Vivendi Delisted From U.S. Stock Markets
Despite the success of subsidiary Blizzard's World of Warcraft, Vivendi Universal has delisted itself from U.S. stockmarkets in an effort to cut costs. 1up reports: "Just because they're moving off the American stock market, however, doesn't mean Vivendi Universal won't seek, rely on or utilize US investors. 'Vivendi Universal intends to maintain and develop its business operations in the US, but wishes to reduce financial costs,' says the company's statement."
Sarbanes-Oxley would be the most likely reason for a company to do something like this, probably so that they don't have to pay for the audits. Of course, the whole reason beyond the Act was to make companies accountable to their shareholders and to the public in general, so if you invest in VU, you should (as the previous posters have said) be aware that you have one less safety net available.