 Knock, knock. Is anyone still there at the BOJ office? 10-year JGB yields are rising up to 0.52 and pushing the boundaries of the upper limit set out via last months policy tweak i.e. 0.50 currently. Be reminded that the central bank bought roughly 5 trillion of bonds on Friday - its largest daily operation on record - and also stepped in with another 1.3 trillion worth of purchases today.Is the market pressur... 