In an effort to expand its Latin American operations, the bank sold shares in Banco Santander (Brasil) SA, in the United States and in Brazil, where the offering was that nation's biggest offering ever _ eclipsing VisaNet's $4.3 billion offering last year.
American Depository Receipts trading in New York fell 34 cents, or 2.5 percent, to $13.06 in midday trading.
The initial weakness in the U.S. trading is probably because the bank priced shares in Brazil and didn't offer the usually customary discount on what was essentially a secondary offering in the U.S., said Francis Gaskins, president of IPOdesktop.com.
Santander fully priced the stock in the U.S., which allowed the bank to pocket profits on the stock sale instead of a discounted price that may have led to a rise in the share price on Wednesday, Gaskins said.
Santander's Brazilian shares slipped 2.1 percent in their trading debut on Brazil's Bovespa exchange in Sao Paulo, and stood at 23 reals ($13.07) each in early afternoon trading.
The bank is trying to take advantage of one of the world's fastest growing and developing economies to gain a foothold in the region. Banco Santander plans to use 70 percent of money raised to open new branches and install ATMs as well as to fund increased credit transactions in its commercial banking and global wholesale banking segments. Santandar is Brazil's third largest private sector bank behind Itau-Unibanco and Bradesco.
Brazil was one of the last countries hit by the economic meltdown and was able to recover quickly because the government put in huge tax breaks. Economists expect the economy to grow between 3.5 percent and 5 percent in 2010.
The economy is likely to get additional boosts in the coming years as the country upgrades infrastructure and welcomes tourists as it plays host to soccer's World Cup in 2014 and Rio de Janeiro hosts the 2016 Summer Olympics, which it was awarded last week.
Lending markets in Latin America's largest nation are expanding rapidly, especially for mortgages and car and business loans. With 190 million consumers, demand for traditional banking products is also on the rise.
Banco Santander's IPO is part of a fresh wave of offerings in recent weeks as the market reheats. The IPO market was essentially nonexistent during the peak of the credit crisis late last year and into early 2009.
Despite the improving market, David Menlow, president of IPOfinancial.com, said it "doesn't sound the all clear for big deals."
Santander's strength and Brazil's growing market made the deal enticing, Menlow said. Only the stronger deals are making it to market right now, he said.
U.S. IPOs more than tripled in the third quarter compared with last year, according to business information provider Hoover's. There were 17 new issues in the third quarter in the U.S. Another 30 filings were submitted to the Securities and Exchange Commission during the quarter for upcoming offerings, including Banco Santander's stock sale.
A second IPO launched Wednesday was faring much better than Santander's offering. Insurance data specialist Verisk Analytics Inc. shares surged $5.29, or 24 percent, to $27.29.
AP Business Writer Alan Clendenning in Sao Paulo contributed to this report.