Interactive Brokers, an electronic market maker that trades securities, futures and forex instruments, updated the terms of its IPO Monday. The company plans to offer 34.5 million shares, 73% more than the 20 million originally announced, at a price range of $27.00 to $31.00, representing a 16% increase over the midpoint of the previously announced $23.00-$27.00 range. WR Hambrecht and HSBC are the bookrunners on the deal.
