If anybody knows, how does one trade these two contracts on IB? I am not sure how the time difference between both exchanges and how long each contract is open for trading electronically. I also notice gaps in both charts everyday it seems. Is there a way around it ? A chart that holds both prices together ? Also, is it possible to open a position in Chicago ETHs and close in Singapore ETHs ? How can one possibly hold a position overnight with so many large gaps at every open? Too many questions, but any help would be appreciated. Thanks.