Crypto Trading Terminology: Essential Glossary from Beginner to Advanced

Language is the foundation of competence in any discipline. A surgeon who cannot name the structures they are working with cannot reliably describe what they are doing, communicate with colleagues, or learn from academic literature. The same is true for trading. A beginner who does not understand the difference between a limit order and a market order, or between spot and margin, will make definitionally expensive mistakes. An intermediate trader who cannot explain what funding rate means cannot correctly interpret conditions in the perpetuals market. This glossary is organised by complexity level — begin at the tier that matches your current knowledge and work forwards.

Tier 1: Essential Beginner Terms

Exchange. A platform where buyers and sellers of cryptocurrency transact. Centralised exchanges (CEXs) such as Coinbase, Kraken, and Binance hold your funds on your behalf. Decentralised exchanges (DEXs) such as Uniswap execute trades via smart contracts without a central custodian. The critical distinction is custody: a CEX holds your private keys, a DEX does not. See the common beginner mistakes course for why the custody distinction matters enormously in a crisis.

Wallet. Software or hardware that stores the cryptographic keys needed to control cryptocurrency. A hot wallet is connected to the internet (e.g., MetaMask, an exchange account). A cold wallet is offline (e.g., Ledger, Trezor). Your crypto does not actually live in the wallet — it lives on the blockchain. The wallet stores the keys that prove ownership and authorise transactions.

Spot market. A market in which you buy and sell actual cryptocurrency for immediate delivery. If you buy 1 BTC on the spot market, you own 1 BTC. This is the simplest form of crypto trading and the appropriate starting point for all new traders.

Market order. An instruction to buy or sell immediately at the best available price. Market orders guarantee execution but not price — in a fast-moving or illiquid market, you may receive a significantly worse price than you expected. This adverse effect is called slippage.

Limit order. An instruction to buy or sell only at a specified price or better. A limit buy order at $60,000 will only execute if Bitcoin reaches that level. Limit orders guarantee price but not execution — if the market never reaches your price, the order remains open.

Market capitalisation. The total value of a cryptocurrency calculated as current price multiplied by circulating supply. A token priced at $10 with 100 million circulating coins has a market cap of $1 billion. Market cap is a more meaningful size measure than price alone, which is why a $100 token can be “cheaper” in economic terms than a $0.001 token with 100 trillion supply.

Liquidity. The ease with which an asset can be bought or sold without significantly affecting its price. High-liquidity assets (BTC, ETH) can absorb large orders with minimal price impact. Low-liquidity assets (small-cap altcoins) move sharply on modest order sizes. Always factor available liquidity into position sizing.

Tier 2: Intermediate Trading Terms

Candlestick. A chart element that displays four data points for a given time period: the opening price, the closing price, the high, and the low. The rectangular body represents the open-to-close range. Green (or white) bodies indicate the close was above the open; red (or black) bodies indicate the close was below the open. The thin lines extending above and below the body are called wicks or shadows.

Support and resistance. Price levels where buying or selling pressure has historically been strong enough to stall or reverse price movement. Support is a level where price has repeatedly found buyers; resistance is a level where price has repeatedly found sellers. These levels are not precise numbers — they are zones. Broken support often becomes future resistance and vice versa, a concept known as polarity reversal.

Moving average (MA). The average price of an asset over a specified lookback period, updated with each new price bar. A 200-day simple moving average (SMA) averages the last 200 daily closing prices. Moving averages smooth out noise and help identify trend direction — price above the MA is broadly bullish; price below is broadly bearish. The exponential moving average (EMA) gives more recent prices greater weight, making it more responsive to recent price action.

RSI (Relative Strength Index). A momentum oscillator ranging from 0 to 100 that measures the speed and magnitude of recent price changes. Readings above 70 conventionally indicate overbought conditions; readings below 30 indicate oversold conditions. In strong trends, RSI can remain overbought or oversold for extended periods, which is why these levels should be treated as contextual signals, not automatic trade triggers.

Stop-loss. A pre-defined price level at which a losing position is automatically closed to prevent further loss. Setting a stop-loss before entering a trade is a non-negotiable risk management discipline. The free crypto trading calculators at DennTech let you model exactly how much capital you lose at different stop-loss distances before placing a trade.

Risk-to-reward ratio. The ratio of potential profit to potential loss in a trade. A trade risking $100 to make $300 has a 3:1 risk-to-reward ratio. Professional traders typically require a minimum of 2:1 before taking a trade, meaning that even a strategy with a 40% win rate can be profitable at a 2:1 ratio.

Leverage. The use of borrowed capital to amplify exposure. 10x leverage on a $1,000 account means you control a $10,000 position. A 10% adverse move at 10x leverage eliminates the entire account. Leverage magnifies gains and losses symmetrically. The leverage and liquidation mechanics course explains this fully before you consider any leveraged position.

Tier 3: Advanced and Professional Terms

Perpetual futures. A derivative contract that tracks the spot price of an underlying asset with no expiry date. Unlike traditional futures contracts that settle on a fixed date, perpetuals remain open indefinitely. The mechanism keeping perpetual price aligned with spot price is the funding rate — periodic payments between long and short holders. When the perpetual trades above spot, longs pay shorts; when it trades below, shorts pay longs.

Funding rate. The periodic payment exchanged between long and short holders in perpetual futures markets. A positive funding rate means longs pay shorts — indicating the market is broadly positioned long and the perpetual trades at a premium to spot. A negative funding rate means shorts pay longs — indicating bearish positioning. Extreme positive funding rates are a contrarian bearish signal in the short term; extreme negative rates are a contrarian bullish signal.

Open interest. The total value of all outstanding (not yet settled) derivative contracts in a market. Rising price accompanied by rising open interest suggests new money is entering the trend (confirmation). Rising price accompanied by falling open interest suggests short covering rather than genuine demand (caution). Open interest analysis pairs with volume to distinguish sustainable from fragile price moves.

Realised capitalisation. An on-chain valuation metric that assigns to each Bitcoin (or other asset) the price at which it last moved, approximating the aggregate cost basis of all current holders. Unlike market cap (price × total supply), realised cap is a bottom-up measure of actual invested capital. The ratio of market cap to realised cap is the MVRV ratio — high values (above 3.5) indicate the average holder is sitting on large unrealised gains and distribution is likely; values below 1 indicate the average holder is underwater, historically associated with bear market accumulation phases. For a deep dive, see the market cycles course.

Hash rate. The total computational power being applied to the Bitcoin mining network, measured in hashes per second. Rising hash rate signals miner confidence in future Bitcoin prices — miners invest in hardware only when they expect long-term profitability. Hash rate drops following price crashes indicate miner capitulation (economically marginal miners shutting down), historically a lagging confirmation of bear market bottoms.

Basis. The difference between the price of a futures contract and the spot price of the underlying asset. When futures trade above spot (contango), the basis is positive and represents an implied yield available to cash-and-carry arbitrageurs. When futures trade below spot (backwardation), the basis is negative, typically indicating bearish market sentiment or spot supply pressures. Understanding basis is essential for derivatives traders and anyone evaluating funding rate arbitrage strategies. The complete advanced course track covers basis trading mechanics in depth.