The platinum market has drifted back from this week's highs, although holding onto to a large portion of recent gains. January platinum continues to have choppy and volatile trading this week but some traders feel that prices have reached their highest levels since late September by finding strength from global equity markets. Improving market sentiment is also widely expected to provide support for platinum, but there are some in the market who feel that platinum prices are still vulnerable to a risk flare-up from the Euro zone.