Stock report: Greg Biffle up, Stewart down

FORT WORTH, Texas -- Now that the 16th annual Samsung Mobile 500 is over, let's take a look at a few drivers whose stock is rising and others whose stock is falling:

StreakingSTOCK UP

Greg Biffle: He was the points leader coming in, but winning Saturday's race validates his spot in the standings. The Chase for the Sprint Cup is seeded based on wins and now Biffle has one. He's been the most consistent driver all season.

Jeff Gordon: He started 34th and in a race with so many green-flag laps, it would seem difficult to make up 30 spots. But Gordon had a superb car and his crew had a good night in the pits. He went from 34th to fourth. Impressive.

Martin Truex Jr.: The polesitter wasn't able to compete with Biffle, Jimmie Johnson or Mark Martin at the end, but he did finish fourth and moved up to fourth in the point standings (he was sixth before the race started).


Tony Stewart: He won at TMS in November and usually performs well at the track, but nothing went right almost as soon as he unloaded this week. He hit the wall in practice and his backup car never seemed right. The only time he was able to work his way up a little bit was by taking two tires in the pits. He finished two laps down and dropped from third to seventh in the point standings. But if the Chase started today, the defending Cup champ would have the No. 1 seed thanks to his two wins.

Brad Keselowski: A problem with the fuel system effectively ended Keselowski's race early. He had to go to the garage and did come back out to eventually run 312 laps and pick up some points.

Kyle Busch: He just can't seem to get going in 2012. He started 17th and did get the car to 11th, but wasn't ever a factor in the race. He's 14th in the point standings and has just one top-5 this season.