Player: S Chuck Clark
Stock Value: Purchased
Reasoning: The Steelers just signed Chuck Clark, but the veteran safety is already making his presence known on the practice field. Just a day after signing, he has been exhibiting why he started for the Ravens for years. On one play, he helped break up a deep ball. In other instances, he proved capable in run defense. With a theoretical vacancy at safety, he might even push for a starting job.
You might as well consider this both Stock Purchased and Stock Up for Chuck Clark, who is already making inroads.