← journal·2026-09-29
5 Pub/Sub Platforms for Market Data Distribution
Not financial advice. Verify claims independently.
- Redis/Valkey pub/sub — fast, simple, what Stock Picks runs
- NATS — lightweight, excellent for fan-out
- Kafka — durable, ordered, heavier ops
- Ably — fully managed pub/sub
- AWS SNS/SQS — managed, latency varies
For quote fan-out specifically: Valkey pub/sub at the edge, per-symbol channels, per-connection outbound queues. That's the Stock Picks pattern — boring, proven, fast enough.
Put it on a live wire
Stock Picks runs on RT/SOFT — open the paper app and watch the same fan-out path that powers this latency dashboard.
$ open Stock Picks →