'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 60% at the green line at the bottom). A short signal occurred on April 13, 2012, after the previous bullish trend was broken. Holding this short position until the trend ended on June 27, 2012, would have yielded a gain of $25,292 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 (a bit over 30% 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 November 13, 2012. Holding that position until the bullish trend ended on February 20, 2013 would have yielded a gain of $20,202 per contract.