Ask HN: What data stores do stock exchanges use?

At IEX, we use kdb.

Here’s a blog post from a former employee at a new startup comparing kdb against some alternative databases for common operations on financial data: https://medium.com/prooftrading/selecting-a-database-for-an-...

Thanks, that write-up was very helpful.

Wow that's super interesting.

Thanks for sharing.

They might use kdb, not sure https://kx.com

Welcome to HN. It helps to prefix the question title with 'Ask HN:'. Those go to https://news.ycombinator.com/ask

Thanks!