Trade Desk Soars On First Trading Day, Fueling IPO Fire Digital ad technology company Trade Desk (TTD) on Wednesday added more fuel to the resurgent market for initial public offerings with a strong opening in its stock market debut. Late Tuesday, Trade Desk priced 4.66 million shares at 18 a pop, raising $84 million. Shares priced at the high end of its 16-18 range, which had been hiked from 14-16 as investor demand swelled. Trade Desk opened at 28.75 and was near 29, up 62%, in afternoon trading in the stock market today. In another IPO Wednesday, Novan (NOVN) opened at 14.40 after pricing at 11, and was trading near 17 Wednesday afternoon, up 55%. Novan develops acne treatments. Trade Desk operates a digital-advertising-technology platform for ad buyers. Many ad tech stocks have struggled in recent years, but Trade Desk is profitable, with revenue swelling 155% to $113.8 million in 2015. Trade Desk said revenue rose 93% to $47.2 million in Q2.