Palladium raced ahead of all other metals in April. After climbing double digits in the first quarter, platinum and silver futures were down 4 and 5 percent, respectively. Both metals lost ground for the second consecutive month. Copper prices were flat, and gold seems to have lost its luster, posting its third straight monthly decline.
Gold gets all the headlines, but platinum is a better bet to put precious metals in your portfolio, Patrick Armstrong of Armstrong Investment Managers told CNBC.