'A' a short signal
The commercials are at a maximum short position (lowest in three years) and there had been a very high acceleration of shorting in the previous six weeks (about 70% at the green line at the bottom). A short signal occurred on September 14, 2012, after the previous bullish trend was broken. Holding this short position until the trend ended on January 29, 2013, would have yielded a gain of $14,188 per contract.
'B' a long signal
The commercials are at a maximum long position (highest in three years) and there had been a moderate acceleration (about 25% in the green line at the bottom) of buying in the previous six weeks. Shortly after the bearish trend ended, there was a long entry signal on October 14, 2014. Holding that position until the bullish trend ended on November 14, 2014 would have yielded a gain of $3,113 per contract.