Gemini Space Station, the cryptocurrency exchange founded by Tyler and Cameron Winklevoss, surged in its Nasdaq debut Friday after raising $425 million in an initial public offering. The company priced its IPO late Thursday at $28 a share, valuing Gemini at about $3.3 billion before trading began. That price was above the revised $24 to $26 range it set earlier in the week and well above the initial $17 to $19 range. The offering covered 15.2 million shares. On Friday, the stock opened at $37.01, a 32% pr ...