# Launch block

The launch block is the block a coin is created in, and the only block where buys can land before anyone else has seen the coin.

Source: https://unisongo.com/learn/launch-block · Updated 12 Nov 2026 · Unison (unisongo.com)

## How it works

A coin exists from the block that creates it. Buys in that same block run before the coin shows up in any feed, so nobody outside can react to them. Every buy after it competes with the public.

How many buys fit depends on how the chain packs transactions:

| Launchpad | What limits it | Buys that land with the coin on Unison |
| --- | --- | --- |
| [pump.fun](https://unisongo.com/atlas/pump-fun) | A Jito bundle holds at most 5 transactions | 6 team buys, a design limit not yet run on mainnet |
| [Pons](https://unisongo.com/atlas/pons) | The snipe-tax exemption list holds 32 addresses | 31 team buys tax-free right after creation, not in the same block |
| [Direct deploy](https://unisongo.com/atlas/direct-deploy) | Gas: about 94,200 per buy, about 32M per transaction | 240 team buys inside the launch transaction |

## Worked example

On pump fun the create and the dev buy take 2 of the bundle’s 5 transactions. Each of the other 3 carries 2 team buys, so 3 × 2 = 6 team buys land in the launch block. A team of 30 has 24 wallets left, which buy after it as [spread buys](https://unisongo.com/learn/spread-buys).

## Sources

- Jito docs: [bundles hold at most 5 transactions](https://docs.jito.wtf/lowlatencytxnsend/), read 12 Nov 2026.
- Unison: [Launch block and spread buys](https://unisongo.com/docs/launch-block-and-spread).

Also called: block 0.

## Related

- [Jito bundle](https://unisongo.com/learn/jito-bundle): A Jito bundle is a group of up to 5 Solana transactions that land in the same block, in order, or not at all.
- [Spread buys](https://unisongo.com/learn/spread-buys): Spread buys are team wallets that buy one at a time after the launch block, on a schedule, instead of all at once.
- [Bundled coin](https://unisongo.com/learn/bundled-coin): A bundled coin is one whose creator bought it from several of their own wallets at launch, usually in the same block or transaction as the create.