Here is a market that is setup to rally but continues downward. The seasonal tendency is for a rally at this point, and the commercials are heavily long. However, as you can see by the red line drawn on the screen, we are in a strong downtrend.
I have marked a B for buy on the chart above that downtrend line. Any weekly close above this line at this point would be a signal to go long this market. Then if the trend does change to upward we can trade pattern setups along the way.
Until this trendline break, NADA. To quote Tom Petty, "the waiting is the hardest part."