Solana Bundle Checker: How to See if Insiders Loaded a Launch

A Solana bundle checker looks at the first wallets that bought a new token and asks one question: were they separate buyers, or one buyer split across many wallets? If insiders loaded the launch, a large part of the supply sits with a single party that bought before anyone else could. This lesson explains what a launch bundle is, why it matters, how to read one, and where PumpPill shows it.
What a launch bundle is
When a token launches, someone has to buy first. On a fair launch those first buyers are strangers racing each other. In a bundle, the creator or a group close to it buys in the opening seconds through many wallets at once. Each wallet holds a modest share, so the holder list looks spread out. Added together, the group can hold a large share of the supply at the lowest prices the token will ever trade at.
Splitting a buy across wallets leaves marks on the chain. PumpPill's scan looks for six of them and names the ones it finds:
- buying in the same slot
- going through one Jito bundle
- sharing one address lookup table
- paying identical minimum fees
- filled by one multi-wallet transaction
- sending sale proceeds to one wallet
One of these on its own can be a coincidence. Several together on the same group of wallets is a pattern.
Why a bundle matters
A bundle is not a rug by itself. It is supply that one party controls, bought at a price nobody else could get. That party can sell into every buyer who comes after.
Our own records show the cost. Of the Solana calls PumpPill logged with a bundle read taken at entry, tokens with a confirmed bundle reached 2x 14.4% of the time and went flat or down 62.5% of the time (n 2,567). Tokens where no bundle was found reached 2x 24.3% of the time and went flat or down 49.7% of the time (n 4,102). A bundle does not decide the outcome. It does tilt the odds.
How to read a Solana bundle checker
A useful one answers four things. Read them in this order.
1. How many wallets bought at launch, and how many bought together
The count of launch wallets is the base. The number that bought as one group is the finding. A small group out of many launch wallets is a different story from most of them moving together.
2. How they were tied together
The method tells you how sure to be. Wallets filled by one multi-wallet transaction, or sending their sale proceeds to one wallet, are hard to explain as strangers. Look for more than one method on the same group.
3. Are they still in, or have they sold
This is the question people get backwards. A bundle that still holds a large share is supply waiting to be sold into you. A bundle that has already sold out is a different picture: the insiders took their profit and left, and the holders who remain bought from them. That can be a cleaner setup than a fresh launch, not a worse one. The cleared float lesson covers this in full.
A group that is selling right now is the case to watch most closely. The lesson on how insiders exit shows what that looks like on the tape.
4. Who funded them
Fresh wallets paid by the same funder are one buyer. If the funder cannot be traced, a good checker says so rather than calling the wallets independent.
Where PumpPill shows the bundle
On the token page
Paste a Solana mint at /scan and open the full read. The Bundle section asks: "Did insiders load the launch, and are they still in?" Its answer is written in plain words, for example how many wallets bought in the first seconds, how many of them bought as one group and by which methods, and then either how much of what they bought they have sold or how much of the supply the group still holds together.
Under the answer:
- The numbers: how many launch wallets bought as one group out of the total, the SOL the launch wallets spent, and the share of supply the group still holds, when that was read.
- The launch wallets: each wallet with the SOL it spent and how many seconds after launch it bought. A wallet is tagged if it is the creator, or if it was seen in earlier rugs.
- The funder: a note when one funder paid more than one of these wallets, or when the funding could not be traced.
- The time stamp: when the launch was read. The page adds: "We read who bought, not what each still holds." The wallet list shows the buys. It is not a live balance for each wallet.
If the launch has not been read, the section says: "The launch buyers have not been read for this token. That is unread, not clean."
In the risk answer
The bundle is one of the reasons under What's my risk? A coordinated group reads as a fail, worded as how many of the launch wallets bought as one group, with the methods named. When the bundle is the worst finding besides the contract, the risk clause says so: "the launch was bundled." The read never turns this into a score.
On Solana the evidence list can also carry a line from GMGN when it saw the launch bundlers selling.
On Robinhood Chain
The Robinhood Chain read covers the same ground for its launches. It counts the launch buyers, the share of supply they bought, what they hold now, and how many have sold out or partly. It also asks what the pool could pay them at today's price, and flags a group whose holdings are larger than the pool could pay out.
In Telegram
Add @PumpPill_Group_Scan_Bot to a group and it answers any contract pasted there, or in a direct message. On Robinhood Chain its reply carries a Launch buyers line: how many wallets, what share they bought, what they hold now, and how many sold out. On Solana the reply is shorter. It leads with the read's verdict sentence, the creator's record and who posted the contract on X, and links to the token page where the full Bundle section lives.
In the PumpPill Trade Bot, paste a contract and tap Scan to see the read before you buy.
What it does not tell you
A clean bundle check is not a promise. "We found no group" means the scan did not find one with the methods it looks for. A careful insider can buy with wallets that share none of those marks.
Unread is not clean. If the launch buyers were not read, or the funders could not be traced, treat that as an open question, not a pass.
The wallet list is a record of who bought. It is not a live balance for each wallet. Read the time stamp, because a group that held this morning may be selling now.
A bundle says who controls supply. It says nothing about whether the token will find buyers, and a token with no bundle can still go nowhere.
What the video says the full transcript, for reading or searching
The lesson is the method. The product is where you apply it.