Mark Twain Bancshares stock surged Tuesday after the St. Louis holding  company announced a plan to list its stock on the New York Stock Exchange. 
Mark Twain, which trades on the Nasdaq system, rose 87.5 cents, to  $37.875 a share on a day when bank stocks generally continued to lose   ground. The Standard & Poor's bank index fell 0.02%, as investors took   profits on banks' record-breaking rally last week. The Dow Jones industrial   average rose, by 0.38%, as did the S&P 500, up 0.33%.       
  
Analysts said Mark Twain would gain visibility and liquidity by listing  its stock on the Big Board starting in September. In recent months, the   Nasdaq has undergone probes by regulatory agencies on its trading   practices, but analysts said this was not a factor in the bank's decision   to switch.       
Although the market responded favorably to the company's plan, analysts  pointed out that it is rare for smaller bank companies to make the shift   and that the move sometimes carries risks.   
  
Elizabeth Summers of Ryan Beck & Co. noted that smaller banks want to  move to the New York exchange because they are "fed up" with the lack of   liquidity for Nasdaq stocks. The illiquidity manifests itself in a wide   bid-ask spread - the gap between the price listed for a stock and the cost   to a buyer.       
The NYSE also has more prestige, she added.
However, Ms. Summers noted that, while the bid-ask spread may narrow on  the bigger exchange, "illiquidity can show in another place such as the   stock price."   
  
Matthew Finn, an analyst at Burns Pauli Mahoney, which makes a market in  Mark Twain stock, said small companies that move to the Big Board can lose   the sponsorship of small regional research firms, which tend to trade in   the stock of the firms they are covering.     
"There is a danger that when those companies cannot make a market in  your stock, there isn't an incentive to follow you," he said, adding that   his company would continue to follow Mark Twain.   
He added that he also has "some initial concerns" that Mark Twain simply  is not large enough and could get "lost" among the better known issues   traded on the New York exchange.   
However, Mr. Finn said, Mark Twain's superior performance offsets those  risks. 
  
"Only five of the New York Stock Exchange-traded banks come close to  Mark Twain's return on assets, which is 1.73%," he said. "They also have   had record performance for 21 consecutive quarters; there are very few that   match that type of financial performance."     
Mr. Finn added that Mark Twain could pick up a greater percentage of  institutional investors by moving to the New York Stock Exchange. The   average institutional ownership of banks on the NYSE is 40.75%, compared to   12.6% for Nasdaq bank stocks. Institutions own 21% of Mark Twain.     
"Normally, I would say it is not advisable for small banks to list," he  said, "but while Mark Twain runs a small risk of losing some sponsorship,   performance is what will keep it visible."