Palladium is very volatile. I bought 40 oz. for my wife at an average price of $540 and then it tanked. I bought 5 oz for myself at an average of $206. Now it's over $700.
It's an industrial metal and is being used to replace Platinum in catalytic coverters for automobiles. Who's buying autos these days?....Why China and India, of course. So it's going to continue to rise for a while. How long? Beats me. When it starts going down, I'll sell what we have and put the money into something less volatile, like gold bullion or silver bullion. It may not be as exciting as Pd, but who wants money that is exciting? That works both ways. I want my money to be stable and reliable, not something that roller-coasters like all fiat money.
For stability, consider opening a GoldMoney account. It's not subject to IRS, (it's based in Jersey Islands of U.K.) and if the dollar tanks, gold and silver will hold value. What else do you want from money?