On Monday May 9, 2011, Citigroup Inc. (symbol C) will undergo a 1-for-10
reverse stock split. All open equity and option orders will be canceled at
8pm ET on Friday May 6, 2011. Accounts holding Citigroup will be updated
over the weekend (May 7th - 8th) to reflect the impact of the reverse split.
Quote data, reflecting the split, will not be available until Monday May
9th, therefore online equity and option orders for Citigroup will not be
accepted on May 7th - May 8th