TORONTO - Alliance Atlantis Communications has asked the NASDAQ Stock Market to delist its Class B common shares effective at the close of business today. These shares trade under the symbol AACB. "Given the very low volume of trading in our Class B common shares on NASDAQ, and the ongoing listing and administrative costs, it was determined that this listing was no longer cost-effective," said David Lazzarato, executive vice-president and CFO. As a registrant under the Securities Exchange Act of 1934, the company will continue to have ongoing United States securities obligations, including those related to Sarbanes-Oxley. The company's Class...