AquaBounty Technologies (AQB) CEO Sylvia Wulf on the challenges and promises of land based fish farming. Devon Energy (DVN) makes a losing bet while hedging oil price fluctuations. Why are Avis Budget Group’s cars so damn expensive this year? Their CFO says it’s not his fault. How 908 Devices (MASS) new technology can sniff out narcotics like fentanyl. The Drill Down with Cory Johnson offers a daily look at the business stories behind stocks on the move.

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