Started at 1,000. Stablecoins and gold tokens excluded. Members are the ten largest coins at each update, and the divisor adjusts when they change so the line stays continuous.
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Bitcoin halving
Every 210,000 blocks, the reward for mining new Bitcoin is cut in half.
Calculators for prices, market caps, history and risk, using live data.
History
Past investment
What money put into a coin on a past date is worth today.
Your investmentSame money in BitcoinMoney put in
Steady buying
DCA simulator
Buying a fixed amount on a schedule, compared with putting it all in on day one.
Steady buyingAll on day oneMoney put in
Reality check
Price target
What a target price would mean for a coin's market cap.
Converter
Convert
Any coin to dollars or to another coin, at live prices.
Head to head
Compare coins
Side-by-side price, size, supply and performance.
Market cap comparison
What if
The price a coin would have with another coin's market cap.
Flippening watch
Closest races
Neighbours nearest to swapping rank (stablecoins excluded).
Dominance
Market share
Share of total crypto market cap.
Profit & loss
Return check
What a past buy is worth at today's price.
Risk
Position size
How much to buy so a stop-out loses only what you choose.
A stop-loss isn't guaranteed. Gaps and slippage can fill past your stop and make the loss bigger.
Supply
Dilution check
Circulating vs. maximum supply, and the cap if every coin existed.
Investing
Average cost
Your weighted average price across several buys.
Investing
Break-even
The selling price that gets your money back after fees.
Risk
Comeback
The gain needed to recover from a drop.
Start
After drop
Investing
Rebalancer
Trades needed to get back to your target mix.
Coin
Now
Target %
Trade
Today's crypto prices by market cap
How do liquidity and slippage affect a trade?
The price on the screen is a promise only for a small order.
Ask for more and the market fills you at worse and worse prices, because there just aren't enough sellers waiting at the first one. That gap between the price you saw and the price you paid is slippage.
Why big orders move the price
A big order in a thin market eats through sellers at higher and higher prices. The same order in a deep market barely moves the price.
An exchange matches buyers and sellers through an order book, which is a list of offers to buy below the current price and offers to sell above it. A small order fills at the best price. A large order eats through several levels and gets a worse average price.
Deep markets have many offers close to the current price, so even large orders barely move it. Thin markets, common for small coins, can move several percent on a modest order.
Decentralized exchanges work differently, using pools of tokens instead of order books, but the idea is the same. The bigger the trade compared with the pool, the more the price moves against you.
A worked example
You want to buy $50,000 of a small coin at $1.00. Sellers are offering $5,000 at $1.00, $7,000 at $1.01, $10,000 at $1.025, and so on up. A market order takes them in order, and your average price ends up near $1.034, about 3.4% worse than you expected.
In a deep market, the same order might fill within a cent or two of the starting price.
How to check liquidity before you trade
On an exchange, look at the order book and see how much sits within 1 or 2 percent of the price. On a decentralized exchange, the swap screen shows the price impact before you confirm.
As a rough rule, if your order is more than a small fraction of what's available near the price, split it up or use limit orders.
Price impact in a pool, worked out
In a 100,000 by 100,000 pool, the average price rises with trade size, from 1% worse on $1,000, 10% on $10,000 and 25% on $25,000, before fees.
Most decentralized exchanges use a constant product pool, where the number of one token multiplied by the number of the other must stay the same after every trade. Picture a pool holding 100,000 USDC and 100,000 of a token, so the price is $1.00 and the product is 10 billion.
Spend $10,000 and the pool now holds 110,000 USDC. To keep the product at 10 billion it can only hold 90,909 tokens, so you receive 9,091. Your average price is $1.10, 10% above the starting price. Spend $1,000 instead and you get 990 tokens at about $1.01. Spend $25,000 and you get 20,000 tokens at $1.25. Before fees, the impact is roughly your trade size divided by the pool's size on that side, and it grows faster than that as trades get larger.
The pool's price after your trade also moves, to 110,000 divided by 90,909, or about $1.21. The next buyer starts from there unless arbitrage traders bring it back toward other markets. Fees, often 0.3% on a basic pool, come on top. This is why swap screens show a price impact percentage, and why a figure above a few percent is a reason to trade less or look for a deeper pool.
What slippage tolerance actually does
Tolerance is a floor, not a fee. At 1% on a 1,000-token quote you get at least 990 or the swap cancels; at 10% the floor drops to 900, and that gap is what sandwich bots aim for.
On a decentralized exchange your swap waits a short time before it's included in a block, and the pool can change in between. Slippage tolerance sets the least you'll accept. Quote 1,000 tokens with a 1% tolerance and the minimum is 990. If the pool moves and you'd get 995, the swap goes through. If you'd get 985, it fails and you lose only the network fee.
A tight tolerance protects you, but swaps fail more often on busy or volatile pools. A loose one almost always fills, and that's the problem. Bots watch pending transactions, buy just before yours to push the price up, let your swap fill near your floor, then sell straight after. This is called a sandwich attack, and a 10% tolerance gives the bot up to 100 tokens of room on a 1,000-token swap.
Practical settings depend on the pair. Stablecoin to stablecoin swaps usually need only a fraction of a percent. Large, liquid tokens often work at 0.5% to 1%. Small tokens with transfer taxes may need more, and the project should state that clearly. Some wallets offer private transaction routing that hides your swap from public view before it lands, which removes most sandwich risk.
Key terms
Liquidity
How much you can trade without moving the price much.
Order book depth
How much is waiting to buy or sell near the current price.
Slippage
The gap between the expected and actual average price.
Slippage tolerance
The worst price move a decentralized exchange will accept for your trade.
The price you see and the price you pay
The price you'll actually get. The quoted price only holds for small orders. Size changes everything.
How deep the market is. Market cap and volume don't show depth. The order book or the swap preview does.
Fees on top. Slippage comes in addition to exchange or pool fees, not instead of them.
What people get wrong
A big market cap doesn't guarantee deep liquidity. A coin can be worth billions on paper while only a small amount trades near the quoted price.
The price you see isn't always the price you get, especially for large orders or small coins.
Why it matters
Slippage is a real cost. For small coins it can be bigger than any exchange fee.
Common questions
How can I reduce slippage?
Use a limit order, which sets the worst price you'll accept, or split a large trade into smaller ones.
Why did my swap fail with a slippage error?
The pool's price moved past your tolerance before your transaction was confirmed, so the exchange cancelled it instead of filling at a worse price. You usually lose only the network fee. Try again, trade a smaller amount, or raise the tolerance slightly if the pair is volatile.
Is slippage the same as a trading fee?
No. A fee is a fixed charge set by the exchange or pool. Slippage is the difference between the quoted and actual price, and it depends on your order size and how deep the market is. You pay both, and on small coins slippage is often the bigger cost.
