What Is PumpSwap? How Pump.fun's DEX Works in 2026

For most of Pump.fun's history, a token that completed its bonding curve had to migrate to Raydium before you could keep trading it — a step that cost around 6 SOL and froze trading during the hand-off. PumpSwap killed that. Since March 2025, Pump.fun runs its own DEX, and graduated tokens land on it instantly and for free. If you trade Solana memecoins, PumpSwap is now where most of them live after launch. Here is exactly how it works in 2026 and what changed for traders.

What PumpSwap actually is

PumpSwap is Pump.fun's native automated market maker (AMM) — its own decentralized exchange on Solana. It launched on March 20, 2025. Like Raydium's classic pools and Uniswap v2, it uses a constant-product model (the x · y = k formula): each market is a pool of a token paired with SOL, and the price is set by the ratio between them. Every trade shifts that ratio, which moves the price — the same mechanic that drives slippage and price impact on every Solana memecoin.

The reason PumpSwap exists is simple: keep the liquidity, the volume, and the fees inside the Pump.fun ecosystem instead of handing them to Raydium the moment a token gets popular. If you're new to the launchpad side of this, start with what Pump.fun is and how the bonding curve works — PumpSwap is the second half of that story.

The old flow vs the new flow

Understanding what changed is the fastest way to understand PumpSwap.

Before PumpSwap (the Raydium era): A token traded on its bonding curve until the curve filled. Then it went through a separate migration — a brand-new pool was created on Raydium, liquidity was seeded there, and there was a delay before trading resumed. That migration carried a fee of roughly 6 SOL, and the gap between "curve complete" and "tradable on Raydium" was a window snipers fought over.

With PumpSwap (now): When the bonding curve hits 100%, Pump.fun automatically creates a PumpSwap pool and trading resumes there immediately. No separate migration to a third-party DEX, no manual step, no waiting period, and no ~6 SOL migration fee. The SOL raised on the curve seeds the new pool directly, so liquidity carries over instead of disappearing during a hand-off. Graduation went from a multi-step, paid event to an instant, free one.

When does a token graduate to PumpSwap?

A token "graduates" when its bonding curve is fully bought out. The long-standing threshold is approximately a $69,000 market cap, which works out to roughly 85 SOL of buys on the curve. Treat the dollar figure as a moving target, not a constant: because the curve is denominated in SOL, the USD market cap at graduation drifts with SOL's price. You'll see slightly different numbers quoted across sources for exactly that reason — the SOL amount is the stable anchor.

At that moment, trading flips from the curve to a standard PumpSwap AMM pair. From there the token behaves like any other Solana token: it can be quoted and routed by aggregators, picked up by scanners, and traded through bots.

PumpSwap fees in 2026 — dynamic, not flat

This is the part most outdated guides get wrong. PumpSwap originally launched with a simple 0.25% swap fee (0.20% to liquidity providers, 0.05% to the protocol). That flat number is no longer the whole picture. With the "Project Ascend" dynamic-fee model rolled out in September 2025, fees now scale with a token's market cap:

• On the bonding curve: 1.25% total — about 0.95% protocol plus 0.30% to the creator.
• On graduated ("canonical") PumpSwap pools: the total fee starts around 1.25% for low-market-cap tokens and steps down toward ~0.30% as the token grows into the highest tiers. Across the range, the protocol cut (~0.05%) and the LP cut (~0.20%) stay roughly constant — the variable piece is the creator's share, which shrinks as market cap rises.
• On non-graduated ("non-canonical") pools: a flat 0.30% (0.25% LP + 0.05% protocol, no creator cut).

The practical takeaway: early in a graduated token's life — exactly when most memecoin trading happens — the swap fee is meaningfully higher than the old 0.25% headline. That's on top of Solana network fees, priority fees, and any bot fee. If you want the full stack broken down, see what Solana trading bot fees actually cost.

What PumpSwap means for how you trade

• No more migration gap. The old "wait for Raydium" dead zone is gone. A token is continuously tradable from launch through graduation and beyond, which removes one of the messier timing problems around new tokens.
• Liquidity survives graduation. Because bonded SOL seeds the pool instantly, you don't get the liquidity vacuum that used to appear mid-migration. It's still a memecoin pool, though — thin enough that size moves price. Mind your slippage and position size.
• Bots route through it automatically. Most Solana trading bots don't make you choose a venue — they route through aggregators like Jupiter, which include PumpSwap pools. So whether a token is still on the curve or freshly graduated, your buy finds the right pool without you thinking about it.
• The graduation moment is still a sniper event. Plenty of bots advertise a "migration sniper" that fires the instant a token bonds to the DEX. The mechanics changed, but the race to be early didn't. See the complete guide to Pump.fun sniping.
• MEV is still real. Instant graduation doesn't make sandwich attacks disappear. High-slippage buys on visible transactions are still exposed — MEV protection matters the same as it does anywhere on Solana.

PumpSwap vs Raydium in 2026

The relationship flipped. PumpSwap was built specifically so Pump.fun tokens no longer feed Raydium by default — and by 2026, reports put PumpSwap's AMM volume neck-and-neck with (and at times ahead of) Raydium's, driven almost entirely by graduated memecoins. Raydium is still the deeper, more general Solana DEX for non-Pump.fun tokens and serious liquidity; PumpSwap is the default home for the memecoin long tail that originates on the launchpad. For a trader it rarely matters which one a token lives on — your aggregator handles routing — but it's worth knowing why a freshly graduated token shows up on PumpSwap rather than Raydium now. For the wider field, see Solana launchpads compared.

How MoonHydra handles PumpSwap tokens

MoonHydra routes buys and sells through Jupiter, so PumpSwap pools are part of the routing automatically — you paste a contract address and the bot finds the liquidity whether the token is still on its curve or freshly graduated. The flat 1% per trade is the only fee MoonHydra adds on top of the network and DEX fees, with no separate migration step or venue selection to manage. You can snipe the graduation moment, set TP/SL or limit orders on a position, and run separate Hydra Head wallets for sniping versus holding — all from Telegram, all non-custodial.

Bottom line

PumpSwap is Pump.fun's own DEX, and since March 2025 it's where graduated tokens go — instantly, with no migration step and no ~6 SOL fee. The threshold to graduate is still about $69k market cap (~85 SOL). The big 2026 change traders keep missing is fees: they're now dynamic, starting near 1.25% on freshly graduated tokens and stepping down as market cap grows, not the flat 0.25% from launch day. Everything else you already know about trading thin Solana pools — slippage, MEV, position sizing — applies exactly the same.

Next: read what Pump.fun is for the bonding-curve side, run the due diligence checklist before you buy any graduated token, and start trading at t.me/moonhydrabot.