Rollover date question

[NinjaTrader_Kyle]

Hello,

Thank you for your post.

ZB would move to the 03-13 expiry on 11/30. If you're ever curious as to when an instrument rolls over:
Open the Instrument Manager by clicking Tools > Instrument Manager.
In the Manager, select the instrument from the list on the right then click Edit to open the Instrument Editor.
In the Editor, navigate to the Misc tab and scroll down to the Contract Months section - select that property then click the '...' button which appears.
In the Contract Months menu, select a contract and check the roll over date.

[nepenthean]

Hello.


When is the rollover date (range) for ZB 12/12? Is it always a certain time in the month preceding the expiration month or is it a range of time in the expiry month?



Thanks!!!