What liquidity means and why it matters
Liquidity is the single most useful number on a memecoin page, and the one people skip. If you only check one thing before buying a small coin, check this.
What liquidity actually is
Most memecoins trade on decentralised exchanges (DEXs) using a pool: a pot holding two tokens, for example the memecoin and SOL. When you buy, you put SOL into the pot and take memecoins out. When you sell, you do the reverse. The pool's price moves with every trade, based on how much of each token is left inside.
"Liquidity" is the total value sitting in that pool. DexScreener shows it in dollars on every pair.
Why it matters more than market cap
Market cap is price × supply. It tells you what the coin would be worth if every token could be sold at today's price. It can't.
Imagine a coin with a $2 million market cap and $15,000 of liquidity. If holders tried to sell even $15,000 worth, the pool would run low on SOL and the price would fall off a cliff. The headline number looks big but most of it can't be turned back into money.
That's why Coin Check flags coins whose market cap is more than 100 times their liquidity.
Slippage: the cost you don't see
Slippage is the difference between the price you see and the price you get. In a thin pool, a modest buy pushes the price up while it fills, so you pay more than the quote. When you sell, the opposite happens. On a pool with a few thousand dollars in it, a $500 trade can lose you several percent each way before the coin has even moved.
Rough numbers to keep in mind
These aren't rules, just a sense of scale for small coins:
- Under $10,000: very thin. Small trades swing the price, and a single seller can drain it.
- $10,000 to $50,000: thin. Expect big moves and real slippage.
- $50,000 to $250,000: workable for small positions.
- Above that: you can usually get in and out of small trades without much slippage.
Can liquidity disappear?
Yes. Whoever added the liquidity can often remove it. That's the classic "rug pull": the pool is emptied and the token is left with nothing to sell into. Some launchpads lock or burn the liquidity tokens so it can't be pulled, and that's worth knowing, but it doesn't protect you from the team simply selling their own supply.
Read spotting a rug: 7 red flags for the other warning signs.
How to check it quickly
Paste the token address into Coin Check. It shows the liquidity in the main pool, the total across every pool the token trades in, and flags anything thin.
Not financial advice. This guide is general education. Crypto assets are high risk and largely unregulated in the UK; you could lose everything you put in.