'A' a short signal
The commercials are at a maximum short position (lowest in three years) and there had been a moderate acceleration of selling in the previous six weeks (about 40% at the green line at the bottom). A short signal occurred on December 12, 2012, after the previous bullish trend was broken. Holding this short position until the trend ended on April 17, 2013, would have yielded a gain of $3,750 per contract.
'B' a long signal
The commercials are close to a maximum long position (longest in three years) and there had been a high acceleration (about 50% in the green line at the bottom) of selling in the previous six weeks. Shortly after the bearish trend ended, there was a long entry signal on July 15, 2013. Holding that position until the bullish trend ended on May 9, 2014 would have yielded a gain of $8,863 per contract.