Vikram Pandit, the former Citigroup Inc. chief, is making a big bet on credit cards.
The Orogen Group, an investment firm headed by the former bank executive, is committing $100 million in equity to Fair Square Financial LLC, the two companies are expected to announce on Monday. Fair Square, based in Wilmington, Del., issues credit cards under the brand name Ollo and targets consumers with less pristine credit scores.
Mr....