For anyone familiar with the continuous contract indices ($WTIC, $NATGAS, $GOLD, etc) on stockcharts.com, aren't they supposed to represent the front month contract at all times? Taking a look at the crude chart today, it shows oil closing at $58.16, or $2.50 higher than where the front month closed on NYMEX: Link to chart I've seen this issue happen a lot lately where large movements are not reflected in the continuous contract indices (and currency indices such as $XEU). Is there another free data source for the continuous contracts to compare the daily charts? Does IB offer the continuous contracts in TWS? Thanks. Edit: I tried google first before posting, then toyed with the search string and found the answer: "Like all of our commodity indices, our $GOLD symbol is not technically a gold price at all. It is an index value that corresponds to a theoretical, non-tradable "continuous" contract for gold that uses a weighted average all of the currently open gold contracts. It is provided on an end-of-day basis so that users can compare gold's mid- to long-term performance and trends to other markets. It should not be used to make trading decisions concerning gold itself." Hmmm, I know at least eSignal (and others) represent the continuous contract as the continuous front month, which seems like it would be far more beneficial than a weighted average.. I can't seem to find if IB has them as well.