Program Trading Averaged 25.7 Percent Of NYSE Volume During May 4-8

The New York Stock Exchange, a subsidiary of NYSE Euronext (NYX), 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 4-8.

The data indicated that during May 4-8, program trading amounted to 25.7 percent of NYSE average daily volume of 3,741.8 million shares¹, or 963.3 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. 

In all markets, program trading by member firms averaged 3,488.1 million shares a day during May 4-8.  About 27.6 percent of program trading took place on the NYSE, 0.6 percent in non-U.S. markets and 71.8 percent in other domestic markets, including Nasdaq, NYSE Amex and regional markets.

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