This is the closest I've gotten to solving the problem so far: http://www.interactivebrokers.com/en/software/tws/usersguidebook/getstarted/add_market_data.htm "Note: If you add a market data line for a derivative instrument, TWS will ask if you want the underlying symbol added to the page. If you answer yes, it will be included above its derivative." If you answer "remember my decision", it will ALWAYS add the underlying symbol. My friend checked "remember my decision", and clicked "yes", and now every time he adds a future, it adds the underlying symbol. I've been trying to find the settings menu to disable this for the past half hour. I don't think TWS meant "remember my decision forever" but then I also have to find that menu where you revert the decision. Nothing here either: http://www.interactivebrokers.com/en/software/tws/twsguide.htm Nothing in the TWS help... this is a nightmare. Never ever click "remember my decision" unless you know how to revert it.