Citigroup's $1.1 Trillion of Mysterious Assets Shadows Earnings

At an investor presentation in May, Citigroup Inc. Chief Executive Officer Vikram Pandit said shrinking the bank's $2.2 trillion balance sheet, the biggest in the U.S., was a cornerstone of his turnaround plan.

Nowhere mentioned in the accompanying 66-page handout were the additional $1.1 trillion of assets that New York-based Citigroup keeps off its books: trusts to sell mortgage-backed securities, financing vehicles to issue short-term debt and collateralized debt obligations, or CDOs, to repackage bonds.