Price gains in the stocks of many major banks evaporated Monday as the  market endured one of its wildest rides of the year. 
The closely watched Dow Jones industrial average first soared 270  points, then plunged into losing territory amid nervous investors and   profit takers.   
  
Nevertheless financial companies were "among the strongest groups in the  market," said Mark A. Davis, director of research at Bank Stock Group in   Columbus, Ohio. "The sector rotation into bank stocks that everyone has   been talking about is finally happening."     
Though prices of many top banking companies rose early in the session,  only J.P. Morgan & Co. closed higher, by $3.50, to $136.625. 
  
BankAmerica Corp. fell $1.25, to $71.75; Chase Manhattan Corp., $1.0625,  to $85; and Citigroup Inc. 75 cents, to $70.875. 
Regionals banks fared better. National City Corp. of Cleveland advanced  $1.125, to $70.875; PNC Bank Corp. $1.50, to $58.75; and Suntrust Banks   81.25 cents, to $70.8125.   
As for the general market environment, "we saw a burst of enthusiasm  carrying over from last week and now we're seeing some breath catching,"   said Jeffrey Warantz, an equity strategist for Salomon Smith Barney in New   York. Investors held firm with certain industry sectors.     
  
"You're still seeing a lot of strength in the cyclical stocks that had  gotten beaten down," Mr. Warantz said. "Investors are moving into the   capital goods sector, and financial institutions are continuing to show   strength."     
Bank stocks were "one of the few segments today that continued to  outperform," said Jonathan Hatcher, an equities analyst with Conseco   Capital Management of Carmel, Ind. "People were looking for the value that   these shares offer."     
But analysts split on whether financial institutions' shares would prove  to have staying power. 
"This could the beginning of a long-term bull market for bank stocks  where the financial sector outperforms others," Mr. Davis said. "We're   going to have a great year for earnings-per-share growth."   
  
On the other hand, Peter Green, chief technical strategist at Gruntal &  Co., predicted solid but unspectacular advances from banks in the months   ahead.   
"Banks will continue to do well, but they may not do as well as other  groups," Mr. Green said. "While investment banking should still do well,   trading profits may be a tad more difficult to achieve."