I use the Stochastic Momentum Index (SMI) to signal when to buy and sell ETFs and stocks. Lately, the SMI for the real estate ETFs has shown a bearish signal. Below is the chart for $URE. The secondary chart is the SMI. In the SMI chart, the SMI line and the signal line are above 40 and have crossed. This indicates a selling situation. As you can see, this situation occurred several times: early May, around March 21st, and around February 21st. While the selling at those dates wasn't solid (see the follow-through price action), the signals do show some selling opportunities. Likewise, the reversed cross-over actions of mid-January, early March, and mid-May provide some buy signals.