7 min read A crypto spread is the difference between the bid price, where you can sell a coin, and the ask price, where you can buy it. It’s the cost built into every crypto trade, paid the moment you enter. Crypto spreads tend to run wider and swing more than forex or stock spreads, for reasons that are specific to how crypto markets are built.
What a crypto spread is
Every coin shows two prices: the bid, the most a buyer will pay, and the ask, the least a seller will take. The gap between them is the spread, and it’s the first cost you meet. Say Bitcoin shows a bid of $99,950 and an ask of $100,000. The spread is $50, or 0.05% of the price. Buy one BTC and you pay the $100,000 ask; sell it back instantly and you get only the $99,950 bid, so you’re down $50 before the market moves at all.
Because coin prices range from cents to tens of thousands of dollars, crypto spreads are usually read as a percentage rather than an absolute number. That $50 on Bitcoin is tiny in relative terms; the same $50 gap on a coin priced at $5 would be enormous. The percentage is what lets you compare one coin, or one moment, against another. The same bid-ask logic runs through every market, covered in the spread in trading guide.
Why crypto spreads run wider
Crypto produces some of the widest spreads in trading, and three features of the market explain why.
First, crypto has no single price. Unlike forex, which draws on one deep global pool, crypto trades across many separate venues, each with its own order book. The same coin can show a different bid and ask in different places at the same moment, which is why arbitrage between venues exists at all, and why no single spread is the spread. Second, crypto is volatile. When prices move fast, market makers widen the gap to protect themselves against being caught on the wrong side, so spreads balloon exactly when the coin is moving most. Third, it comes down to liquidity per coin. A coin with heavy, constant volume keeps the bid and ask close; a thinly traded one leaves a wide gap because few orders sit on the book. Crypto also trades 24/7, so there’s no daily close to reset liquidity, and the quiet hours still see spreads drift wider.
Bitcoin and the majors vs altcoins
The split inside crypto is stark. Bitcoin and Ethereum carry the tightest spreads in the asset class, often a fraction of a percent, because they attract the deepest, most constant demand. Drop down the market cap and the gap widens quickly: a mid-tier altcoin might cost half a percent or more to enter and exit, and a small, obscure token can cost several percent on the spread alone, before any fee. For a freshly launched coin with almost no volume, the spread can be so wide the market is barely tradable. The rule is the same one that governs every market: the more liquid the coin, the tighter the spread.
Spread vs slippage: not the same thing
Crypto traders often blur the two, but they’re distinct. The spread is the gap between bid and ask right now, before you trade. Slippage is the difference between the price you expected and the price you actually got, and it shows up when your order is larger than the volume sitting at the best price. Place a big market order into a thin book and it “walks the book,” filling at progressively worse prices, so you pay the spread plus slippage on top. A wide spread is usually a warning that slippage will be worse too, since both come from the same shallow liquidity.
The spread isn’t your only crypto cost
The spread is the quiet cost; it’s rarely the only one. Spot exchanges typically add a maker or taker fee on every trade, charged separately from the spread, plus network or withdrawal fees to move coins. If you trade crypto as a CFD instead of buying the coin outright, you’ll usually pay an overnight financing fee to hold a leveraged position rather than those on-chain costs. Either way, the number that matters is the all-in total, the spread plus every fee stacked on it, which is the same principle laid out in spread vs commission vs swap.
How to keep crypto spreads low
You can’t remove the spread, but you can avoid the worst of it. Stick to liquid majors like Bitcoin and Ethereum, where spreads are tightest; they sit near the top of the assets with the tightest spreads. Trade during peak hours, when European and US activity overlaps and order books are deepest. Use limit orders instead of market orders so you set your own price rather than crossing whatever spread is on offer. And treat a wide spread as the warning it is: on a low-volume coin, the spread alone can turn a good idea into a losing trade. For a sense of how this compares with currencies, the forex spread and the cross-asset bid-ask spread guides are worth a look.
Trade Bitcoin, Ethereum, and more on PrimeXBT from one account, or see how the platform approaches its spreads.
Trading involves risk.
What is a spread in crypto trading?
It's the difference between the bid price (where you can sell a coin) and the ask price (where you can buy it). The gap is the built-in cost of the trade: you buy at the higher ask and can only sell at the lower bid, so a position starts slightly down by the size of the spread.
Why are crypto spreads wider than forex spreads?
Because crypto liquidity is fragmented across many separate exchanges instead of one deep global market, and most coins trade far less volume than major currencies. Add crypto's higher volatility, which pushes market makers to widen their quotes, and the gap between bid and ask ends up larger and more variable.
Which crypto has the tightest spread?
Bitcoin, followed by Ethereum. As the most heavily traded coins, they have the deepest liquidity and the smallest spreads in the asset class, often a fraction of a percent. Smaller and lower-volume altcoins have much wider spreads.
Is the spread the same as slippage?
No. The spread is the gap between bid and ask before you trade. Slippage is the difference between the price you expected and the price you actually received, which happens when your order is too big for the volume at the best price. Wide spreads usually mean more slippage as well.
How can you reduce crypto spread costs?
Trade liquid major coins, use limit orders rather than market orders, and trade during peak hours when order books are deepest. Avoid low-volume coins, where the spread can be wide enough to wipe out a trade's edge on its own.
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