The Trade Desk Closes Up 67.22 Percent After IPO

Ventura-based The Trade Desk, the online advertising exchange operator, had a huge day on its first trading day on the NASDAQ Global Market, closing up 67.22% on Wednesday, at $30.10 -- well above its debut at $18.00 per share. The company, which is now trading as TTD, was venture backed by IA Ventures, Founder Collective, Wellington Management, and Highwind. The company is led by serial entrepreneur Jeff Green.