Axiom traders paid $9.4 million for Priority. It bought about 15 milliseconds

01 · The claimA tip marked Priority

Axiom is a crypto trading app. You connect a wallet, pick a memecoin, hit buy, and the app does the rest. On Robinhood Chain, the Ethereum layer 2 run by Robinhood, every Axiom trade also came with a small tip marked Priority. Unless you changed it, the charge was 0.001 ETH, on top of Axiom's 1% trading fee.

On September 29, a post on X said Axiom had charged traders more than $10 million "for a feature that does NOT exist." The argument was short. The chain lines up transactions in the order they arrive, so paying extra cannot jump the queue. A tracking site, axiom.exposed, put the Robinhood Chain total at about $10.6 million.

Bitquery indexes every transaction on the chain, so we checked both halves of that claim. How much did Priority collect, and did it make trades land any faster? The money is real, if a little smaller than the headline. The speed gain is real too, and tiny. Trades that paid landed about 15 milliseconds sooner, and paying more than the minimum bought nothing extra. The same charge turns up on five other chains, and none of the wallets collecting it has paid the people who build blocks.

02 · How it worksOne contract, three payouts

Every Axiom trade on the chain goes through Axiom's own router, a smart contract that does the swap. The router takes the ETH you send and splits it. One percent goes to Axiom's fee wallet. The flat tip goes to a separate address, which we call the Priority wallet. The rest buys the token.

Priority is a separate payment from gas. Robinhood Chain charges each transaction a base fee and ignores anything offered on top. Robinhood says so in its chain docs: "increasing your fee will not shift your transaction ahead of others already in the queue." Our study of the chain's gas market found the same, and so did the trade receipts we pulled from July to September. Trades that offered a priority fee were charged the base fee and nothing more.

What Priority pays for is a relay, a service that forwards your trade to the chain over its own connection. According to axiom.exposed, which reads Axiom's app code, trades that pay go to a relay that turns away anything unpaid. Every trade also goes straight to the chain. On a first-come chain, a faster route can matter. bloXroute, a company that sells fast transaction delivery, offers one for Robinhood Chain and says it wins about 60% to 80% of test races against a plain send.

03 · The money$9.4 million in ten weeks

The first live payment landed on July 21, a few days after Axiom deployed the router it used until early September. By September 29, 81,473 wallets had paid 3,953 ETH for Priority. That was worth $9.43 million at the price of ETH on each day, taken from trades on the chain's own DEXs. The totals above $10 million price every payment at today's ETH, which is about 40% higher than in July.

Priority came switched on, and most traders left it that way. It went on 85% of all Axiom trades on the chain, and half of all payments were exactly 0.001 ETH. At launch the default was 0.0005 ETH. Early on July 23, over about three hours, it doubled to 0.001 ETH. From then on, 0.001 ETH was the most common amount on all but two days. The money came from a crowd. The top 100 wallets paid about a tenth of it, and the median wallet paid on 8 trades.

Payments rose and fell with trading. They peaked in the first week of September, when Axiom trading on the chain was at its busiest, at close to 300 ETH per day. Over the whole ten weeks the charge took slightly more ETH than Axiom's own 1% fee.

04 · One buyThe biggest line on the bill

Take a typical buy. In the first days of September, the median ETH buy through Axiom's router was about $66. The median is the buy in the middle when you line them all up. On that trade the default tip cost more than Axiom's fee and the gas put together, close to 4% of the buy. The same was true of more than four in five buys.

Across the ten weeks, traders paid about five times more in tips than in gas. Gas on the chain is cheap. The tip was not.

05 · The speed testDid Priority make trades faster?

That leaves the question the post on X raised. Did the money buy anything at all? On a first-come chain, the fair test is whether the paid route got trades there first.

Robinhood Chain makes about ten blocks per second and handled about 120 transactions per second in September. On a chain like that, landing first comes down to getting your trade to the sequencer, the machine that puts transactions in order, before the next trader does.

We could test that because every Axiom trade carries a deadline, a timestamp the app writes in when it builds the trade, usually a few seconds ahead. The gap between that stamp and the block the trade lands in shows how long the trade took to arrive. We compared trades that paid the tip with trades that did not, from the same wallet, in the same hour, going the same way. A small set of unpaid trades comes through a separate, slower route that paid trades never use. We left those out so they would not flatter Priority.

Trades that paid landed about 15 milliseconds sooner on average. That is about a seventh of a block, or roughly two transactions further up the queue. In August there was no gain at all. The paid trades did not fail less often either. In these matched groups they failed a little more.

So Priority did buy something. For a hand-clicked buy, 15 milliseconds is too small to notice. In a race at a token launch it can decide who gets in first. Our FOMO investigation found front-running bots on this chain buying within a second of the orders they targeted.

06 · The price of speedPaying more bought nothing

If Priority bought a place in line, paying more should buy a better place. It did not. Among paid trades by the same wallet, a 0.001 ETH payment landed no sooner than one under 0.0001 ETH, and amounts above the default were no faster either.

That settles what the money was for. The paid route gave a small head start, and the amount had nothing to do with it. Anyone who kept the default paid at least ten times more than they needed to for the same speed.

07 · The money trailWhere the money went

So where did it all go? The Priority wallet holds its ETH for days or weeks, then sends it on through two in-between wallets. It moved money out in 19 transfers, the last on September 24.

About four in five of those ETH ended up at one deposit address. Our address labels mark it as a KuCoin deposit, and its behavior fits. On Ethereum the same address sweeps its funds into KuCoin wallets listed in the exchange's proof of reserves. Another 629 ETH went to Ethereum through the chain's bridge, and almost all of it moved on to a wallet that has been active since 2024. At the end of September 29, 135 ETH was still in the Priority wallet.

Anyone can follow those transfers with the Bitquery MCP. What the chain cannot show is whose account sits behind them.

08 · Whose walletAxiom's fee and Priority go different ways

There are two readings of who gets the money. The tracking site axiom.exposed says Axiom's app code names the Priority wallet after Sherwood Express, a relay it says is run by Hello Moon, a separate company. We could not confirm that on-chain.

What the chain does show cuts both ways. The wallet was part of Axiom's testing before launch. Its first funder sent two test trades through an earlier Axiom router on July 12, each paying into it, and the wallet itself funded another wallet that ran test trades. But on Robinhood Chain and Ethereum, no money has moved between the tip side and Axiom's own wallets. Axiom's 1% fee goes to fee wallets that all pay into one address, on every chain.

That is two separate money pipes. It fits a relay company taking the payments, and it also fits Axiom running a second account. The ledger cannot tell them apart.

09 · Five more chainsThe same charge on five more chains

Robinhood Chain is one of six. The router that has handled Axiom trades there since early September sits at the same address on BNB Chain, Base, Arc, Ethereum and Ink. On each one it pays the same kind of flat charge into a separate wallet. The Ethereum version, which started on September 17, did not appear on axiom.exposed when we checked on September 30.

Each chain from its first payment to Sept. 29. Default: the most common amount paid. * Ink: balance on Sept. 30 from the public explorer; the wallet has never sent anything.

On Ethereum, BNB Chain and Base, fees do decide block order, through the gas priority fee that Axiom trades already pay. None of the Priority wallets has paid a block builder. The BNB Chain and Ink wallets have never sent a thing. The Arc, Ethereum and Base wallets each sent money out within 17 minutes of each other on September 24, and all of it reached Coinbase deposit addresses. The timing points to one set of hands.

10 · The answerWhat $9.4 million bought

Did Axiom charge traders $10 million for a feature that does not exist? The number is close. Traders paid $9.43 million on Robinhood Chain at the prices of the day, and about $650,000 more across the other five chains at today's prices. The feature exists, in a thin sense. The paid route got trades onto the chain about 15 milliseconds sooner, on average.

What the evidence does not support is the name. Priority suggests that paying more moves you up the line, and on this chain nothing does. A payment ten times smaller bought the same head start. On more than four in five buys, the default charge cost more than Axiom's fee and the gas combined, and it went to a wallet whose owner the chain cannot name. Anyone trading on Axiom should check what their Priority setting is.

11 · The recordAddresses behind the story

The Priority wallets, Axiom's routers and fee wallets, and the first stops for the money.

FAQ

What is Axiom's Priority fee?

It is a flat tip that Axiom adds to trades, on top of its 1% trading fee. On Robinhood Chain the most common amount has been 0.001 ETH per trade since July 23, after 0.0005 ETH for the first two days. It is paid inside the trade to a separate wallet.

Does a priority fee work on Robinhood Chain?

Not as a gas fee. The chain puts transactions in the order they arrive and charges only the base fee. Axiom's tip pays for a second route to the chain, which landed trades about 15 milliseconds sooner on average.

How much did Axiom's Priority charge collect?

3,953 ETH on Robinhood Chain from July 21 to September 29, worth $9.43 million at the price on each day. The other five chains added about $650,000 at September 30 prices.

Does paying more for Priority make Axiom trades faster?

No. In our data a 0.001 ETH payment landed no sooner than one under 0.0001 ETH, and bigger amounts were no faster.

Does Axiom keep the Priority money?

The chain cannot say. It goes to wallets that are separate from Axiom's fee wallets, and no money has moved between the two. A tracking site says that wallet belongs to a relay run by another company. We could not confirm that.