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Program Trading Averaged 22.4% Of NYSE Volume

The New York Stock Exchange today released its weekly program-trading data submitted by its member firms. The report includes trading in all markets as reported to the NYSE for May 19-23.

The data indicated that during May 19-23, program trading amounted to 22.4 percent of NYSE average daily volume of 3,613.4 million shares1, or 810.8 million program shares traded per day.

Program trading encompasses a wide range of portfolio-trading strategies involving the purchase or sale of a basket of at least 15 stocks with a total value of $1 million or more.

In all markets, program trading by member firms averaged 2,395.5 million shares a day during May 19-23. About 33.8 percent of program trading took place on the NYSE, 1.0 percent in non-U.S. markets and 65.2 percent in other domestic markets, including Nasdaq, the American Stock Exchange and regional markets. -- www.nyse.com

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