I recently came across the Square Root Theory while reading up stuff on Gann. They projected the S&P lows and highs for 2005 using the Square Root method which turned out to be pretty correct. I calculated the projected low after the 2007 high which turned out to be right on the spot too. Using the 666.5 low, and given that price got up to the level it did thus far, I calculated price projections of 1282 ...... ...... 1126, 1109, 1093, 1076, 1060, 1044, 1028, 1015 ...... ...... 949. Take the price, calculate its square root, add increments of .25, and square.