Stock price when the opinion was issued
Long-term chart demonstrates the excellent business and operations. We all need to eat. Focus going forward will be autonomous farming vehicles -- it will sell software to farmers as well as equipment. Valuation will ebb and flow with food and commodity prices, as well as the economy. He stays away from commodity-type businesses.
Why is this a battleground stock? They ripped the band-aid off their last report and set future earnings at a proper level, but see a low bar in their forecast: 12x forward PE. Crop prices have been weak for a while, but that's the best time to buy Deere.