Right now (12/06/22 1:46pm ) i'm seeing JUN 22 US500 futures only available to close, not for creating a new position as it's close to expiry (on 17th) but no JUL 22 is yet available to trade. If I want to increase my position size I only have the cash option available. Is there a rule or calendar published that describes when future months become available to trade as we approach expiry?
Thanks
pr