Shares of Republic New York Corp. are surging as Wall Street takes note  of the company's restructuring. 
"It's kind of a turnaround story," said Stephen Biggar, a banking  analyst at S&P Equity Group. "This is one of the cheapest stocks of the   regional bank group."   
  
Republic is working its way back from the losses it suffered last year  when Russia's economy collapsed. 
Analysts applauded Republic's decision to take a $104 million pretax  charge to focus on private banking, retail services, and niche corporate   businesses. That charge led to a 60% decline in first-quarter profits, to   $46.5 million, offsetting large trading gains.     
  
Since it announced its restructuring plan last Thursday, Republic shares  are up 12%, to $57.8125. Of that gain, $3.125 came Wednesday. 
The company also has new management, with Dov C. Schlein, formerly chief  operating officer, now chairman and chief executive officer. 
Analysts credit the new management with a new candor about operations.  "They're being more forthcoming about telling their story," Mr. Biggar   said.   
  
Bank stocks were mixed Wednesday, with some pulling back a bit after  gains Tuesday. Citigroup Inc. dropped 31.25 cents, to $74.5625; Chase   Manhattan Corp. $1.9375, to $83.625; and J.P. Morgan & Co. $1.9375, to   $135.8125.     
The Standard & Poor's bank index fell 0.80% and the S&P 500 fell 0.87%.  The Dow Jones industrial average was up 0.13% and the Nasdaq bank index   0.86%.   
Shares of BankAtlantic Bancorp were unchanged at $7.9375 as chairman  Alan B. Levan discussed growth plans with the New York Society of   Securities Analysts.   
The Fort Lauderdale company took hits last year as it left the mortgage  business, added executives, opened branches, and expanded its ATM network. 
  
"We look at 1998 as an isolated period of earnings adjustment," Mr.  Levan said. "Our job at this point is to show that the opportunities we   took were well-placed."   
In expanding its ATM network, BankAtlantic has placed units in community  colleges, supermarkets, and on cruise ships. 
BankAtlantic also picked up 50 executives from Barnett Banks Inc. after  NationsBank Corp., now BankAmerica Corp., bought Barnett, Mr. Levan said.   "We're very pleased with the talent we were able to amass."   
The executives hold top slots throughout the banking organization, in  community and commercial banking. 
BankAtlantic is now focused on building up its small-business lending  operation, Mr. Levan said. 
In addition, the company is expanding its cash management business,  telebanking, trade finance, direct consumer lending, and capital markets   operations.   
Shares of BankAtlantic have appeal "as a value play and at some point  down the road as a takeout candidate," said Frank Barkocy, a banking   analyst at Keefe Management.   
Shares of U.S. Trust Corp. were up $1.50, at $92, after positive  comments by Merrill Lynch banking analyst Sean Chin. 
U.S. Trust "has a focused success model in wealth management," Mr. Chin  said. "We believe the firm can generate strong earnings-per-share growth   and return on equity due to its focus on personal investment management for   the fast-growing high-net-worth market."     
Shares of Valley National Bancorp rose $1.25 to $29, after the New  Jersey company said it would buy back as many as 2.75 million shares.   Valley has 55.3 million common shares outstanding. The reacquired shares   would be held in treasury and used for the company's 5% stock dividend.