A rug pull is a type of exit scam in which the developers or controlling insiders of a token project sell their holdings or drain the liquidity pool, abandoning the project and leaving remaining token holders with near-worthless positions. The phrase comes from the idiom "pulling the rug out from under someone" — the floor disappears without warning. Rug pulls are the primary financial risk in meme coin trading and the most common cause of total loss.
Types of rug pull
Hard rug
A hard rug is abrupt and typically executed in a single transaction or rapid sequence. The developer sells their entire allocation, the price collapses in seconds to near zero, and the project is abandoned immediately. Hard rugs often follow a pattern of heavy promotion — aggressive CT marketing, fake partnerships, celebrity endorsements — followed by a sudden sell-off with no warning.
Soft rug
A soft rug is slower and harder to identify in real time. The developer gradually reduces engagement — slower social media updates, delayed responses to community questions, fewer development announcements — and may slowly sell tokens over days or weeks. The price erodes as community confidence falls, but there is no single dramatic failure moment. By the time holders recognize the pattern, significant value has already left.
Slow rug
A slow rug is a methodical, extended exit in which the team sells incrementally while maintaining just enough visible activity to prevent community alarm. This can span weeks or months. Some slow rugs maintain active social channels throughout while the team continuously reduces its on-chain exposure.
Warning signs
- Mint authority not revoked — the developer can print unlimited new tokens at any time, diluting existing holders
- Freeze authority active — the developer can prevent specific wallets from selling
- Concentrated insider supply — a small number of wallets hold a disproportionate percentage of supply
- Anonymous team — no verifiable identities, track record, or accountability
- Unrealistic promises — roadmap elements designed to maintain bag holder hope rather than deliver product
- Unusual liquidity structure — locked liquidity for a short period only, or liquidity controlled by the team
Rug pulls on pump.fun
pump.fun's bonding curve model partially mitigates rug pull risk during the early trading phase by removing developer control of liquidity. Below the graduation threshold (~$69,000 market cap), the protocol itself owns all liquidity and prices are determined by the bonding curve — there is no pool for a developer to drain. However, once tokens graduate to Raydium, liquidity is owned by whoever deployed it, reintroducing traditional rug pull vectors.