What Is PumpSwap? How Pump.fun's DEX Works After Bonding (2026)
If you've traded memecoins on Solana, you've probably used Pump.fun — the platform where anyone can launch a token on a bonding curve. But what happens after a token completes its bonding curve? That's where PumpSwap comes in.
PumpSwap is Pump.fun's native decentralized exchange (DEX), launched in March 2025. It replaced the previous system where graduated tokens migrated to Raydium, keeping the entire lifecycle — from token creation to open-market trading — within the Pump.fun ecosystem.
This guide explains how PumpSwap works, why Pump.fun built its own DEX, and what it means for traders and liquidity providers.
The Problem PumpSwap Solves
Before PumpSwap, every Pump.fun token that completed its bonding curve had to migrate to Raydium. This migration process had several issues:
Migration fees. Creating a Raydium pool cost approximately 6 SOL, which was deducted from the bonding curve's collected liquidity. This was a significant cost that reduced the available liquidity for the token.
Delay. The migration process wasn't instant. There was a gap between bonding completion and Raydium pool creation — sometimes minutes, sometimes longer. During this window, trading was effectively paused, and price discovery was disrupted.
Fragmented experience. Traders had to switch from Pump.fun's interface to Raydium or Jupiter after graduation. The user experience was disjointed.
Dependency on a third party. Pump.fun's entire post-graduation infrastructure depended on Raydium, a separate protocol with its own priorities, fees, and potential issues.
PumpSwap solves all of this by handling graduation internally.
How PumpSwap Works
The Graduation Process
When a Pump.fun token's bonding curve reaches its target (~85 SOL deposited; the threshold is SOL-denominated, so the USD market cap floats with SOL price), here's what happens:
- Bonding curve completes. The final buy pushes the curve past the threshold.
- Instant migration. Unlike the old Raydium migration, PumpSwap creates a liquidity pool immediately — no delay, no waiting period.
- Liquidity deposited. The SOL collected during the bonding curve phase is paired with remaining tokens and deposited into a PumpSwap AMM pool.
- Zero migration fee. PumpSwap eliminated the ~6 SOL migration fee entirely. All collected liquidity goes into the pool.
- Trading continues. The token is immediately tradeable on PumpSwap, and Jupiter indexes the pool for aggregated routing.
PumpSwap's AMM Design
PumpSwap uses a constant-product AMM (x * y = k), the same fundamental design as Uniswap v2 and Raydium's standard pools. This means:
- Simple and predictable pricing. The price moves along a smooth curve based on supply and demand.
- Full-range liquidity. Liquidity is spread across all possible prices (unlike concentrated liquidity systems like Orca Whirlpools).
- Anyone can LP. After graduation, anyone can add liquidity to a PumpSwap pool and earn a share of trading fees.
Fee Structure
PumpSwap charges a 0.25% fee on every swap:
| Fee Component | Percentage | Recipient |
|---|
| LP fee | 0.20% | Liquidity providers |
| Protocol fee | 0.05% | Pump.fun protocol |
This is competitive with Raydium's standard pool fees and significantly cheaper than the 1% fee charged during the bonding curve phase on Pump.fun itself.
Creator Revenue Sharing
One of PumpSwap's most significant features is creator revenue sharing. A portion of the protocol fees earned from trading can be directed to the token's original creator. This gives token creators a financial incentive to grow their token's trading activity long-term, rather than just dumping at graduation.
The revenue share model is designed to align incentives — creators benefit from sustained volume, not just from selling their initial holdings.
PumpSwap vs Raydium Migration
Understanding the differences between PumpSwap and the old Raydium migration helps explain why this change matters.
| Feature | PumpSwap | Raydium Migration (Old) |
|---|
| Migration fee | 0 SOL | ~6 SOL |
| Migration speed | Instant | Minutes (sometimes longer) |
| Liquidity preserved | 100% of bonding curve SOL | Minus ~6 SOL fee |
| Trading downtime | None | Brief gap during migration |
| LP opportunities | Open to anyone | Open to anyone |
| Jupiter integration | Yes (indexed automatically) | Yes |
| Swap fee | 0.25% | 0.25% (standard pools) |
| Creator revenue share | Yes | No |
| Pool type | Constant product AMM | Constant product AMM |
What This Means for Traders
More liquidity at graduation. Without the ~6 SOL migration fee, graduated tokens start with more liquidity in their pool. This means slightly better execution prices and lower slippage right after bonding.
No trading gaps. The instant migration eliminates the awkward period where a token has bonded but isn't yet tradeable. You can buy and sell continuously through the graduation transition.
Same aggregator access. Jupiter routes through PumpSwap pools just like it routes through Raydium. If you're using Jupiter for swaps (which you should be for best pricing), the backend change from Raydium to PumpSwap is mostly invisible — you still get the best available price.
How to Trade on PumpSwap
Option 1: Via Jupiter (Recommended for Best Price)
The easiest way to trade PumpSwap tokens is through Jupiter:
- Go to jup.ag and connect your wallet
- Search for the token by name or paste the contract address
- Enter your swap amount and execute
Jupiter automatically finds the best route, which may include PumpSwap pools, Raydium pools, or a combination.
Option 2: Via Pump.fun Directly
After graduation, the token's page on Pump.fun shows a link to trade on PumpSwap. You can swap directly through the Pump.fun interface.
Option 3: Via Trading Terminals
Advanced trading tools like Axiom, BullX, and Photon support PumpSwap pools. These platforms offer additional features like limit orders, auto-sells, and portfolio tracking that the native PumpSwap interface doesn't provide.
Option 4: Direct on PumpSwap
Navigate to PumpSwap's interface directly to browse available pools, swap tokens, and manage LP positions.
Providing Liquidity on PumpSwap
PumpSwap opens a new opportunity for liquidity providers on Solana. Here's what you need to know.
How to Add Liquidity
- Find the token's pool on PumpSwap
- Deposit an equal value of SOL and the token
- Receive LP tokens representing your share of the pool
- Earn 0.20% of every swap executed in the pool
LP Considerations
Impermanent loss is real. Memecoin prices are extremely volatile. If you provide liquidity and the token price moves significantly in either direction, you may end up with less total value than if you'd simply held. This is especially pronounced with memecoins that can 10x or crash 90%.
Volume is key. Your LP earnings depend on trading volume. High-volume tokens generate significant fees; dead tokens generate almost nothing. Focus on tokens with active communities and sustained interest.
No concentrated liquidity. PumpSwap uses full-range AMM pools, meaning your capital is spread across all prices. This is simpler to manage than concentrated liquidity (like Orca Whirlpools) but less capital efficient.
Rug pull risk. If you provide liquidity for a memecoin that gets abandoned or rug-pulled, you'll be left holding worthless tokens. Only LP for tokens you've thoroughly researched.
Which Tokens Use PumpSwap vs Raydium?
The landscape has evolved over time:
Most new Pump.fun graduations → PumpSwap. Since PumpSwap's launch, the majority of newly graduating tokens migrate to PumpSwap by default.
Older tokens → Raydium. Tokens that graduated before PumpSwap launched remain on Raydium. These include many established memecoins with deep liquidity.
Some tokens have both. A token can have liquidity on both PumpSwap and Raydium (and other DEXs). Jupiter aggregates across all of them, so as a trader using Jupiter, you automatically get the best price regardless of where liquidity sits.
How to Check Where a Token Trades
- Birdeye — Shows all pools for a token across every DEX
- DexScreener — Displays pool-level data including which DEX each pool is on
- Jupiter — Automatically routes to the best available pool
