What happens when a pump.fun coin migrates — and how to trade it more safely

Before migration: the bonding curve

A coin launched on pump.fun doesn't start with a liquidity pool. It starts on a bonding curve: a contract that holds the coin's supply and sells it at a price set by a formula. Every buy pushes the price a little higher along the curve, every sell pushes it back down. There is no order book and no one providing liquidity — the curve itself is the counterparty.

The token supply is split in two from the start. In recent descriptions of the mechanism, roughly 800 million of the one billion tokens can be bought on the curve, and about 200 million are held back for the pool the coin will get later. The curve is complete when it has taken in a set amount of SOL — around 85 SOL in recent reporting, which works out to a market cap that moves with the SOL price. pump.fun sets and changes these parameters itself, so treat the exact numbers as approximate and check its documentation for the current ones.

Most coins never get there. Only a small share of pump.fun launches complete their curve; the rest fade out on it.

The moment of graduation

When the curve fills, graduation happens automatically. There is no vote and no manual step:

1. Trading on the curve stops. For a short moment the coin can't be traded on pump.fun at all.
2. A pool is created. The SOL the curve collected (minus a fee) and the reserved tokens are deposited into a new liquidity pool. Since March 2025 that pool is on PumpSwap, pump.fun's own exchange; before that, coins migrated to Raydium.
3. The LP tokens are burned. The tokens that represent ownership of that pool's liquidity are sent to a burn address, so nobody — not the creator, not pump.fun — can withdraw it.
4. The coin goes public. From now on it trades like any other token: through swap aggregators, on charting sites and in trading terminals.

In 2026 pump.fun also changed what happens right after graduation. Under a mechanism it calls BOOST, part of the migration liquidity is no longer simply parked in the pool: it is used for automatic market buys in the first minutes after migration, and the tokens bought are burned. That adds buying pressure in exactly the window when early holders tend to sell. Mechanisms like this change; read the current rules before you assume how a graduation will play out.

What migration fixes — and what it doesn't

A standard pump.fun coin already has its mint and freeze authority revoked at launch, and graduation adds burned liquidity. That rules out the three classic code-level rugs: printing new supply, freezing holders, and pulling the pool.

What graduation does not change is who holds the coin. The risks that remain are almost all about people:

• Concentrated holders. Wallets that bought cheaply on the curve can own a large share of supply — and graduation is their natural moment to sell.
• Bundled launches. A creator who bought through many wallets at launch looks like a healthy holder list, until those wallets sell together.
• Creator share. The creator can still hold, and sell, a meaningful block.
• Copies and decoys. A coin that graduates gets attention, and copies with the same name and ticker follow fast. Extra thin pools for the same token can show a misleading price.
• Price already run. The curve rewards the earliest buyers most. By the time a coin graduates, you are often buying from people sitting on a large gain.

Why the first minutes are so wild

Several forces hit a freshly migrated coin at once. Curve buyers take profit. The coin appears on aggregators and charting sites and attracts a second wave of buyers who couldn't or wouldn't trade on the curve. Bots that watch for migrations buy within seconds. And automatic post-graduation buys add their own pressure for a few minutes.

The result is a price that can jump and crash within the same minute. A market order placed with high slippage in that window can fill far from the price you saw. If you trade graduations, assume the first candle is the least reliable price the coin will ever show.

A checklist before you trade a migrated coin

1. Confirm the address. Copy the mint address from the coin's own pump.fun page or the place you first saw it. Most pump.fun mint addresses end in the letters "pump" — useful for spotting a copy launched elsewhere, but not proof of anything on its own.
2. Find the real pool. Check that you are looking at the migration pool with the burned LP, not a thin side pool.
3. Read the holder list without the pool. Leave out the pool and burn addresses and see what the largest wallets hold together.
4. Look for linked early buyers. Did many of the first buyers come from one funding wallet, in the same block? Do they still hold?
5. Check the creator. How much does the creating wallet hold, and what happened to its previous launches?
6. Measure how far it has run. If the price is up several hundred percent in a few minutes, decide whether you are early or the exit liquidity.
7. Size to the pool. Your buy should be small next to the pool, or your own trade will move the price against you on the way in and on the way out.
8. Set slippage on purpose. Wide enough to get filled, not so wide that any price will do.

For the full set of contract and holder checks, see How to check if a Solana token is a rug pull.

Plan the exit before the entry

Migrated coins move too fast to decide your exit after you are in. Before you buy, know three numbers: where you cut the loss, where you take the first profit, and how you protect what's left — for example with a trailing stop that follows the price up. Taking profit in steps means one sharp reversal can't take back everything.

And practise first. Running your rules on paper for a few days shows you how often a graduation dump would have hit your stop, and whether your take-profit steps ever got reached — without paying for the lesson.

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Not financial advice. Memecoins are extremely risky and most go to zero; only trade money you can afford to lose. Checks lower the odds of a bad coin — they don't remove them. Read the Risk Disclaimer.