I wonder why people still trust them, because they are following the market. The stock is down 10% today, ok, then "we update our recommendation from neutral to sell" or something like that. Here is what I read this morning:HollyFrontier (NYSE:HFC)’s stock was decreased to “Sell” by research professionals at Goldman Sachs, who have a target price of $34.00 on HFC. The firm’s “Neutral” rating is no longer valid. The problem is right here. HollyFrontier is a petroleum refinery company. The whole oil industry is having tough times right now because of highly volatile. But take a look at their numbers. Because of oil volatility the revenue declined by 30%, but what is the most important, their net loss declined 5 times for three months. Here is the loss for three months ended December 31, 2015 (left column) and December 31, 2014 (right column). Their EBITDA became positive from a hugely negative number. The same time period as the above-mentioned net loss. Moreover, their annual EBITDA doubled compared to the last year. So it means that the management is doing a great job. Their sales declined but they managed to increase their margin and decrease the net loss significantly. How can you just downgrade the stock from neutral to sell?