The report includes trading in all markets as reported to the NYSE for May 21-25.
The data indicated that during May 21-25, program trading amounted to 32.6 percent of NYSE average daily volume of 3,198.1 million shares1, or 1,043.8 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.
For the second quarter of 2007, the NYSE's program-trading report includes profiles of program trading whenever the New York Stock Exchange Composite Index (NYA) moves 180 points or more in a single direction during any one-hour period. During May 21-25, there were no such periods.
In all markets, program trading by member firms averaged 2,157.6 million shares a day during May 21-25. About 48.4 percent of program trading took place on the NYSE, 0.8 percent in non-U.S. markets and 50.8 percent in other domestic markets, including Nasdaq, the American Stock Exchange and regional markets. -NYSE
