There was a nice technical Sell signal on VNQ on Friday 8/7/09.
Note this prediction was made on Saturday 8/8/09 based on the closing price of Friday 8/7/09
You can see a tutorial on the pattern at:
http://www.wikinvest.com/image/LUV_SELL.jpg for a simple explanation of the mechanics of that signal See also http://www.wikinvest.com/image/LUV_BUY.jpg For an examples and explanation of the Buy Pattern and signal.