How Arco works

1The basics

You pick a trader on Hyperliquid, and Arco repeats their trades on your wallet — automatically, around the clock.

1. Create a wallet on the dashboard.
2. Fund it with USDC.
3. Pick a trader in the screener and an amount per trade.
4. The trader opens a position — within seconds it opens for you too, at your scale. They close — we close.

Where the money is. On your own Hyperliquid wallet, not in a shared Arco account. The wallet is custodial: keys are held by Turnkey, a secure key-custody service. Trades are placed by a separate agent key that Hyperliquid's rules don't allow to withdraw. Withdrawals happen only on your request.

2How to deposit

1. Buy USDC on any exchange (Binance, Bybit, OKX and others) or use your own wallet.
2. On the dashboard, click “Deposit” on your wallet — you'll see the address and a QR code.
3. Withdraw USDC to that address on the Arbitrum One network only. When withdrawing from an exchange, pick “Arbitrum One” (sometimes labelled “ARB” or “Arbitrum”).
4. Keep the deposit window open. As soon as the funds arrive — usually in 1–5 minutes — Arco moves them to Hyperliquid automatically. You don't need ETH for network fees: we pay them.
5. When the window shows “Ready to copy”, you're done.

How much. The minimum to be credited is $5, but we recommend $100 or more. The minimum order on Hyperliquid is $10, and a trader often holds several positions at once. On a small account some of their trades get skipped for lack of funds, and your result stops tracking theirs.

Closed the window before the funds arrived? Just open “Deposit” again. Money that reached the address won't go anywhere.

3How to pick a trader

Big profit alone is not a reason to copy. In the screener, look at profit and drawdown together:

• Profitable over a month and over three months, not just a week — anyone can have one lucky week.
• Drawdown under 20%. Drawdown is how deep the trader's account fell from its peak. A 50% drawdown means at some point they lost half — and copying them, so would you.
• At least 5 closed trades — otherwise win rate and profit mean nothing.
• Not a bot. The “Hide bots” filter is on by default; leave it on unless you have a reason. Market-maker and arbitrage strategies can't be reproduced by copying.

Fit your balance. A trader may hold 10–15 positions at once, and each one needs its own collateral from you. The subscription window checks whether your balance covers all their current positions and suggests an amount per trade.

A good approach: start small and watch for a week how copying behaves on your account.

4Subscription settings in plain words

To start, pick the model, the amount and the leverage — everything else can stay as it is.

You can close any single position at any time: “Copy” → “Positions” → “Close”, or with a button in the Telegram bot.

5Why a trade wasn't copied

In “Copy” → “Order History”, turn on “Show skipped/failed” — each one has a reason. The most common:

• Not enough funds — the trader opened more positions than your balance allows. Deposit more or lower the amount per trade.
• Trade size below the exchange minimum ($10) — same story: the balance or amount per trade is too small.
• The trader added to the position — adding is off — that's your setting, not a failure.
• The trader closed a position you didn't have — e.g. they opened it before you subscribed.
• Stocks & indices: unified account not enabled — enable it on the dashboard next to the wallet.

The history also shows who closed a position: the trader, you manually, a stop-loss, an Arco safeguard (the trader no longer holds it) or a liquidation on the exchange.

6The 30% fee — with an example

There's no subscription. Arco takes 30% of new profit only — above the best result your wallet has already reached. That best result is called the high-water mark.

• It's calculated once a day at 00:00 UTC, and also before every withdrawal.
• Deposits and withdrawals don't count as profit: the mark moves with them.
• The whole account value counts, including unrealised profit on open positions. If a position later reverses, the fee isn't refunded — but no new fee is taken until the account exceeds the mark again.
• If less than $2 accrued in a day, the charge is carried over and accumulates until the next calculation.
• Each wallet is calculated separately.
• The fee is sent as a transfer inside Hyperliquid and shows up in your account history.

7How to withdraw

1. On the dashboard, click “Withdraw” on your wallet.
2. Enter the amount — no more than what's available. Funds held by open positions can't be withdrawn: close the positions first or withdraw the free part.
3. Enter the recipient address: your wallet or a USDC deposit address on an exchange on the Arbitrum network. Transfers are irreversible — double-check the address.
4. A moderator reviews the request. Once approved, the funds go out via Hyperliquid to Arbitrum — usually within a few minutes.

• Minimum — $2.
• Hyperliquid charges $1 per withdrawal; it's deducted from the amount.
• One request in progress per wallet.
• The profit fee since the last calculation is settled before the withdrawal.

8Risks — honestly

• A trader's past profit doesn't guarantee future profit. Good traders also have losing months.
• Leverage multiplies both profit and loss. On a strong move against the position, the exchange liquidates it and the collateral is lost.
• Some trades may be skipped: a small balance, your settings and the exchange minimum.
• The wallet is custodial: keys are held by Turnkey, and operations are signed by the platform.

9FAQ