An analyst's recommendation downgrade was the event that pushed ConocoPhillips (COP -1.04%) stock down marginally on the second trading day of the week. The incumbent energy company saw its share price dip by slightly over 1% on the day; by contrast, the S&P 500 index landed in positive territory with a 0.6% increase.No longer a bullMoving closer to bear territory in terms of sentiment, Bank of America Securities's Kalei Akamine changed his ConocoPhillips recommendation to neutral from his previous buy. As ...