How to Copy Trade Onchain: The Steps Nobody Writes Down

Most writing on copytrading stops at choosing a wallet. That is the interesting half and the smaller half. A well-chosen wallet wired up carelessly loses money, and the ways it loses are boring and repeatable, which means they are avoidable.

Step 1: pick the wallet, then verify it yourself

Leaderboards rank by realized profit and win rate. Both are backward-looking and both can be produced by luck over a handful of trades. Before you follow anyone, read the trade count, the average position size and the hold time, then open two or three of their trades on the explorer and check that the story matches.

Hold time matters more than it looks. A wallet that scalps in ninety seconds is running a strategy you cannot copy with a bot that reacts in five, no matter how good the wallet is.

Step 2: pick the vehicle

There are three shapes. A terminal with copytrading built in keeps the feed and the execution on one screen. A Telegram bot puts the trades where your alerts already are, at the cost of custody in most cases. An alert service copies nothing and only tells you what happened, leaving the decision to you.

Step 3: the four settings

Position size, as a fixed amount

Bots offer two modes: a fixed amount per copied trade, or a percentage matching the leader's. The percentage mode reads as the faithful one and is the trap. Their position sizing reflects their balance and their conviction; a wallet ten times your size taking a two percent swing is asking you for twenty percent of yours.

Slippage, which is the price of arriving late

You are, by construction, behind. The leader's transaction has to land, be observed, and be answered with yours. On a chain producing a block roughly every hundred milliseconds that gap is small, but on a token that moves on every fill it is not nothing. Setting slippage high enough to always fill means agreeing in advance to whatever price your delay produces.

The token filter

A good trader has more than one strategy. The wallet you admire for its launch entries also parks capital in blue chips, rotates stablecoins and occasionally buys something for reasons you would not endorse. Filters – minimum liquidity, minimum age, a category – let you follow the part of their behaviour you actually wanted.

Exit mirroring, the one that decides everything

If the bot copies buys and not sells, you have not copied a trader. You have taken a stream of entry signals from someone whose exit discipline was the reason they made money. Their round trip becomes your position, and you are now holding it with no plan, because the plan belonged to them.

Step 4: what still goes wrong

• The leader's fill and yours differ enough that a trade profitable for them is flat for you. This is normal and it is the cost of the approach, not a fault.
• They add to a position and your bot reads it as a new entry, doubling you in.
• They exit into liquidity that your exit, moments later, no longer finds.
• They stop trading. A wallet going quiet looks identical to a wallet waiting, and the bot cannot tell you which it is.
• They know they are watched. A public address with followers is an address that can be traded against on purpose.

Step 5: size the first week as a test

The first week measures your configuration, not the wallet. Run an amount you would shrug off, then read the result as a comparison: how did your fills compare to theirs, how many trades did the filter block that you would have wanted, how many sells arrived. Adjust once, then leave it alone long enough for the sample to mean something.

What the fee stack actually is

Four layers, two of which apply on the way out as well. A strategy that clears them has to win by more than it looks.