Trustwave Holdings, which provides on-demand compliance management and security software, postponed its IPO on Wednesday because of poor market conditions. News of Trustwave's postponement comes on the heels of eight other cancellations this week. The Chicago, IL-based company was founded in 1995 and booked $127.8 million in sales for the 12 months ended 6/30/11. Morgan Stanley, J.P. Morgan and Barclays Capital were set to be the lead underwriters on the deal.
