Benzinga's Top Downgrades By: Benzinga via Benzinga September 25, 2015 at 10:17 AM EDT Analysts at William Blair downgraded Caterpillar Inc. (NYSE: CAT) from Outperform to Market Perform. Caterpillar shares closed at ... Read More >> Related Stocks: Atlas Air Ww Caterpillar Cummins Emerge Energy Services LP