Tradovate vs Rithmic/ProjectX: Why Multi-Bracket Copying Breaks
If you rely on multi-bracket exits (multiple targets + protective stop), copying those structures across accounts is where many "simple copier" setups start to fail—especially when the workflow crosses Tradovate Group Trade and Rithmic/ProjectX environments.
This post focuses on documented constraints and the practical failure modes traders run into.
1) The hard stop: Tradovate Group Trade does not support ATM/Bracket strategies
Tradovate's own support documentation states that Group Trade does not support ATM Strategies (their bracket/ATM automation). This limitation is confirmed in Tradovate's community forum.
Apex Trader Funding's Tradovate Group Copier documentation repeats the same limitation and explicitly directs traders to NinjaTrader if they want to use ATM/bracket logic.
Implication: If your process depends on "entry + attached bracket/ATM," you cannot rely on Tradovate Group Trade to carry that structure automatically.
2) Order validation breaks copying more often than people realize
Even when a copier attempts to replicate stops/targets, it can fail when the destination broker/feed rejects the order as invalidly placed.
Tradesyncer documents a concrete example:
- Buy Stops must be above last price; Sell Stops must be below last price.
- Buy Limits must be below current price; Sell Limits must be above current price.
If placed incorrectly, the order "will not be copied," and Tradesyncer attributes this behavior to broker/feed support limitations across Rithmic, ProjectX, and Tradovate.
Implication: A single "bad" placement or a fast moving market can produce orphaned or mismatched exits across accounts.
3) API-driven copying can hit Tradovate rate limits
If your copier is API-based (cloud or local), Tradovate rate limits can become the bottleneck—particularly if you are managing multiple accounts and generating lots of modify/cancel events.
Tradesyncer's Tradovate limits article lists:
- 5,000 requests/hour
- 80 requests/minute
…and explains that once exceeded, the API stops accepting new commands until the limit resets.
Implication: Rapid bracket modifications (move stop, scale-outs, cancel/replace) across multiple accounts can fail purely due to request volume—not because your strategy is wrong.
4) "Out-of-sync" order states can be a connectivity symptom
When traders see strange "stuck" order states (often described as orange/unmanaged behavior in some workflows), one common cause is connection disruption during order routing.
NinjaTrader support notes that this typically occurs when there is a connection disruption between the machine and the order routing servers during a trade.
Implication: Even a short disruption at the wrong moment can desynchronize multi-leg order structures.
Practical mitigations (regardless of tool)
If you're trading multi-account and want bracket-like control, these steps reduce avoidable failures:
1) Assume Group Trade won't carry ATMs/brackets
If you need ATM-style automation, plan your workflow accordingly.
2) Avoid invalid stop/limit placements during fast moves
Ensure stops/limits obey "above/below market" rules at the moment they are submitted.
3) Minimize high-frequency modify/cancel storms
If you are hitting rate limits, reduce automation churn (fewer rapid edits, fewer accounts per leader action, or tooling that reduces API dependency).
4) Treat connectivity as a risk factor, not an edge case
Have a plan for what you do when you suspect routing disruption (flatten rules, alerts, redundancy).
Where VelociBridge fits
VelociBridge is built for traders who want multi-target / bracket-style management replicated across accounts without relying on Tradovate Group Trade's ATM capability and without depending exclusively on cloud/API copying.
Because VelociBridge runs locally through your NinjaTrader or Quantower platforms, it can preserve bracket structures that cloud-only copiers often lose.
Want to test VelociBridge?
Join the beta and see how bracket copying works in your setup.
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