According to this: http://www.cbot.com/cbot/docs/42770.pdf the overnight screen is open. PLUS Qcharts has charted the ZB since the usual night open...it's trading at 108 '29. I sent an e-mail to IB cust. service but I haven't heard from them yet.
looks like ZB / ZN / ZF are trading .... IB thinks that traders in USA will be able to trade these products after 12:45 - 1 am approx EST daily system reset
I wonder if IB will change their "all inclusive" commissions for (E)CBOT contracts. Exchange fee for YM (mini-dow) is $0.30 (per side) lower than before. Now IB should not charge more than $2.10 (per side) for YM. Wasn´t there a rumor like "$2.06 per side" here on ET ?