Palladium prices have never known such glittering heights. The silvery-white precious metal is now $1,351.40 an ounce: more expensive than gold ($1,283.75 an ounce) or platinum ($792.30 an ounce), and just a little cheaper than iridium ($1,460 an ounce) and rhodium ($2,460).
As Bloomberg reports, palladium has surged around 50% in the past four months. A decade ago, it cost less than $200 an ounce.
About 80% of all palladium winds up in the exhaust systems of cars—it helps turn nasty pollutants into more benign water vapor and carbon dioxide. (The metal has also occasionally been used for jewelry, particularly during World War II, where a scarcity of platinum led it to be used in wedding bands.)