EVE Online Market Trends

How it works: We compare the average price/volume of the last 3 days against the 30-day baseline. Hot = price up > 5% with volume not collapsed. Falling = price down > 5% with volume still alive (drop < 30%). Items with baseline volume below 100/day or price below 1,000 ISK are filtered out as noise.

How price changes by category are calculated

For every item the page compares the median daily price of the last three days with the same three-day median 7 and 30 days earlier, using the ESI price history of the selected hub. Three days instead of one keep a single odd trade on a thin market from moving the numbers.

A category's change is the average of its items weighted by daily ISK turnover — in effect, how the price of everything traded in that category moved. An item counts in its own group and in every group above it, so a top-level section like Ships covers all ships at once.

Items that trade less than once a day or on fewer than 10 days out of 30 are skipped, as are days with a tenfold spread between the highest and lowest trade and moves of more than 100%, which are almost always data glitches. A category needs at least 5 items with a price change to get a number.

The up and down counts show how broad the move is: a category can rise because one expensive item jumped while most of the rest stood still.