How copy safety works
The guards that keep a follower from over-exiting, flipping sides, or fighting your manual trades.
The Trade Copier is built to protect follower accounts, not just mirror orders. Several guards run on every copy action so a follower cannot over-exit, hold a surprise opposite position, or trade against you during a broker outage. This page explains each one.
Exits are capped to what the follower holds#
When the leader closes, the copier never exits more than the follower actually has open. If the leader closes 5 contracts but the follower holds 2, the copier closes 2. This stops an exit from overshooting and flipping the follower into a new position on the other side.
Close-only correction on divergence#
If a leader event and the follower's state disagree, the copier corrects the action to close-only. It reduces or closes the follower's position rather than opening a new one. When state has drifted, the safe move is to unwind, not to add risk.
Opposite-side hedging is blocked#
In a normal (non-reverse) group, a follower should sit on the same side as the leader. If a follower would end up holding the opposite side, that usually means it missed the original entry. The copier blocks that symbol on that follower and quarantines it, so a later leader trade cannot open a surprise opposite position.
Quarantine is per follower and per symbol. Other symbols on that follower keep copying normally. A reverse group expects the opposite side, so this block does not apply there.
The Failed Exit Queue#
If a follower exit cannot be placed, often because the broker is briefly unreachable, the copier does not drop it. It saves the exit and retries with backoff, spacing out attempts so it does not hammer a broker that is still recovering. Saved exits are kept for 7 days, so a position still gets closed once the connection returns.
The copier works to close positions for you, but it is not a substitute for watching your accounts. If a broker outage runs long, check your positions directly at the broker and close by hand if you need to. Keep loss and drawdown limits set on every account. See Risk Management.
The Sync Divergence Guard#
During a broker connection issue, your positions can change outside Lune. You might log in to the broker and flatten an account while Lune is disconnected. When Lune reconnects and sees the follower's state no longer matches, the Sync Divergence Guard pauses copy trading for that account.
- It pauses only the automated copy activity on that account.
- It self-heals. Once positions line up again after reconnection, the guard clears on its own.
- Your manual trading is never affected. You can always trade that account by hand.
The guard exists so the copier never fights a change you made yourself during an outage.