If I get it right, "Sig" buys short dated treasuries in US dollars for totally another purpose, he's not bothered by negative interest rates. Short term treasuries in EUR offer negative yield too, so that's not an answer. I've never found an easy turnaround, every solution has risks potentially greater the 1.1%/y. As far as I know, only solution is using multiple brokers (not 100% satisfactory, I know....). Just to let me know, has IB confirmed the limit of 100k EUR is evaluated at the sub account level?