'A' a short signal
The commercials are very short and have accelerated their buying during the previous six weeks (near 70% in the green line at the botton). At the "A" signal, the Soybean Oil was rising. Shortly after the top in August, entering short on August 23, 2012, and holding that position until September 28, 2012, would have resulted in a gain of $4,100 per contract.
'B' a long signal
The commericals are very long but the price has been dropping. After the drop ended in early January 2014, a two-day bullish reversal ending on January 10, 2014 provided a long entry at 476. Holding that position until the price dropped below the bullish trend line on April 21, 2014 would have resulted in a gain of $2,350 per contract.