth is how many percent from the price to cover; 3% includes everything within 1.5%.
Order bookThe list of limit orders. Bids (buy) sit below the price, asks (sell) above.
Bid / askA buy / sell order. DYOR counts them in dollars.
Limit / marketA limit order sits in the order book and waits for its price. A market order fills immediately against the order book.
Taker / makerA taker fills with a market order, a maker places a limit order. “Buys” and “sells” in trade indicators are takers.
DepthDistance from the current price in percent. A 3% depth is all asks from the price up to +3% and all bids from the price down to −3%. DYOR counts seven depths: 1.5 · 3 · 5 · 8 · 15 · 30 · 60%; each one includes the ones before it.
BarOne candle on the chart. On the 15m timeframe a bar is 15 minutes. Indicators compute a value for each bar.
DeltaThe difference between two values. Trade delta is buys minus sells; order book delta is bids minus asks.
Spot / futuresSpot is buying the coin itself. A futures contract is a contract on the coin’s price, traded with leverage. Most indicators have a “Market” switch: Spot or Futures.
Long / shortA long is a position betting on a rise (you bought). A short bets on a fall (you sold borrowed coins to buy them back cheaper).
Leverage / marginLeverage is a position bigger than your own money; the exchange covers the difference. Margin is your own money behind that position.
OIOpen interest: the total of all open futures positions right now.
FundingA periodic payment between longs and shorts on a perpetual futures contract. On Binance every 8 hours; on Hyperliquid and Deribit the rate is shown per 1 hour (in AGG. FUNDING it is multiplied by 8). The sign of the rate shows who pays.
LiquidationThe exchange force-closes a position when the margin no longer covers the loss.
StablecoinA coin pegged to the dollar: USDT, USDC.
Inverse contractA futures contract whose collateral and result are counted in the coin itself, not in dollars: BTC/USD on Deribit. A linear one is collateralised in USDC or USDT: BTC/USDC, BTC/USDT.
OptionThe right to buy (call) or sell (put) a coin at a named price before a named date. The buyer pays a premium for the right.
IVImplied volatility: the size of the price move built into option prices, in percent per year. The more expensive the options, the higher the IV.
ClusterTrade volume inside one candle broken down by price: how much was bought and sold at each price. The “Clusters” chart type.
DivergenceA disagreement between price and an indicator: price made a new low and the indicator did not, or the other way round. A tab in the indicator settings and an operator in alerts.
COIN / TOTALCOIN is data for the coin on the chart. TOTAL is the sum across all coins on the market. It gets its own screen later.
Try it yourself
  1. Open the coin search in the top left.
  2. Find BTC/USDT on spot and BTC/USDT on futures — they're two different rows.
What you should get. You can tell spot from futures in the interface: futures have OI and funding, spot doesn't.
Takeaway

Order book: orders that wait. Trades: what got filled. Depth: distance from the price in percent. Delta: the difference between two sides. You can come back to this table from any screen.

Quick check

“Bid at 3% depth” is…

Show answer

Correct answer: The sum of buy orders from the price down to 3% below it

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