Here is one chart view for GDX. Hope the annotations come through for those who only have a free stockcharts account. I chose the March bottom and July top for the support zone. Uptrend lines from July and August. Right now I am more interested in them than the downtrend line of 25.58 through 23.99. I found it interesting that the trendline from August 22.025 actually would extend right to May 20.89 cutting off those 2 days of the July bottom.