WASHINGTON - Bank regulators' latest attempt to measure market risk  is an improvement over earlier efforts, bankers say, but it's still too   rigid and too burdensome.   
The bankers' critiques, in the form of comment letters filed with the  Federal Reserve Board, Office of the Comptroller of the Currency, and   Federal Deposit Insurance Corp., are chock full of charts, mathematical   formulas, and extremely technical arguments.     
  
At the heart of the banks' dispute with regulators, however, is simple  arithmetic - the agencies plan to force banks to set aside more capital for   currency, securities, and derivatives trading than the banks want to.   
"In many of their securities and derivatives activities, commercial  banks face intense competition from nonbank participants," wrote Arjun K.   Mathrani, executive vice president and chief financial officer of Chase   Manhattan Bank. "The imposition of costly capital requirements could force   banks to increase the costs of their products and, potentially, lose   customers to these competitors."         
  
Regulators' first foray into market risk came in 1993, when the Basel  Committee on Banking Supervision proposed using a standardized formula to   measure the risk banks face from their trading activities.   
Money-center banks protested that they should be able to use their own  risk models instead, and in April the committee - made up of bank   regulators from 11 leading industrial nations - proposed letting them do   so.     
That garnered regulators some praise in bankers' comment letters. But  bankers still complained that the rules they would have to follow to use   internal models are too burdensome. Those rules were outlined in detail in   a proposed rule published by the Fed, Comptroller's office, and FDIC in the   July 25 Federal Register.       
  
"For many portfolios, the standardized method generates lower capital  requirements than the internal model approach as set forth in the   proposal," wrote Gay Evans, a managing director of Bankers Trust   International in London and chairman of the International Swaps and   Derivatives Association.       
The regulatory agencies propose to let banks with significant trading  activities calculate their "value-at-risk" - the maximum amount by which   their trading portfolios could decline during a specific period of time -   and use that to set capital requirements.     
Under the proposed regulation, value-at-risk computations would have to  assume a 10-day holding period for financial instruments and add up banks'   exposures to different categories of risk. To come up with the actual   capital requirement, the value-at-risk number would then be multiplied by a   "prudential factor" of three.       
These standards are "unnecessarily rigid and extremely conservative,"  complained Jill M. Considine, president of the New York Clearing House, a   group of money-center banks. The market risk rules should be used to   "protect banks against normal market risks in their portfolios," she added,   not "as a tool to protect the banking system against systemic risk."       
  
Lewis W. Teel, executive vice president in charge of trading risk  management at Bank of America, argued for dropping the multiplication   factor to one. Several banks called for using a one-day holding period, not   10 days, in calculating value-at-risk.     
Comments closed Sept. 18 on the market risk proposal. A tentative  proposal by the Fed to let banks set their own capital cushions for market   risk - and punish them if their trading losses exceed that cushion -   remains open for comment through Nov. 1.     
The market risk rules will affect about 25 large banks with significant  trading operations, as well as any banks with assets under $5 billion whose   trading assets and liabilities exceed 10% of assets.   
In a letter to the Federal Reserve, Paul D. Berkley, chairman and chief  executive of the State Bank of Downs in Kansas, said that while his bank   would be exempt from the rules, he still didn't like them.   
"I do not know who the Basel Committee on Banking Supervision is," Mr.  Berkley wrote, "but I would suggest that we send them to China to add more   regulations to their regulated economy. I used to advise sending them to   Russia, but Russia has seen the light and has done away with a lot of   unnecessary regulation while our bureaucrats continue to add more."