Why funded traders copy
Once a strategy passes one evaluation, most traders run it on several accounts at once: a couple of funded accounts, an evaluation or two, sometimes across different firms. Placing the same order by hand on each one is slow, and the fills drift apart.
A trade copier fixes that: you trade one lead account and every follower receives the same order. The payout scales with the number of accounts — and so does every mistake.
First: check that your firm allows it
Rules differ by firm and change over time. Many firms allow copying between accounts that belong to you, and forbid copying someone else's trades or selling signals. Some cap how many accounts you may run at once.
Read the current rules on each firm's own website before you arm anything. Copying is a tool; the rulebook is still the one that decides whether you get paid.
Sizes: ×1 is not always right
A follower does not have to trade the lead's size. If the lead takes 2 NQ, a follower set to ×2 takes 4 and a follower at ×1 takes 2. That is useful when your accounts differ in size — a 100K account can carry more than a 50K one.
Size is where copying gets dangerous: a ×2 follower loses twice as fast. Set each follower against its own drawdown, not against the lead's.
The real risk: one bad trade, many accounts
Every funded account carries its own trailing drawdown and daily loss limit, and they are rarely in the same state. After a rough week, one account might have $1,500 of room left while another has $200.
A blind copier sends the same order to both. The trade that is a normal loss on the first account breaches the second. That is how traders lose several accounts on the same afternoon.
What a guard on each follower should do
- Check each follower before every new entry — its own drawdown room and daily-loss room, from its own firm's rules.
- Block entries, never exits — refusing a new or larger position is safe; blocking a stop or a close never is.
- Work account by account — one follower stepping aside should not stop the others.
- Say why — every blocked copy should carry its reason, such as “daily-loss room below $250”.
- Wait when in doubt — if a follower's day cannot be read, hold new entries on it rather than guess.
Rehearse before a single live order
Run the copier in simulation first: every signal is logged as if it were copied, and no order reaches a broker. Check the sizes, the accounts that would have been blocked and the reasons — then switch to live on the accounts you mapped yourself.
How Propbook does it
Propbook's copier is called PropSync. You trade the lead, each follower copies at its own size, and Guard checks every follower's drawdown and daily-loss room — the same numbers Propbook already tracks for the journal — before each new entry.
PropSync is in beta: setting it up and running it in simulation is free today. Pro (20 followers) and Elite (200 followers) open on 1 November 2026. TopstepX, MetaTrader 5 and NinjaTrader are in beta; direct Tradovate copying is in early access.
See Guard on your own accounts
Map a lead and its followers, then watch in simulation which copies Guard would block — free while PropSync is in beta.
How PropSync and Guard work →FAQ
Can I copy trades between two different prop firms?
Technically yes, when both platforms are supported — but each firm has its own rules on copying. Check both before you connect them.
Will a copier ever touch my stop-loss?
Propbook's Guard never does: it only refuses new or larger positions on a follower. Stops, targets and closes always go through.
Do I need a VPS to copy trades?
Not for TopstepX in Propbook, which runs on its servers. The MetaTrader 5 and NinjaTrader add-ons run on your own PC or VPS, which has to stay on while copying.
Is PropSync live today?
It is in beta: you can connect, map your accounts and run it in simulation for free. Pro and Elite open on 1 November 2026.