Earnings season is a time when analysts may update their rating and/or price target on a stock. Usually this happens the day of, or shortly after, a company reports earnings. An upgrade or a price target increase is generally bullish. However, when analysts upgrade a stock before an earnings report, investors should really take note. That’s the case for Caterpillar Inc. NYSE: CAT and Deere & Co. NYSE: DE. Both stocks received upgrades on October 9. Caterpillar received two price target increases. Citigroup ...