NYSE Advancing/Declining Volume, from James Sogi
I've been watching NYSE advancing issue volume minus declining issue volume, and it seems to lead the S&P futures by a few seconds and is a good barometer of the day. Yesterday it rolled into negative territory as the S&P fell off its midday highs before flip-flopping around and rebounding into positive on the up close. Last week saw some days over a million on either side on the runs. It seems more direct than TRIN, the predictive value of which Vic and Laurel have disproved in published studies.