How to Bundle on Pump.fun — Complete Guide 2025

The definitive guide to bundle buying on Pump.fun using Jito bundles. Learn how to buy from multiple wallets in block 0 for maximum supply control.

What is Bundling on Pump.fun?

Bundling on Pump.fun means executing multiple buy transactions in the same block as the token creation — block 0. Using Jito bundles, you can have up to 5 wallets buy your token atomically with the deploy transaction. This guarantees your wallets get the lowest possible price before anyone else can snipe.

Why Bundle in Block 0?

How Jito Bundles Work

Jito is a Solana validator client that supports transaction bundles. A Jito bundle is a group of up to 5 transactions that are executed atomically — either all land in the same block or none of them do. This is critical for bundling because it ensures your buy transactions always land with the create transaction.

The first transaction in the bundle typically includes a tip to the Jito validator (usually 0.003-0.01 SOL) to prioritize inclusion. Higher tips = higher chance of landing in the next block.

Step-by-Step: How to Bundle on Pump.fun

Step 1: Generate Bundle Wallets

In SolBundler Dashboard, go to the Wallets tab. Generate 3-5 bundle wallets. These are separate from your dev wallet and will be used exclusively for the bundle buy. Keep private keys safe — never share them.

Step 2: Fund Bundle Wallets

Each bundle wallet needs enough SOL to cover the buy amount plus transaction fees. Use the Fund Wallets button to send SOL from your dev wallet to all bundle wallets at once. Recommended: 0.3-1 SOL per wallet depending on how much you want to buy.

Step 3: Configure Your Launch

Go to the Launch page. Fill in token details, select your dev wallet and bundle wallets, set individual buy amounts per wallet. Set priority fee to 0.003-0.005 SOL for reliable block 0 inclusion. Choose Bundle or LBS mode.

Step 4: Launch the Bundle

Click Launch Token. SolBundler will: (1) Upload metadata to IPFS, (2) Build a Jito bundle with create + dev buy + bundle wallet buys, (3) Sign all transactions, (4) Send to Jito block engine across 5 endpoints simultaneously. The entire process takes 2-5 seconds.

Step 5: Monitor on Project Manager

After launch you're redirected to the Project Manager. Here you can see all wallet balances, token holdings, P&L for each wallet, and control buys/sells. The chart updates automatically every 20 seconds.

Bundle Strategy Tips

Common Bundle Mistakes

Bundle fails / not landing: Increase priority fee. During congestion, 0.01+ SOL tip is needed. Use multiple Jito endpoints (SolBundler does this automatically).

Wallets have insufficient SOL: Always check balances before launching. Each wallet needs buy amount + ~0.01 SOL for fees.

Bundle detected by community: Vary your wallet amounts and don't use round numbers. 0.47 SOL looks more organic than 0.5 SOL.

LBS Mode: Launch + Bundle + Snipe

For maximum supply capture, use LBS mode. This combines: bundle wallets buying in block 0 via Jito + snipe wallets firing immediately after the bundle lands. You can capture 20-40% of initial supply across all your wallets before retail gets in.