Led by David Rockefeller during the 1970s and 1980s, Chase Manhattan emerged as one of the largest and most prestigious banking concerns, with leadership positions in syndicated lending, treasury and securities services, credit cards, mortgages, and retail financial services. Weakened by the real estate collapse in the early 1990s, it was acquired by Chemical Bank in 1996, retaining the Chase name. Before its merger with J.P. Morgan & Co., the new Chase expanded the investment and asset management groups through two acquisitions. In 1999, it acquired San Francisco-based Hambrecht & Quist for $1.35 billion. In April 2000, UK-based Robert Fleming & Co. was purchased by the new Chase Manhattan Bank for $7.7 billion.