Valero Energy (VLO) stock was down 2.5% in Friday trading after Morgan Stanley downgraded the refiner to equal-weight from overweight and lifted its price target to $175 from $160.
Trading volume stood at about 2.6 million shares, compared with a daily average of roughly 2.9 million.
Price: 160.26, Change: -4.44, Percent Change: -2.70