Tesla and Alcoa Rises; Varonis Deal; JB Hunt Lower

Today's biggest winners and losers in the stock market.
On this episode of Stock Movers:
- Tesla (TSLA) shares are rising after the company unveiled its new Roadster sports car, which will give the company another offering in its lineup when it goes on sale.
- JB Hunt (JBHT) is lower as it aims to improve margins by raising prices after rising costs weighed on third-quarter profitability.
- Varonis (VRNS) shares are climbing on news Proofpoint will acquire Varonis in a transaction worth $6.3 billion.
- Alcoa (AA) is rising after the aluminum producer reported third-quarter adjusted earnings that beat estimates, helped by higher aluminum production

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