Program Trading Avg'd 55.7% of NYSE Volume during Apr. 11-15 <A HREF="http://www.nyse.com/Frameset.html?displayPage=%2Fmarketinfo%2FProgramTrading.html" target="_blank">http://www.nyse.com/Frameset.html?displayPage=%2Fmarketinfo%2FProgramTrading.html</A> View the Top 15 Most Active <A HREF="http://www.nyse.com/pdfs/pt42105.pdf" target="_blank">http://www.nyse.com/pdfs/pt42105.pdf</A>