bankers. Planning a big merger and need some advice on which  branches to close? Why not give Fidelity Investments a ring? 
Fidelity?
  
That's right. The undisputed titan of the mutual fund industry has begun  pitching an array of consulting services to banks. They range from helping   banks design variable annuities to picking the appropriate offices to   shutter.     
Right now, the shutdown side of the business is pretty hot, what with  the merger and acquisition wave that has swept banking. 
  
"Numerous banks have come to us, and asked 'Can you do a demographic  overlay on all our branches and tell us which ones are suitable to close?'"   said Andrew Olear, a vice president who oversees Fidelity's relationships   with bank broker-dealers.     
In fact, he said, 90 of the top 100 banks - many of which sell  Fidelity's mutual funds - have asked the firm to customize demographic   research for them over the last two years. That's what made Fidelity think   maybe it had a new business on its hands.     
Fidelity - whose $373 billion-asset fund business is about the same size  as the entire banking industry's - won't reveal how much it charges for the   service. But it has snared some pretty impressive clients.   
  
Take Chemical Banking Corp., which recently turned to Fidelity for  advice on its coming merger with Chase Manhattan Corp., one of the largest   deals in banking history.   
Fidelity provided maps pinpointing which branches have customers most  likely to buy investments from a bank, and which markets have the   wealthiest investors, a Chemical spokeswoman confirmed.   
However, she maintained, Fidelity didn't exactly have to knock itself  out to come up with the data. Much of the information it provides to banks   comes from public sources, such as the U.S. Census Bureau.   
But the fact is that Fidelity has the data, and the knowhow to interpret  it. That's something the banks just can't match. "The resources Fidelity   has at hand, and its ability to analyze this sort of information is second   to none in the industry," said Andrew Guillett, consultant at Cerulli   Associates.       
  
Fidelity began building up a massive data base on investor buying trends  and demographics in 1989, when it created a staff of seven to amass   research for its own fund marketing efforts.   
"We buy every financial data base there is, and use every consultant in  the business," Mr. Olear said. 
The research group, formally known as the Strategic Marketing Division,  even includes a staff member with a doctorate in geography - "our map man,"   as Mr. Olear puts it. "He can slice and dice the United States any way you   want."     
Mr. Olear said it should come as no surprise that Fidelity has plunged  into consulting. After all, he said, Fidelity is more than just a mutual   fund company.   
"That's the misperception everybody has of Fidelity. We're 40 or 50  separate companies," Mr. Olear said. Fidelity owns a travel agency, a chain   of community newspapers, and a real estate management company, among other   things.     
Still, don't expect every banker in America to start flocking to  Fidelity. Some find the company's offer downright unthinkable. 
"Choosing which branches to close is an extremely sensitive issue," said  Nancy Graves, a senior vice president who oversees retail banking at Mark   Twain Bancshares, St. Louis. "I'm not giving my customer information to a   mutual fund company."