Glossary

Sub-account

A sub-account is a separate margin and position container under the same Hyperliquid master wallet.

In short

A Hyperliquid sub-account has its own balance, positions and margin state while remaining owned by your master wallet. HyperMirror assigns one sub-account per mirrored leader so their positions never net against each other.

What isolation buys and costs

Isolation gives you clean per-leader attribution and prevents accidental exposure cancellation, so a leader's realised performance in your account is measurable.

The cost is margin fragmentation: capital committed to one sub-account cannot cushion another's drawdown, which is deliberate — a leader's failure stays contained.

Practical implications

Keep your own discretionary trades outside the mirrored sub-accounts, or they will interact with a leader's exposure.

Separate margin per sub-account, all under your own wallet.
One leader per sub-account in Full mode.
No cross-subsidy of losses between leaders.

Questions

Frequently asked

Do I control the sub-accounts?

Yes. They belong to your master wallet, and withdrawals remain wallet-signed.

How many sub-accounts do I need?

One per mirrored leader — up to 10 in Full mode, one in Starter mode.

Keep reading

NettingThe problem isolation solves.Sub-account isolationThe mechanism in full.

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