Pump.fun Bonding Curve Explained: Progress, Graduation and PumpSwap

The Pump.fun bonding curve is a pricing formula every new coin launches on. Each buy takes tokens off the curve and pushes the price up; each sell puts tokens back and pulls it down. A progress bar shows how much of the curve has sold. When it reaches the end, the coin graduates and liquidity moves to a PumpSwap pool.

What is the Pump.fun bonding curve?

Think of it as a vending machine with a price that climbs. The first tokens are cheap. Each buy takes some out, and the next ones cost a little more. Sell some back, and the price slides down the same slope.

No one has to seed a pool. No one sets a starting price by hand.

That design is why anyone can launch a coin on Pump.fun in under a minute with almost no SOL, and it's also why early buyers get a much better price than people who arrive once the bar is half full, because the formula rewards being early and charges more for every token that's already been taken off the curve.

How does the bonding curve progress bar work?

On every coin page there is a bar labelled with the curve progress as a percentage. It tracks how much of the tokens set aside for the curve have been bought. Zero means nobody has bought yet. One hundred means the curve is done.

Two things push it around. Buys fill it. Sells drain it. So a coin can sit at 40% for an hour with heavy trading if every buy is matched by a sell, and another coin can jump from 10% to 60% in five minutes on a wave of one-way buying.

What does that mean for you? Volume and progress aren't the same number. A 500 SOL session split evenly between buys and sells adds a lot of volume and very little progress.

How long does it take to graduate on Pump.fun?

Anywhere from minutes to never. Most coins never finish the curve. A few fill it in the first hour on pure hype. Plenty stall at 20% or 30% and drift back as early buyers sell.

There is no fixed timer and no deadline. The curve completes when enough net buying has happened, and how much buying that takes is set by Pump.fun and has changed over time, so any exact figure you read in a thread from last year may already be out of date. The coin page is the only place worth trusting for the current number.

Speed depends on attention. A clear ticker, a thread with replies, a presence on X and a busy feed all bring buyers. Our guide on how to get trending on Pump.fun covers what those feeds react to.

Watch the bar over a full day, not over five minutes. Is it creeping up between bursts, or falling back each time the hype fades? A coin that holds 35% through a quiet night with steady small buys is often in better shape than one that spiked to 70% at launch and has bled ever since. Direction tells you more than the number.

What is King of the Hill and how does it relate to the curve?

King of the Hill is the featured slot on Pump.fun's homepage. It follows market cap and curve progress, so the coins sitting there are usually the ones furthest along the curve at that moment. Sounds simple. In practice the slot changes hands often, and a coin can win it and lose it inside ten minutes.

Our King of the Hill guide goes deeper. The short take: net buying moves you toward it, balanced volume does not.

What happens when a Pump.fun coin graduates?

The curve closes. Liquidity moves into a PumpSwap pool, Pump.fun's own AMM, and trading continues there. From that point the price comes from the pool's reserves rather than from the curve formula.

1. Trading moves from the curve to a PumpSwap pool. The token address stays the same.
2. Holders keep their balances. Nobody needs to claim or migrate anything.
3. The coin starts showing up on more trackers, including DexScreener, with a wider audience.
4. Price reacts to trades through the pool, and slippage depends on how deep the pool is.
5. Pump.fun feeds that list curve coins stop being the main source of visitors.

That last point catches people out. The feed that got you there isn't the feed that matters next. Once a coin is on PumpSwap, visitors often arrive from DexScreener or from wallets and bots that scan new pools, and they judge the coin on a longer chart with more history behind it. See DexScreener trending for Pump.fun coins and our PumpSwap volume bot guide for that stage.

Can a volume bot make a coin graduate?

Not on its own, and we won't pretend otherwise. A Pump.fun volume bot trades your coin from many wallets, buying and selling in the ranges you pick. Balanced two-sided flow builds volume, makers and a busy trades tab. It doesn't fill the curve by much, because each buy is offset by a sell.

Graduation needs real net buying, and real net buying comes from people who like what they see. What a session does is make the page look alive while those people decide. We don't guarantee graduation, King of the Hill, a price or a profit, and nobody honest can.

Where we do help is the handover. Sessions run 15 minutes to 10 hours from 500 to 10,000 fresh wallets, and if the coin graduates mid-run the session detects it and routes remaining trades to the PumpSwap pool automatically. You pay one flat 1% fee on target volume, from 100 SOL, and set it all up in the console with no wallet connection.

What mistakes stall a coin on the bonding curve?

The same mistakes come up again and again:

1. Trusting an old graduation number from a thread instead of reading the coin page today.
2. Treating volume as progress, then wondering why the bar hasn't moved after a busy hour.
3. Dev buying most of the curve early, which shows up at the top of the holder list and scares buyers.
4. Stopping all activity right after graduation, so the PumpSwap chart goes flat on its first day.

Fix the fourth one and you're ahead of a lot of launches. Why let the chart die the moment more people can see it?

Questions people actually ask

Session operations team

We run the sessions behind this console every day and update these guides when Pump.fun changes how the curve, the feed or PumpSwap work. Spotted something out of date? Write to support@pumpfunvolumebot.us.