How VelociBridge Copies Your Full Bracket Structure Across Prop Firm Accounts
VelociBridge is a prop firm trade copier for NinjaTrader and Quantower that copies your entire bracket structure — entry, stop, multiple profit targets, OCO links, trailing stops, and manual adjustments — across Rithmic, Tradovate, TopstepX (ProjectX), CQG (micro contracts), and dxFeed accounts. If you manage multiple prop firm accounts and need to copy trades across all of them with brackets intact, this is what VelociBridge was built for.
The problem with flat copying
When you try to copy trades across multiple accounts, most trade copiers are execution-based. They wait for a fill on your leader, then fire a market order to each follower. That's it. The follower gets a position, but no stop, no targets, no bracket of any kind. Your leader is protected by server-side orders. Your followers are naked.
If your internet drops or the copier crashes right after entry, your leader is fine — its bracket is already resting at the exchange. Your eight follower accounts? Open positions with zero protection until you manually intervene.
Developers default to this approach because real order copying is hard. Placing the exact same stop and limit on a follower can get rejected if prices have moved even slightly. You can't copy queue position on a limit order. So they take the shortcut: market orders guarantee a fill, but they sacrifice the entire bracket structure.
The orphaned order problem
Even copiers that try to place "dummy" stops and targets on followers rarely maintain true OCO links. Here's where it breaks down: you're long 2 contracts with a stop for 2 and a target for 1. Your first target fills on the leader. The copier detects the exit fill and sends a market sell for 1 contract to the follower. But the follower's stop is still set to sell 2 contracts — because there's no real OCO reducing it. Price reverses, hits the stop, and now your follower sells 2: closes the remaining 1 contract and flips you short 1. One bracket fill just created an unintended position.
How VelociBridge handles this differently
VelociBridge is position-based, not fill-based. It doesn't wait for a fill and then fire a market order. It monitors position changes on your leader and detects when bracket orders are placed alongside them. When your leader opens a position with an ATM strategy in NinjaTrader or a bracket setup in Quantower, VelociBridge copies the position and then places the corresponding bracket orders on each follower — stops, targets, and OCO links — as real resting orders at the broker.
That distinction matters. Your followers aren't sitting there with naked positions waiting for the copier to react to exit fills. They have their own server-side bracket orders from the moment the position is created.
What gets copied
- Entry order (scaled by each follower's configured ratio)
- Stop loss at the actual price level
- 1, 2, or 3+ profit targets at their real levels
- OCO links between the stop and each target — real platform-managed OCO, not copier-software-managed
- Breakeven moves when your ATM triggers them
- Manual adjustments — move a stop or target on the leader, VelociBridge detects the order modification and propagates the new price to all followers
How OCO and partial fills actually work
Take the 2-contract scenario from above. Your leader is long 2 with TP1 for 1 contract at +8 ticks and TP2 for 1 contract at +16 ticks, plus a stop for 2. VelociBridge places that same structure on each follower (scaled by their ratio) with real OCO links managed by the trading platform.
When TP1 fills on a follower, the platform's own OCO mechanism reduces the stop — just like it would if you'd placed the bracket by hand. VelociBridge doesn't need to intercept the fill and try to modify the stop in software. The platform handles it natively because the OCO was real from the start. Your follower doesn't end up with a stop for 2 contracts when it's only holding 1.
VelociBridge then detects that the position changed due to a bracket fill (not a new trade from the leader) and skips re-copying. It won't see the leader's TP1 fill, misinterpret the position change, and try to open a new position on followers. The bracket fill detection keeps things in sync without creating duplicate orders.
Bracket modifications propagate
When you move a stop to breakeven on the leader, VelociBridge detects the order update and sends the new price to every follower. For Quantower followers, it modifies the bracket order directly. For NinjaTrader followers on a different platform, it sends the modification over TCP. You move one stop, all followers update.
Same for target adjustments, tightening stops, or any manual bracket change. The follower brackets track the leader's bracket state, not just the initial placement.
Works across different data feeds
Your leader can be on Rithmic. Your followers can be on Tradovate, TopstepX (ProjectX), CQG (micro contracts), dxFeed, or any mix. VelociBridge works as both a Rithmic trade copier and a Tradovate multi-account copier — and bridges across whatever connections NinjaTrader and Quantower support, including between the two platforms.
That means you can copy from a Rithmic leader in Quantower to Tradovate followers in NinjaTrader, or any other combination. NinjaTrader multi-account setups with mixed feeds work the same way — you don't need all your accounts on the same data feed. TopstepX copy trading works through the same mechanism since TopstepX connects via ProjectX/Rithmic infrastructure.
Local execution, not cloud
VelociBridge runs on your machine or VPS. It connects directly to your NinjaTrader and Quantower instances and issues orders through them. No cloud server in the middle, no broker API keys to hand over, no rate limits from routing through a third-party API.
The tradeoff: your PC or VPS has to be running. If your machine goes down, copying stops. But bracket modifications don't need to round-trip through someone else's infrastructure. For a detailed breakdown of how this compares to cloud copiers and NT-only add-ons, see the feature comparison.
Works with TradingView
VelociBridge monitors your leader account inside NinjaTrader or Quantower. It doesn't care where the trade came from. If you initiate from TradingView and it hits your leader account through your platform's TradingView connection, VelociBridge copies it to all followers with the full bracket structure. It's not a dedicated TradingView plugin — it copies whatever appears on your leader, regardless of source.
Have questions about setup or compatibility? Check the FAQ or reach out through support.