Probably mis-represented myself. For my sins 30 odd years of MS stack. Doing exactly the money market stuff you're talking about (50bn$ PnL system on last job). I know you know, but how many people understand the transaction isolation model in SQL server (or how to write your own transaction compensator?). Wtf when a supposed DB admin won't allow MARS. Deeper knowledge, deeper understanding. You can't argue - I kinda Know this is you.