Best-performing metals as hard to trade as they are to find

Even if you’d heard of this year’s best-performing metals, betting on them would probably have been a struggle. Ruthenium, iridium and the somewhat better-known rhodium — used mostly in specialised products like hard disks, spark plugs and autocatalysts — have trounced almost all major commodities tracked by Bloomberg. Prices are up at least 33 percent […]