i would love to see total open interests on unique options contracts (and futures too) from within IB TWS, but don't think its available. right now to get the info I go to either my etrade account or yahoo finance. is there a 'best' source of open interest data that is updated real time? us stock options are the biggest point of interest of course. I would love it to be within TWS, but it doesn't look possible. anyway, also anyone know how do show option volume graphs that denote individual contracts as well? would love to see when a particular spike relates to a certain options contract - right now, i deduce what traded in any noticable volume by looking at a spike on the options volume graph in the particular security, then going to optiontrader and looking for matching volume. Kind of crude.