Mortgage services provider Mr. Cooper Group CEO Jay Bray (COOP) gives us his assessment of the health of the U.S. economy and tells us how his company is pushing the industry to evolve. Electric vehicle maker Rivian (RIVN) gets more of a lifeline from Amazon while wooing drivers with possible new offerings. Wolfspeed (WOLF) aims to prove short-sellers wrong with a new approach to semiconductors. Greenbrier Companies (GBX) capitalizes on demand for railroad cars.  The Drill Down with Cory Johnson offers a regular look at the business stories behind stocks on the move.

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