This is the Market Cycle Forecast for September 2nd 2007. These commentaries are posted to enhance the other cycle-based charts presented here. The chart for this week shows a dominant cycle which has appeared on the S&P 500 during the last 100 trading days. The period of this cycle is 17 days. This cycle was derived by running a Fourier Transform on the data. The high-to high chart indicates that the current cycle has reached a top and the new bottom is scheduled for September 10th 2007.