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Stock report: Shawn Marion rises again

Our weekly look at which Mavs stock has risen and fallen most:

StreakingSTOCK UP

Shawn Marion -- The Matrix averaged 13.8 points, 7.8 rebounds and 3.3 assists in four games over the last week, posting a pair of double-doubles.

But Marion’s biggest impact was made on the defensive end of the floor. The small forward’s versatility allowed coach Rick Carlisle to continue starting Vince Carter when Jason Kidd returned from a strained right calf. Marion hasn’t just accepted the responsibility of guarding good point guards; he has excelled at it.

Marion’s length, physical presence and tenaciousness have bothered Ricky Rubio, Chris Paul and Ty Lawson, who all had subpar performances in losses to the Mavericks.

SlumpingSTOCK DOWN

Rodrigue Beaubois -- The third-year guard hasn’t played in the four games since Kidd’s return, sitting on the bench for three games before leaving the team after his father’s sudden death Wednesday.

It isn’t certain when Beaubois will return, but the Mavs will need him to contribute when he comes back because of Delonte West’s extended absence due to a fractured right ring finger. It’s important that Beaubois plays with aggression.

The Mavs can live with his mistakes if he’s trying to make things happen. It isn’t acceptable for Beaubois to be timid.