Liquidity pools explained
When you swap a meme coin there is no buyer on the other side. You are trading against a pool of two assets, and a formula decides the price.
What a pool is
A liquidity pool is a contract holding a reserve of two assets. Say a meme coin and ETH. Anyone can trade against it. When you buy the meme coin you add ETH to the pool and remove the token, which changes the ratio and therefore the price. No counterparty had to agree; the formula sets the terms.
Why depth is the number that matters
The deeper the reserves, the less any single trade moves the ratio. A $2,000 buy against a $2,000,000 pool barely registers. The same buy against a $20,000 pool is a tenth of the reserve and moves the price dramatically, against you on the way in, and against you again on the way out.
This is why liquidity depth, not market cap, is the honest measure of whether you can actually trade a token at the size you intend.
Who provides it, and who can remove it
Someone funded that pool. Whoever holds the liquidity position can usually withdraw it, and if they do, the market disappears, your tokens still exist but nothing will buy them. This is the mechanism behind most rug pulls, and it is why "locked liquidity" is a claim worth verifying rather than accepting.
Market cap without liquidity is a mirage
Market cap is price multiplied by supply, and price comes from the last trade against the pool. A token can show a large market cap while holding a few thousand dollars of real liquidity, which means the number describes what the token would be worth if you could sell it all at the last price, and you cannot. See market cap versus FDV.
What to check before trading
- Liquidity in dollars, not just market cap.
- Quoted price impact at your intended size.
- Whether a sell route exists at that size right now.
Common questions
- What is a liquidity pool in crypto?
- A contract holding reserves of two assets that anyone can trade against. A formula sets the exchange rate from the ratio of the reserves, so no matching buyer is needed.
- Why does low liquidity matter?
- Your own trade is a larger share of a shallow pool, so it moves the price against you both entering and exiting. Low liquidity also means the market can vanish if the provider withdraws.
- Can liquidity be removed?
- Usually yes, by whoever holds the liquidity position. If it is removed there is nothing to sell into, regardless of the last quoted price.
Keep reading
Nothing here is financial advice. Meme coins are high risk and most lose value. Read the full risk disclosure before trading.