NinjaTrader trade copier that runs in the cloud

How a cloud NinjaTrader trade copier works

NinjaTrader is a front end: the orders you place in it are executed on an account held somewhere else. A NinjaTrader brokerage account runs on the same infrastructure as Tradovate. A prop firm account you trade in NT8 is usually a Rithmic account that NinjaTrader connects to. CopyFlock connects to those accounts directly, so it sees every fill no matter whether you clicked in NinjaTrader, R|Trader Pro or a mobile app.

When the lead account fills, CopyFlock sends the matching order to each follower according to that follower's sizing mode, symbol aliases and caps. Stops and targets are copied too if you turn on copy TP/SL. Because nothing runs inside NinjaTrader, your charts, indicators and ATM strategies are unaffected.

Why not an NT8 add-on?

Add-on copiers can work well, but they depend on one NinjaTrader instance staying connected on one machine. If Windows restarts for an update, the internet drops or NT8 freezes, copying stops. A cloud copier removes that single point of failure. If you are comparing options, our Replikanto alternative page sets out the differences honestly.

Which connection should your NinjaTrader account use?

Connect the account where it actually lives. The table below covers the common cases.

Set up copying for NinjaTrader accounts

1. 1

   Step 1: Start a free trial

   Create your CopyFlock account and start the 7-day free trial on 2 accounts. A card is required; cancel before the trial ends and you pay nothing.

2. 2

   Step 2: Connect the lead

   Add the account you trade in NinjaTrader as the lead, using the connection from the table above. Tradovate accounts sign in through OAuth; Rithmic accounts use username, password and system.

3. 3

   Step 3: Connect followers

   Add every account that should follow. Followers do not have to be on the same platform as the lead.

4. 4

   Step 4: Choose sizing per follower

   Use a contract multiplier of 1 for same-size prop accounts, equity-to-equity for different sizes, or fixed contracts if a follower should always trade the same quantity.

5. 5

   Step 5: Keep trading in NinjaTrader

   Turn the followers on and trade the lead in NT8 as usual. Check the dashboard and copy log after your first trade.

Features NinjaTrader traders use most

• Symbol aliases with per-symbol multipliers — trade ES on the lead and copy MES ×10 to a follower, or NQ to MNQ. There is no automatic mini-to-micro conversion; you set the alias once and it applies to every trade.
• Copy TP/SL — stops and targets from your ATM strategy brackets are copied as orders on followers.
• Block trades without TP/SL — protect followers from entries you forgot to bracket.
• Min/max and per-symbol contract caps — keep each follower within its firm's contract limits.
• Account protection — set balance or equity thresholds; reaching one flattens and pauses the follower.
• Position resync — re-align a follower after a manual intervention.
• Whitelist and blacklist — copy only the symbols you choose.
• Live dashboard and copy logs — balance, equity and P&L per account, plus a record of every copied order.

Sizing example: ES on the lead, MES on smaller followers

Many NinjaTrader traders run a larger account on minis and want smaller accounts on micros. One MES is one tenth of an ES contract, so an alias with a ×10 multiplier keeps the same exposure, and a ×1 multiplier gives one tenth of it.

Limitations to know

• CopyFlock does not connect to NinjaTrader itself. It connects to the Tradovate or Rithmic account behind it. Simulated NT8 accounts (Sim101 and playback) cannot be copied.
• Other connections are not supported. NinjaTrader connections through CQG and other data or order-routing providers are not supported, and neither are Quantower or Volumetrica.
• Follower fills are independent. Each follower order is sent after the lead fills, so prices can differ slightly from the lead's.
• ATM strategies stay in NinjaTrader. Copied stops and targets are plain orders on the follower, not an ATM strategy. Watch the copy log on your first trades to confirm followers handle your bracket style the way you expect.
• Check your firm's rules. Most firms publish their position on trade copiers; read them before copying. Our guide to prop firm copy trading rules lists what to look for.