Burned LP tokens on pump.fun: what they protect against, and what they don't

• What LP tokens are
• What burning protects against
• What burning does not protect against
• A better short checklist
• Bottom line

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“LP burned” is one of the most repeated phrases in memecoin chats, usually said as if it settles the question of whether a coin is safe. It doesn’t. Here is what it actually protects against on pump.fun, and the much longer list of things it says nothing about.

§What LP tokens are

When liquidity is put into an automated market maker (AMM) pool, the depositor receives LP (liquidity provider) tokens. They are a claim on the pool: whoever holds them can later redeem them and pull the underlying SOL and tokens back out.

On pump.fun, a coin’s liquidity moves into a PumpSwap pool when its bonding curve completes (“graduation”). Pump.fun’s public program documentation says the LP tokens received from that pool are burned, meaning sent somewhere nobody can ever spend them. I wrote up the full migration flow here: pump.fun graduation and PumpSwap explained.

§What burning protects against

Exactly one thing: the initial pool liquidity can’t be withdrawn by whoever would otherwise have held the LP tokens. The classic “remove liquidity and leave holders with an empty pool” rug is off the table for that pool.

That’s useful. It’s also narrow.

§What burning does not protect against

• Holders selling. Anyone holding the token can still sell into the pool. If a few wallets hold a large share of supply, their selling can drive the price down hard, and a burned LP doesn’t slow that down at all.
• The creator selling. A creator who bought early on the curve is just another holder. Burned LP says nothing about their bag.
• Coordinated pumps. Group promotion followed by selling works fine on a pool with burned LP.
• Thin liquidity. Burned liquidity can still be small liquidity. Price impact on a shallow pool is brutal in both directions.
• Copycat coins. A coin with a stolen name and logo can graduate and have its LP burned like any other.
• Your own wallet security. None of this helps if you sign a malicious transaction on a fake site.

§A better short checklist

Instead of “is LP burned?”, I ask:

1. How concentrated is the supply? Look at the top holders and whether they are linked.
2. What has the creator wallet done before? A trail of abandoned coins is a warning.
3. How deep is the pool compared with the size I want to trade?
4. Is the hype specific (a product, a community, a reason) or just “buy now”?
5. Am I on the real pump.fun domain, and do I understand every signature request?

There’s a longer version of this list on my rug pull warning signs page.

§Bottom line

Burned LP removes one specific way to steal from a pool. Treat it as a box ticked, not a verdict. Most memecoins still fail, with or without it.

Risk warning: memecoins are highly speculative. Only use money you can afford to lose.