Engineering · May 12, 2026
The case for an in-house charting engine
Every prop firm we talked to was running on the same three vendors. We built our own engine so partners could stop sharing a fate.
7 min readVera Charts team
Engineering notes, architecture explainers, and field reports from running the platform that prop firms run on. No SEO filler. No listicles. Things we'd want to read.
One upstream connection per symbol, fanned out server-side to every browser tab that wants it. Here's how the math works and why it matters.
A rule that only lives in your back-office gets enforced after the breach. A rule that lives in the chart gets enforced before it.
A simulator that always fills you at the touch isn't training, it's flattery. Here's the model.