Here's how I look at StockCharts with AIM as my goal:
This one is done with weekly data which gives me about a three year "look back." Williams % R above -20 is usually when AIM is selling and below -80 is usually when AIM's buying.
The Zig Zag line is set to 30% moves (minimum), so shows about how frequently standard AIM would trigger round trips of buying and then selling.
I watch Accumulation/Distribution to see what all the volume means relative to buyers and sellers enthusiasm.
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