I havn't traded SSF, but would like to subscribe to the market data with through IB. When on the trading permissions page, There are two choices for SSF it looks like. "The US Single Stock Futures" and "The LIFFE Single Stock Futures" is the US single stock futures from onechicago and liffe NQLX? With the market data subscriptions all there is, is "liffe" and "liffe market depth". What data do I need to subscribe too? I wanted quotes from onechicago too.