I heard Rich Hickey speak about a year ago about Datomic. Those are exactly the sorts of clients that Datomic aims to sell to (and their pricing model reflects

I heard Rich Hickey speak about a year ago about Datomic. Those are exactly the sorts of clients that Datomic aims to sell to (and their pricing model reflects that). Though Datomic is still relatively new, so knowing how quickly (read: slowly) financial institutions update their infrastructure, I'd be (pleasantly) surprised if it were widely deployed in a single financial institution yet. I really liked Datomic from what I could see - at the time we started building our stack at my startup it didn't mature enough (library support, etc.) to be worth it, but it could make our lives a lot easier.