Hey traders,

Synapse Pro is a NinjaTrader addon, with free added functionality using Synapse Pro - NT listener and/or Synapse Pro - MT5 EA.

It handles trade copying, real-time risk management, and account monitoring across funded accounts with native integrations for all the regular prop firms, but also includes TopstepX and MT5 → NinjaTrader (and reverse).

You are also able to trade between NinjaTrader accounts (for example - if you have a business and personal account), which leads to the other piece of Synapse Pro:
- There is another aspect of copy trading that is totally possible with the Synapse from any trading using the Synapse Pro - NT listener (or MT5 EA). (But this is not for prop trading.)

Pricing is intentionally competitive, trading tooling has gotten expensive and I wanted to change that while still holding a quality product for yall.

Anyway I would love to chat and:
- understand where this excels and/or falls short
- what features you would like to see added or removed
- overall feedback and thoughts

Hopefully you all enjoy it and looking forward to discussions on it!

Thanks,

Joe

joeolk 

It handles trade copying, real-time risk management, and account monitoring across funded accounts with native integrations for all the regular prop firms, but also includes TopstepX and MT5 to NinjaTrader (and reverse).

@joeolk,

Welcome, and glad to see another developer building tooling for the prop trading space -- trade copying across funded accounts is genuinely useful and the existing options leave real room for improvement.

The piece I'd push on hard: how does Synapse Pro handle the different drawdown mechanics across firms? That's where these tools live or die in practice. Apex has a trailing max drawdown that locks in at the starting balance until you build cushion, TopstepX uses a different end-of-day trail, MFF has static drawdown -- each firm's risk model has its own clock and trigger logic. A copier that treats drawdown as just a number will blow accounts a human trader watching the dashboard would have kept alive.

Can traders configure per-account drawdown rules manually, or does the risk logic adapt to firm-specific mechanics automatically?

There's already solid discussion on where existing copiers fall short worth reading:
Replikanto vs Apex Trade Copier -- community comparison

For anyone running multiple funded accounts who wants the operational context:

https://nexusfi.com/a/prop-firms/funded-trader-operations-manual

-- Fi

"The trade copier that survives contact with five different drawdown clocks is the one worth keeping."

"Can traders configure per-account drawdown rules manually, or does the risk logic adapt to firm-specific mechanics automatically?"

- At the moment a trader can configure per-account loss limit (and all other features), but there is no trailing drawdown/loss aspect. So i would need to implement that as a new feature, which is doable.

Thats an interesting take, and i appreciate the response! I have another product (TradeLock) that does take into account trailing downdown vs static. So ideally i would be able to transfer the trailing logic over to the Synapse Pro for the accounts that have trailing drawdowns. But great point!! I will take this in as a feature to build, bc at the moment the Loss Limit is just a static number the trader puts in.

I appreciate you!

joeolk 

I have another product (TradeLock) that does take into account trailing downdown vs static. So ideally i would be able to transfer the trailing logic over to the Synapse Pro for the accounts that have trailing drawdowns.

@joeolk,

Good timing to architect this before coding it in. There's a wrinkle worth planning for.

Trailing drawdown isn't just "trailing vs static" -- it splits into two distinct mechanics that behave very differently:

• Intraday trailing -- the floor moves with every real-time peak, including unrealized P&L. Account hits $50,800 unrealized then closes at $50,400? The floor already moved up from $50,800, not $50,400. TopStep Combine and legacy Apex accounts work this way.
• EOD trailing -- floor only recalculates at end of day based on closed balance only. That $50,800 unrealized peak is ignored entirely -- floor anchors to the $50,400 close. TopStep XFA and Apex 4.0 (default since March 2026) use this.

Why this matters for Synapse Pro: a trader could be running 3x Apex EOD accounts alongside 2x Apex Intraday and a TopStep Combine simultaneously. Same firm, different trailing types -- you'd need a per-account config flag for which flavor of trailing, not just the number.

The implementation pieces you'd need:

• Per-account high-water mark tracked separately (realized-only for EOD, realized+unrealized for intraday)
• Per-account config flag: EOD or intraday trailing
• Floor rule: only ever moves up, never down

If TradeLock already handles intraday, EOD is actually the simpler case -- swap real-time peak tracking for end-of-day closed balance. Two flavors, one flag per account.

The NexusFi Academy has a breakdown of how these mechanics work across different firm types:

https://nexusfi.com/a/prop-firms/funded-trader-operations-manual

-- Fi

"The difference between intraday and EOD trailing isn't just a technicality -- it's the line between getting stopped out on a winning day and surviving it."