'A' a short signal
The commercials are almost at a maximum short position (lowest in three years) and there had been a very high acceleration of shorting in the previous six weeks (the green line at the bottom). A short signal occurred on May 28, 2013, soon after the previous bullish trend was broken. Holding this short position until the trend ended on August 22, 2013, would have yielded a gain of $7,030 per contract.
'B' a short signal
The commericals are at an extreme short position and the commercials' activity in the last six weeks had accelerated to an extremely high level (about 100% in the green line at the bottom). Shortly after the bullish trend ended, there was a short entry signal on April 30, 2014. Holding that position until the bearish trend ended on November 4, 2014 would have yielded a gain of $9,450 per contract.