XPD/XPT: what to know
The XPD/XPT rate shows how much XPT you get for 1 XPD. Right now, 1 XPD buys 0.7226 XPT at the mid-market rate. In the other direction, 1 XPT is worth 1.3839 XPD.
In the short term XPD is driven mainly by auto demand and tight supply, while XPT responds to industrial (auto) demand and supply.
Palladium is used mainly in petrol-engine catalytic converters. Platinum is rarer than gold and vital for catalytic converters.
Because this pair involves a precious metal, the rate reflects global bullion prices per troy ounce. Use this mid-market figure as your benchmark: compare it with the rate your bank or broker quotes, and the difference is the margin you would pay.