Hedging between your own accounts
Most futures prop firms ban holding opposite-direction positions across your own accounts. Not just the same contract: the bans typically reach mini/micro pairs (long ES in one account, short MES in another) and correlated instruments (long ES, short NQ). The reasoning is the firms': offsetting positions neutralize risk while farming one side for a payout. Whatever you think of the reasoning, the rules are explicit, and a copier can violate them in one click.
The shapes these rules take
Hedging bans are among the most common prop-firm rules, but the wording differs from firm to firm, and so does how far it reaches. What you will typically find in a firm's rules:
- Directional trading only. Opposite positions in the same instrument across your accounts are banned, and so are mini/micro pairs of the same index, which most firms count as the same underlying.
- Correlated instruments. Some firms ban opposite positions across a whole product group, so long ES in one account and short NQ in another counts as a hedge, whatever the contract size.
- Partial offsets count. At some firms a partial hedge is still a hedge: long 2 ES in one account and short 1 MES in another can get both accounts liquidated.
- Beyond your own accounts. Some bans reach household accounts, other traders, and even accounts at other firms and platforms.
- Tolerances, rarely. A few firms publish a tolerance for brief accidental overlaps (a minimum duration or profit before a flag); most publish nothing at all.
- Silence. Some firms do not address hedging on their own pages. Ask support in writing before assuming it is allowed.
What this means when you copy
MirrorFill copies the leader's direction: every follower takes the same side as its leader, and no setting puts one on the other side. A copy group on its own therefore cannot build the offsetting pair these rules ban.
What can still put you offside is everything happening around the copier. Trading by hand in one account while a group copies into another, running two leaders that disagree, or leaving an old position open in an account you have since moved to a different group all produce exactly the exposure the firms describe. At a firm that bans hedging, that is a violation however it arose: some firms state plainly that a copier misconfiguration causing opposite positions is still one. Detection at many firms is automated and near-real-time.
Remember that mini and micro count as the same underlying at most firms, so a Cross order follower on MES is no way around the rule.
An offsetting position in a personal, non-prop brokerage account is a different situation: your personal account has no prop-firm rulebook. But check both sides anyway: some bans reach across firms and platforms, and your prop account is still showing one leg of an offsetting pair. When in doubt, ask the firm in writing.
Quick answers
Is same-direction copying a hedge?
No. Long ES in every account is exactly what own-account copying rules permit. The bans target opposite directions that offset each other's risk.
Can I be long ES in one account and short NQ in another?
Often not. Firms with correlated-instrument or product-group rules cover that pair explicitly. Check your firm's exact wording before you try it.
What if a fill sequence briefly leaves two accounts opposite?
A few firms publish a tolerance for accidents; most publish nothing. Fix any opposite exposure immediately and don't design a setup that produces it.