These folks move the market. When they are buying(whatever sector) it is going up. When they short (whatever sector) it goes down. Barron's can say affect is minuscule but they are not trading. These folks will need to cover before VLO goes back up. VLO making lots of money and analysts are saying to buy while their brokerages are short. Give it time and they will be right again.
Got to love how VLO has been their number 1 target. They have been sitting on the offer and moving to the bid since last Tuesday morning. This is a typical VLO move with folks catching the falling knife.