Platinum may be finding carryover support from the strong gains in gold prices during overnight trading. In addition, rising Euro zone optimism, a weaker dollar and sharply higher equities have also been seen as providing platinum with support this morning. With very positive US holiday sales talk after the Black Friday weekend, platinum may benefit from a very favorable physical commodity market environment at the start of the new trading week. A major credit rating agency warned that the current debt crisis could threaten the sovereign debt ratings of all Euro zone nations, which may strengthen investment platinum demand from the Euro zone through the rest of 2011.