How a Real time market data feed fits into a modern trading stack
Ask ten traders about the ideal real time market data feed and you will get eleven answers. Here is the framework we use to cut through the noise.
What a real time market data feed actually does
At its core, a real time market data feed solves one job: automation and integration. Everything else — the dashboards, the integrations, the marketing — hangs off that single responsibility.
Automation amplifies whatever you feed it, so a real time market data feed magnifies good logic and bad logic with equal enthusiasm.
What to look for
When you put a real time market data feed through its paces, weigh it against the things that bite in production rather than the ones that demo well:
- Rate limits, and how gracefully the client backs off
- Reconnection and gap-recovery on dropped connections
- Idempotency on order placement to avoid duplicate fills
- Quality of the SDK docs and example code
- A realistic sandbox or paper-trading environment
Common mistakes
The usual trap is optimising for the happy path. A real time market data feed that looks great on a quiet Tuesday can fall apart the moment volume, volatility or fees spike — which is exactly when you need it most. Test it under stress, with adversarial inputs, and on the messiest data you can find.
The bottom line
Run any real time market data feed in paper or at tiny size first. The marketing page never mentions the failure modes — your own logs will.
