Michael Stewart, a marketer in interest-rate derivatives at BNP Paribas in New York, has taken the new position of director-corporate interest-rate derivatives marketing at Westdeutsche Landesbank Girozentrale in New York. The position was added because the bank has extra business in the area now. The Financial Accounting Standards Board's Statement Number 133 has spurred corporates to re-examine their hedging activity, and WestLB has particular expertise in that arena, according to David Kwun, executive director and head of corporate derivatives sales. Stewart, who reports to Kwun, declined comment.