Copy trading rests on one assumption: that a wallet's history tells you something about its future. Traders arriving on Robinhood Chain from $ETH hit the problem immediately, because on a chain this young that assumption has almost nothing to stand on.
The tooling works and the wallets are visible. The records are weeks deep. Here is how to screen when history is the one thing you do not have.
A short record is not a bad record, it is a thin one
The distinction matters. A wallet with two hundred trades over a year has been through several market moods. A wallet with thirty trades has been through one.
Neither is disqualifying. What changes is how much weight the numbers can carry. Thirty profitable trades in a single trending period is a sample small enough that luck explains it comfortably, and you should size as though luck explains it.
The practical response is not to avoid new chains. It is to stop treating early performance as evidence and start treating it as a hypothesis you are paying to test.
Look for the same trader elsewhere
The most useful signal on a young chain often sits on an older one.
Many addresses trading actively on a new network belong to people who have been trading somewhere else for years. If the same trader operates visibly on $SOL or Ethereum with a longer record, that history is worth more than anything the new chain can show you.
Tools that cover several networks at once make this easier to check, since you are looking at one interface rather than reconstructing a person across three explorers. Banana Gun covers Robinhood Chain alongside Ethereum, Solana, Base, BNB Chain and MegaETH, which puts the comparison in one place.
Where you cannot connect the wallet to any longer history, treat it as a genuinely unknown counterparty and size accordingly.
Behaviour reads faster than performance
Profit needs a large sample before it means anything. Behaviour does not.
Inside twenty or thirty trades you can already see how a wallet operates. Does it size consistently or does it swing wildly between tiny and enormous positions? Does it hold for hours or seconds? Does it buy into moves already running or does it get in before them?
None of that tells you the wallet is profitable. All of it tells you whether the wallet is copyable, which is the question you actually need answered first. A brilliant trader whose style you cannot follow is worth less to you than a decent one whose pace you can match.
Consistency in position size is the single strongest early tell. It suggests a person with rules rather than a person reacting.
New chains attract a specific kind of activity
Be honest about who shows up early on a fresh network. Some are traders. Some are there to farm whatever the chain eventually distributes, and their on-chain behaviour looks like trading without being trading.
A farming wallet makes many small transactions, often round numbers, often at regular intervals, often in tokens with no real interest behind them. Copied, it produces a stream of trades that cost you fees and go nowhere, because the wallet was never optimising for price in the first place.
The screening question is simple enough to ask out loud. Does this wallet look like it is trying to make money on the trade, or trying to accumulate a record of transactions? The two patterns separate quickly once you know to look.
Size for the uncertainty you actually have
Everything above leads to one adjustment: the position size you would use on a wallet with two years of history is not the size to use here.
Set a fixed buy amount low enough that the whole experiment is affordable if the wallet turns out to be noise. Bound what gets through with market cap limits, so the wallet cannot pull you somewhere you would never have gone yourself.
Then let it run long enough to build the sample you were missing.
That is the real opportunity on a young chain. Not that the wallets are better, but that fewer people are watching them, and you get to build your own record of which ones are worth following before the crowd arrives.
The cost of being early is that you are paying for information. Size the position so the information is worth what it costs.
How long do you give a new wallet before you decide it is working?
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