NEW YORK & LONDON & SINGAPORE--(BUSINESS WIRE)--Markit (Nasdaq:MRKT), a leading global diversified provider of financial information services, today announced the launch of a secondary public offering of its common shares. In the offering, which is subject to market and other conditions, certain of Markit’s shareholders intend to offer 24,586,022 common shares for sale and to grant the underwriters the right to purchase up to approximately 1,700,000 additional common shares from the selling sha