How Copy Cat works

Reading a wallet

The first time we see a wallet we pull its last 400 transactions from Helius and read the wallet's own balance changes in each one. One token going up while SOL goes down is a buy. One token going down while SOL comes in is a sell. Fees and token account rent count on the SOL side. Transfers, airdrops, stablecoin moves and token to token swaps are ignored, so pump.fun, PumpSwap, Raydium, Meteora and trading bots that route through them all read the same way.

From those swaps we track cost basis per token. Selling part of a bag realizes that share of its cost. Sells of tokens bought before the window we can see have no basis and are left out of PnL. Open bags are marked at the current price; a token no venue prices is marked at its last fill for an hour, then at zero.

The Cat Score

One number from 0 to 100 that answers: is this wallet worth copying from a few seconds behind? It is built from five parts.

The sum is then damped. Sample size: the score is multiplied by 0.35 plus 0.65 times closed tokens over 20, so a wallet needs 20 closed tokens to keep its full score. Recency: no trade in 2 days keeps 100%, in 7 days 85%, in 30 days 70%, otherwise 55%.

Then capped. A wallet with zero or negative realized PnL tops out at 30. A wallet that holds under 30 seconds on average (bot speed) or shows more than 2,500% return (outlier) tops out at 25. A wallet whose buys average under 0.1 SOL (dust) tops out at 35, because copying crumbs at a real size is a different trade. Flags you will see on profiles: thin (under 5 closed tokens), stale (quiet over a week), one hit (over 80% of winnings from one token), bot speed, outlier and dust.

Them vs you

Every profile shows what copying would have done. The simulation buys the first time they buy a token they did not already hold, at their price plus a lag penalty and a fee, and sells the same share of the bag whenever they sell. A sell of more than 90% of their bag is treated as a full exit. Open bags are marked at current prices. The headline number on the board assumes 1 SOL per copy, 2% lag and 1% fees a side.

How a copycat trades

Every leader with a copycat, plus the top of the board, is on a Helius webhook. Their transaction reaches us a second or two after it lands; we parse it, store the swap and run that leader's copycats immediately. A sweep every 15 seconds catches anything the webhook missed, handles Sell now presses and checks exits. A scan every minute keeps the board fresh and adds a few new active traders every two hours.

For each new leader trade a copycat decides once, and the decision is logged with its reason. Each leader trade can only ever be acted on once per copycat.

• They buy: skipped if we saw it later than your limit, the mint is blocked, their buy is under your minimum, you already hold it (unless copying adds and under the per token cap), you are at max positions, today's loss cap is hit, the size is under 0.005 SOL, cash is short, or a market filter says no. Otherwise your copycat buys.
• They sell: nothing happens unless you hold it. Then it depends on your sell mode: mirror sells the same share of your bag that they sold of theirs, full exits on any sell, off ignores their sells.

Every setting

Presets in the ticket: Cautious (0.05 SOL, full exits, 25% stop, 20% trailing, 100% take profit), Balanced (0.1 SOL, mirror sells, 40% stop, 48 hour max hold) and Shadow (10% of their size, copies adds, no stops).

Exits

Every 15 seconds each open position is marked at a fresh price and checked in this order: take profit, stop loss, trailing stop (a drop of your chosen percent from the best value the position reached, once it is above cost), and max hold. The first one that trips sells the whole position. Sell now on a position queues a full sell for the next pass. Close all sells everything and pauses the copycat.

Paper, live and keys

Every copycat starts on paper with a bankroll you pick. Paper buys and sells fill at a live Jupiter quote for your exact size, so price impact is real even though no SOL moves. You can reset a paper copycat to a fresh bankroll any time.

Each copycat also has its own Solana wallet, made when you create it. The private key is encrypted with AES-256-GCM before it is stored and only decrypted by the keeper to sign that copycat's swaps. To go live, close any paper positions, deposit SOL to the copycat wallet from its page (enough for one buy plus 0.02 SOL) and flip the switch. Live swaps route through Jupiter and keep 0.01 SOL back for fees and rent. Withdraw sends every spare lamport back to the wallet that created the copycat. The desk can pause live trading for everyone while paper keeps running.

Risks

• Past results do not repeat. A wallet can change strategy, get lucky, or stop trading.
• You fill after the leader. In fast markets that gap can turn their win into your loss.
• Memecoins can lose all liquidity at once. A stop loss sells at whatever price exists, which can be zero.
• Copycat keys are held by our server so it can trade for you. Only deposit what you are ready to lose, and withdraw when you are done.
• Nothing here is financial advice.

FAQ