How to spot a rug on pump.fun

Why pump.fun rugs look different

On many token launchers a rug means the creator mints new tokens or freezes your wallet. On pump.fun that’s mostly closed off. We read six coins trading on pump.fun’s bonding curve from the Solana chain on 4 November 2026: all six were Token-2022 coins with no mint authority, no freeze authority and a supply of about 1,000,000,000.

That leaves two ways people lose money to a “rug” on pump.fun:

1. Holders dump. The creator, a bundle of linked wallets, or early snipers own a big share and sell into the curve or the pool at once.
2. You bought the wrong coin. A clone with the same name and ticker, often not from pump.fun at all.

Both are checkable before you buy. Run them in this order; the coin check automates most of them.

The 8 checks

#	Check	Where	Warning sign
1	Contract address is the real one	The coin’s pump.fun page, or the creator’s verified account	You found it by ticker search or a DM
2	No clones you’re confusing it with	Search the ticker on a DEX screener	Several coins with the same name; yours is the newest
3	Top-10 holder share	pump.fun coin page “top 10 %”	A high share outside the bonding curve or pool account
4	Dev holdings	pump.fun “dev holdings %”	Creator still holds a large slice, or has sold most of it already
5	Bundlers	pump.fun “bundlers %”	Many wallets bought in the same block
6	Snipers	pump.fun “snipers %”	A big share bought in the first blocks
7	Mint, freeze and transfer tax	Explorer or checker	Any mint or freeze authority; a transfer-tax warning
8	Mayhem Mode	pump.fun Mayhem board or coin page	Extra 1B supply and an agent that may sell

1. Get the contract address from the source

Every Solana coin has a contract address, also called the mint. It’s the only thing that identifies a coin: names, tickers and images can be copied by anyone. pump.fun’s terms (§8.6) say a token with the same name or ticker on another network “is not the same Digital Asset”. Copy the address from the coin’s own pump.fun page or the creator’s verified X account, never from a reply or a DM.

2. Check for clones, and ignore the suffix

Most pump.fun addresses end in “pump”, which leads people to treat it as a seal of approval. It isn’t:

• open-source pump.fun SDKs include vanity address generators, so an address ending in “pump” can be made for any token on any launcher;
• not every pump.fun coin has the suffix: one of the six bonding-curve coins we checked (3HZ97ZA5…DoP3) doesn’t.

Search the ticker on a DEX screener. If several coins share it, compare creation time, liquidity and holder count, and make sure the address you hold matches the one on pump.fun. Paid “verified” profiles on screeners are bought, not checked.

3. Holder concentration

The top-10 figure on pump.fun’s coin page shows how much supply sits in the ten largest wallets. On the bonding curve, the curve’s own account holds the unsold supply; that isn’t a person. Outside that, a few wallets holding a large share can end the coin with a few clicks. Holder-cluster tools such as Bubblemaps show whether “different” wallets were funded from the same source.

4. The dev wallet

pump.fun shows “dev holdings %”. A creator who still holds a large share can sell into your buys. A dev who has already sold everything says something too. pump.fun also flags coins created “offchain”, where the wallet shown as the deployer may not be the real creator.

5. Bundles

A bundle is when the creator buys from many wallets in the same block or Jito bundle, so the holder list looks spread out when it’s really one person. pump.fun’s “bundlers %” estimates the share held by bundled wallets. Commercial launch kits sell this as a feature, so assume it’s common.

6. Snipers

Snipers are bots that buy in the first blocks after launch. A high “snipers %” means a lot of supply was bought at the lowest prices by holders who usually sell into the first wave of buyers.

7. Mint, freeze and transfer tax

A standard pump.fun coin has none of these, which makes any deviation a red flag. Two exceptions to know:

• Transfer tax: Token-2022 coins can take a creator-set percentage on every transfer, buys and sells included. pump.fun shows a warning tooltip when a coin has one.
• A coin that isn’t from pump.fun at all can have live mint or freeze authority. A checker such as RugCheck shows both.

8. Mayhem Mode

Mayhem Mode is an opt-in launch setting where an AI agent mints an extra 1 billion tokens (2 billion total) and buys and sells for the first 24 hours, then burns what it hasn’t sold. pump.fun’s own docs warn that if the agent ends up a net seller, not every holder may be able to sell back into the curve. See Mayhem Mode explained.

What no check can tell you

These checks catch the obvious setups. They can’t tell you whether a coin’s price will hold: a coin with a clean holder list still goes to zero if buyers stop coming. Solidus Labs found 98.6% of pump.fun coins showed rug-pull or pump-and-dump traits (May 2025). Keep amounts small, and read is pump.fun safe and pump.fun scams.