Platinum and palladium rallied Tuesday on news of a Johnson Matthey report citing supply shortfalls for the metals and of violence erupting during a strike at an Anglo American Platinum mine in South Africa. Spot palladium prices surged 4.28% to $639 an ounce. Spot platinum rose 1.02% to $1,589 an ounce. ETFS Physical Palladium Shares (PALL) vaulted 4.6% to 62.58. But it's trading below both its 50- and 200-day moving averages, which is bearish.