GEVO has been forming an inverse head and shoulder formation for about 2 weeks now. I have been trading/analyzing this stock over the last 2 months. This responds very well to gap fills. Last gap was .70 on Sept 7.
This chart shows current long term and short term views of the broad markets using SwingVector algorithm which is the 3rd day of experimentation in charting it out and letting the gaps be filled real time.