In mid-2025, Topstep made a bet that could define its next decade: force every new trader onto TopstepX, a proprietary platform built on ProjectX technology, and kill support for NinjaTrader, Tradovate, and TradingView.
The bet hasn't paid off yet.
The timeline is damning:
Traders who were hitting consistent profits on NinjaTrader suddenly had to learn a new interface while their funded accounts were on the line. Some lost money due to execution issues they couldn't control.
The business logic is straightforward: platform dependency is a liability.
Topstep was paying licensing fees to NinjaTrader and relying on Tradovate's infrastructure for order routing. When your core product depends on third-party platforms, you're one API change away from disaster.
Owning the platform means:
ProjectX ended services to all platforms except Topstep at the end of February 2026. That exclusivity deal tells you the strategic intent.
Platform migrations kill companies when they break trust at the same time as other changes. Topstep didn't just swap platforms — they simultaneously:
Any one of these changes is manageable. All of them at once, during a platform that keeps going down? That's how you lose your best traders to competitors.
Stability has improved since early 2026. The daily outage reports have stopped. But the trust deficit takes longer to fix than the code.
Topstep's Trustpilot is still at 3.4 — down from 4.5 a year ago. That's not a rounding error. It represents thousands of traders who had a bad experience at exactly the moment they were being asked to trust a new platform.
We build trading technology. We understand why Topstep made this move — platform dependency is genuinely dangerous for a firm at this scale. The strategic logic is sound.
But execution matters more than strategy. You don't force-migrate funded traders to an unstable platform. You run it in parallel, let traders opt in, and earn the migration through performance.
Topstep chose speed over trust. That's a recoverable mistake — if they don't make another one.
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