Hi folks, I currently trade mostly futures but would like to wade more into the cash fixed income space, particularly sovereign bonds. I would require leverage as am looking to do some curve trades. I am currently with Interactive Brokers and notice that the spreads on government bonds, even very liquid markets like US ten year treasuries, are much significantly wider than for the equivalent futures. IB says that they bake into the price the bond trading platform fees. I am wondering how different brokers are from one another in this regard and which brokers other fixed income traders would recommend.