Tokio Marine & Fire Insurance Co. said Tuesday its group pretax profit for the 2000 business year surged 58.9 percent to 85.45 billion yen.

In the previous year, the nonlife insurer booked 130.7 billion yen as an investment loss related to stock index futures trading. But in the absence of any investment loss of similar magnitude, the firm saved 167.2 billion yen in asset management costs, it said.

Tokio Marine posted a group net profit of 41.82 billion yen in fiscal 2000, up 21.5 percent from the previous year, and group revenues of 1.96 trillion yen, down 4 percent.