Pump.fun Custom Pairs: Coin Pairs, Fees and Holder Rewards

What are Pump.fun Custom Pairs? From stock pairs to coin pairs

• 9 September 2026: launched with 93 pair assets, mostly xStocks like NVDAx and SPYx (the Pump.fun stock pairs), plus wrapped BTC, ETH and metals.
• 12 September 2026: over 70 more assets added.
• 8 to 9 October 2026: any eligible Pump.fun coin can be a parent.

The list also has PUMP and Bonk, which weren’t launched on Pump.fun, and Fartcoin, which was. SOL and USDC pairs work as before. Other Pump.fun changes are on our news page.

Which coins can be a parent

A Pump.fun coin can be a parent if it was launched against something on Pump.fun’s supported pair assets list and is still on its bonding curve (the launch stage before graduating, see how bonding curves work) or on PumpSwap, Pump.fun’s own exchange after graduation.

So a normal SOL-paired coin, whether it’s still on its curve or already on PumpSwap, can be a parent, and so can listed coins that graduated to Raydium, like Fartcoin. A coin that is itself paired with another Pump.fun coin can’t be: pairing only goes one level deep. The pair is fixed at launch.

What one SOL buy actually does

It’s one click, but your SOL buys the parent in its pool first, then the parent buys the new coin. Selling back to SOL goes through both pools again. So you hold a coin priced in another memecoin: if the parent halves, your coin’s value in SOL halves too, even if nobody sells yours.

On Pump.fun’s app, the parent’s pool only takes the protocol fee on that leg. The creator fee (or Holder Rewards) and any LP fee are charged once, on the new coin’s pool. When I LPed StonkFun coins on Meteora, aggregators routed trades through the Meteora pool and LPs like me earned the fee. Here the parent’s creator, LPs and Holder Rewards holders get the flow but not the fee.

Pump.fun Custom Pairs fees on a SOL buy

On Pump.fun’s own app you pay two sets of fees on a SOL buy: the parent pool’s protocol fee, then the new coin’s protocol fee plus its creator fee or Holder Rewards rate. The rates depend on where each coin is, on its bonding curve or on PumpSwap and how big it is, so check the fee page in Pump.fun’s docs and the total the app shows before you confirm. Price moves in both pools too.

Apps that haven’t moved to the current Pump.fun program can charge every fee on every pool in the route, a multiple of these numbers. That gets pretty expensive fast. Buying through Axiom, GMGN or another of the Solana trading bots we compare? Check its quote against Pump.fun’s for the same amount first.

Pump.fun Holder Rewards on paired coins

New coins can use Holder Rewards, a share of trading fees paid out to holders, with the rate set by the creator at launch. On a coin paired with a Pump.fun coin they’re paid in the parent coin, pro rata.

I wouldn’t treat rewards paid in a memecoin as income. If the parent halves, so does your payout.

Creating a coin: picking the parent

The create flow is the normal one, and our launchpad comparison sets Pump.fun against StonkFun, LaunchLab and BONK.fun. With Custom Pairs you also pick the pair and the fee model. The pair can’t change after launch. Paste the parent’s mint address from its coin page, never the ticker, because copycat tickers are everywhere. And pick a parent with real liquidity, since every buyer goes through its pool.

What to check before you buy one

Match the parent’s mint address on an explorer rather than trusting the ticker. A copycat parent is the easiest way to end up holding the wrong coin. Then read the parent’s liquidity before you size in, because a thin parent costs you on the way in and on the way out. And ask if you’d buy the parent on its own.

I’d stick to SOL-paired coins unless you already rate the parent. Most new coins still go to zero, and here both have to hold up.