Shinko Securities is planning to sell credit-default swaps next year. "It's the biggest potential market," said Toshihiro Ikejima, trader in the fixed income securities department in Tokyo. The firm, which currently sells credit-linked notes, said its clients--mainly domestic corporates and banks--are starting to inquire about the product for hedging purposes. Ikejima continued that it is doubtful that it would look to become a market maker, likely preferring to focus on customer business. He declined to comment if the bank will hire additional marketers for the effort.