Why is your Gold price different from other sources?
StockCharts Support January 26, 2009
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 of all 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.