Here are some more comments from Brad Sherman's call for a FTT during the 'flash crash' hearings earlier this week:
http://www.nasdaq.com/aspx/stock-ma...shermanconsider-tax-on-high-frequency-trading
During the question-and-answer period, Sherman grilled Securities and Exchange Commission Chairman Mary Schapiro about whether individual stocks would suffer if they weren't part of high-frequency trading.
Sherman suggested that a fractional tax, something like 1/20th of a cent, based on a certain size of share trades, could "disrupt the business model of those engaged in high frequency trading."
"If most American stocks were insulated from this high frequency trading, that's where real investors would want to go," Sherman said.
A few Republicans on the panel asked Schapiro to respond to the idea. Rep. Ed Royce (R., Calif.) suggested that such a tax would simply provide less liquidity. Schapiro demurred, saying tax policy is above her pay grade.
Rep. Jeb Hensarling (R., Texas) asked Schapiro whether a transaction tax would be passed on to investors.
"I really don't know the answer," Schapiro said. "I assume most costs are passed on to investors one way or the other."
Later in the hearing, Sherman asked executives at major U.S. securities and futures exchanges about their views on high-frequency trading and if they are serving any useful purpose.
Eric Noll, the head of Nasdaq OMC's transaction services, told Sherman that evidence suggests high frequency traders "provide real value."
"They provide deep markets. They provide tighter bid-offer spreads and reduce costs."
NYSE Euronext's Chief Operating Officer Larry Leibowitz, meanwhile, cautioned against any potential ban on the practice.
"Just saying, 'let's ban high-frequency trading,' -- I think we'd be stunned at the consequences," Leibowitz said.