Any price dip has been quite well supported by fund buying, and aggressive selling has been discouraged. The positive sentiment remains very strong and people are looking for further price gains.
Technical trends are looking very strong and people find it very risky to go short right now. I think that's why the rally has been continuing.
Prices are being driven up by hedge funds, which are buying platinum because its fundamentals are looking good. Platinum has been in deficit for the past six years, and it's expected it will be in deficit this year.