This page gives detailed information and graphs about a market list.
Both price indices are used as a comparison to the "official" figures in the Econ Dev Blogs and QENs, and as a more complicated model.
Dynamic lists (for example: Biggest Movers Today) do not contain a predefined group of items, but their contents changes on a regular basis. When history is shown for these lists, it is the history of the current item set that is used.
Market group lists are also considered to be dynamic lists - although their contents does not change with any particular frequency!