$9055.15 = NYA's 8-day sma value today, April 8, 2013 table of recent values for the daily NYSE Net Advance-Decline # of issues (Source - stockcharts.com) -1706 - Feb. 25 + 981 - Feb. 26 +1596 - Feb. 27 + 80 - Feb. 28 + 379 - March 1 ... +266 = this week's average daily NYAD + 349 - March 4 +1453 - March 5 + 337 - March 6 + 480 - March 7 +1043 - March 8 ... +732 = this week's average daily NYAD + 221 - March 11 - 529 - March 12 + 409 - March 13 +1001 - March 14 - 197 - March 15 ... +181 = this week's average daily NYAD - 711 - March 18 - 458 - March 19 +1497 - March 20 - 895 - March 21 + 785 - March 22 ... +44 = this week's average daily NYAD - 560 - March 25 +1137 - March 26 + 192 - March 27 + 739 - March 28 ... +377 = this week's average daily NYAD (holiday shortened week) ............................ +318 = the average daily NYAD for these prior 24 trading days February 25 to March 28, 2013 -1159 - April 1 -103 - April 2 -1714 - April 3 +732 - April 4 -133 - April 5 ... -475 = this week's average daily NYAD +1135 - April 8