Second chain

The Robinhood Chain: EVM launches with the same hive.

PumpFun Bundler is dual chain. Alongside Solana it launches, buys and sells on the Robinhood Chain, an EVM network (chain id 4663), through the PONS V2 bonding curve launchpad. Same wallets, same tooling, from the same terminal.

Open the Terminal Bridge funds across

The Robinhood Chain is PumpFun Bundler's second venue. It is an EVM chain built on Arbitrum Orbit, and its native memecoin launchpad, PONS V2, works just like pump.fun: every token gets its own bonding curve quoted in native ETH, and buys and sells hit that curve directly until it graduates. PumpFun Bundler wires the whole flow, launch, buy and sell, into the same terminal you already use for Solana.

Robinhood Chain

Native ETH

PONS V2 launchpad

Bridges to Solana

At a glance

Property	Value
Network	Robinhood Chain, EVM, Arbitrum Orbit
Chain id	`4663`
Quote asset	Native ETH (a payable buy)
Launchpad	PONS V2, a pump.fun style bonding curve factory
Launch fee	`0.0005 ETH`, attached to the launch transaction
Curve math	Constant product, x times y equals k, quoted in ETH
Trade fee	A base trade fee on the quote leg, plus an optional creator tax (combined capped at launch)
Graduation	At the curve's threshold, liquidity migrates to Uniswap v4

Parity with the Solana flow

The point of the second chain is that nothing about your workflow changes. Launch, buy and sell exist on Robinhood exactly as they do on Solana, driven from the same UI. Your wallets, presets and the anti-sniper guard all carry over. The only differences are the ones the chain forces: ETH instead of SOL, and a per token curve contract instead of a Solana program.

The same three actions on both chains, from one terminal. The engine handles the SOL versus ETH and program versus curve differences for you.

The PONS V2 bonding curve

Every PONS token gets its own curve contract, deployed at a deterministic CREATE2 address, holding a constant product (x times y equals k) reserve quoted in native ETH. Buys are payable calls that send ETH to the curve; sells return ETH. There is no external router in the loop while the coin is on its curve, so a buy is a single direct call.

Price rises along the curve as ETH is raised. At the graduation threshold the curve completes and liquidity moves to Uniswap v4, where trading continues.

Launching a token

A launch calls the PONS factory's launchToken with your token parameters, and attaches the 0.0005 ETH launch fee as the transaction value. The factory deploys a fresh token and its bonding curve in one transaction and returns both addresses. A native ETH launch is the default. You can immediately follow the launch with a dev buy against the new curve.

One transaction deploys the token and its curve and returns both. The launch fee is a flat 0.0005 ETH. A dev buy follows against the new curve.

The dev buy and bundle

Just like Solana, you can seed the coin with a dev buy and follow it with bundle wallet buys, and you can mark your own wallets exempt from the opening snipe tax so your team buys are not taxed. The Anti-Sniper guard runs on PONS launches too.

Buying and selling

While a coin is on its curve, a buy is a payable call that sends ETH and receives tokens at the current curve price, with your slippage applied as a minimum tokens out. A sell approves the curve to pull your tokens, then swaps them back to ETH. The engine reads the live reserves and fee schedule before every trade and prices the fill against them, so the quote matches what the curve will actually return.

Buy: ETH in, tokens out at the curve price with a minimum out for slippage. Sell: approve the curve, then swap tokens back to ETH.

The opening snipe tax

PONS applies a decaying anti snipe tax to third party buys in the opening seconds of a curve. It decays to zero over the first few seconds and is zero for the launcher, creator and any wallet you marked exempt at launch. PumpFun Bundler reads the tax for the exact wallet that is about to buy and prices accordingly, so your quotes are honest even during the taxed window.

Graduation

When a curve reaches its graduation threshold it completes: liquidity migrates off the bonding curve and onto Uniswap v4, and trading continues there. After a coin graduates, PumpFun Bundler routes trades to the DEX rather than the curve, and tells you plainly when a token has already graduated.

Graduated coins trade on the DEX

Once a token graduates, its curve stops accepting buys and sells. Trading moves to Uniswap v4. PumpFun Bundler will not try to buy a graduated curve; it surfaces the graduation state instead of pretending the curve is still open.

Moving funds across chains

Because PumpFun Bundler is dual chain, ETH raised on Robinhood can fund a Solana launch, and back again. The Convert screen has a cross chain bridge (SOL to ETH and ETH to SOL) that settles through the Robinhood Orbit bridge, with fast finality. Your balances then show up on both the Launch and Wallets screens.

Bridge SOL to ETH and back through the Robinhood Orbit bridge on the Convert screen. See Convert.

4663

Robinhood Chain id (EVM)

0.0005 ETH

flat PONS launch fee

ETH

native quote asset for the curve

Uniswap venue after graduation

Turning on the second chain is an operator setting. Once enabled, the terminal exposes the Robinhood launchpad in Vamp, Launch and Trade. See Launching Tokens for the composer, and Anti-Sniper for the rug guard that protects a PONS launch.