Where a bundle sits on Bonk.fun's curve
Every Bonk.fun coin starts the same way: a 1,000,000,000 supply with 6 decimals, 793.1 million of it for sale on a SOL bonding curve, and an 85 SOL target. When buyers have paid in 85 SOL, LaunchLab stops the curve and Raydium moves the coin into a CPMM pool with the raised SOL and the 206.9 million tokens held back. A bundle buys at the very start of that curve, where tokens are cheapest.
Worked example: a 1 SOL dev buy followed by 8 wallets at 0.5 SOL each spends 5 SOL and ends up with about 15.1% of the supply across 9 wallets. Bonk.fun's 1.5% fee on those buys comes to 0.075 SOL (0.25% to Raydium, 1.25% to the Bonk.fun platform), and the curve is still only about 6% of the way to its 85 SOL migration.
Why only 9 wallets fit, against 16 on pump.fun
Jito caps a bundle at 5 transactions. The first is yours: LaunchLab's initialize_v2 with Bonk.fun's platform account, the dev buy and SOLTidy's fee. That leaves 4 for buyers. A LaunchLab buy pays in wrapped SOL, so each buyer brings a temporary wSOL account, its token account, a signature and six instructions, roughly 262 bytes. Two buyers make a 1,025-byte transaction; a third would push it to 1,287 bytes, past Solana's 1,232-byte cap (our measurement, November 2026). pump.fun buys use native SOL and pack 4 to a transaction, which is why the pump.fun bundle launcher holds more.
| # | Signers | What it does |
|---|---|---|
| 1 | You and the new mint | initialize_v2 on Bonk.fun's platform, dev buy, 0.3 SOL to SOLTidy |
| 2, 3, 4 | Two buyer wallets each | Wrap SOL, buy_exact_in, unwrap, for each buyer |
| 5 | Two buyer wallets | Two more buys, plus the Jito tip |
Budget for a Bonk.fun bundle
Using the example above: 5 SOL of buys, 0.3 SOL to SOLTidy, about 0.021 SOL for the mint, metadata, pool and vault rent and Metaplex's fee, and a 0.001 SOL tip, about 5.32 SOL across the wallets. Each buyer also keeps about 0.0045 SOL on top of its buy for its token account and network fee. Send that SOL out beforehand with the multisender.
letsbonk.fun's holder list, Solscan and screeners such as Bubblemaps label launch-block buyers as bundled, so treat the 15% in the example as public information. Bundle for wallets you will name as team or treasury, not to make a coin look more popular than it is; faking demand misleads buyers and can be illegal.
Bonk.fun-specific things that can stop a bundle
A ...bonk address search runs before you sign, not during the launch, so it doesn't eat into the blockhash's lifetime; but leaving the approval prompt open for about a minute does, and an expired blockhash means Jito drops the bundle. A buy priced below its slippage floor, or a tip too small for a busy block, drops it too. In each case nothing reached the chain.
Keys pasted for the buyers sign in this tab only. They aren't uploaded or saved, and they're wiped once the transactions are signed, when you press Clear or when you close the page. Jito receives signed transactions through SOLTidy's forwarder, which never handles a key.
Questions & answers
Will a bundled Bonk.fun coin still migrate to Raydium normally?
Yes. The bundle only makes the first buys. The coin keeps Bonk.fun's 85 SOL target and moves to a Raydium CPMM pool when the curve fills, like any letsbonk.fun coin.
Can the bundled coin have an address ending in bonk?
Yes. Search the suffix before you launch; four letters take about 11 million tries, usually a few minutes in the browser. The bundle then creates the coin at that address.
Why 8 buyer wallets and not 15?
LaunchLab buys wrap SOL and are larger than pump.fun buys, so only 2 fit per transaction, and Jito allows 4 buyer transactions after yours.
What is lost if the bundle doesn't land?
Nothing. Not the 0.3 SOL fee, not the tip and not the buys: no transaction of the bundle runs. Raise the tip or retry; the same mint address is kept.
Bonk.fun or the LaunchLab bundle launcher?
Same program and curve. Bonk.fun's platform takes 1.25% per trade and lists the coin on letsbonk.fun; Raydium's own platform takes 0.75%, gives the creator 0.05% and lists it on raydium.io.
Is there a fee?
SOLTidy charges a flat 0.3 SOL per Bonk.fun bundle, inside the create transaction, so nothing is charged unless the whole bundle lands. Separately you pay the Jito tip (0.001 SOL by default), about 0.021 SOL of rent plus Metaplex's metadata fee, and Bonk.fun's 1.5% trading fee on each buy.
