The data indicated that during July 21-25, program trading amounted to 21.6 percent of NYSE average daily volume of 4,844.5 million shares1, or 1,046.4 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 3,138.2 million shares a day during July 21-25. About 33.3 percent of program trading took place on the NYSE, 0.6 percent in non-U.S. markets and 66.0 percent in other domestic markets, including Nasdaq, the American Stock Exchange and regional markets. -- www.nyse.com
