Market indices

Every kind of item tracked as one number, from runes and herbs to raid uniques: see whether a whole market is rising or falling before you buy into it. Each index is one kind of item: its most traded items (up to 15, the whole market 50), chosen again every day by the gold that changed hands for them. It is 100 at the start of the period and every item counts equally, so a cheap rune weighs as much as an expensive one. The list shows the same with a bigger chart and the item that moved most; open an index for its chart over 7 or 30 days and every item in it.