Quadir told CNBC she has a short position in the stock, meaning she is betting that the share price will decline. "We believe that Adtalem is completely uninvestable, the number of existential risks that exists today should cause alarm for any investor that's looking into this company," Quadir said. In 2017, DeVry Education changed its DV ticker symbol to Adtalem's current ATGE, completing the rebranding of DeVry into Adtalem. Quadir's report found that among Adtalem's properties, the online college Walden University has a graduation rate of just 29%. Adtalem's stock price has soared over 75% in just seven months, from just over $33 a share in late June, to more than $60 a share at Monday's open.

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Persons: Quadir, Safkhet, Bridget Bennett, Rafael Henrique, Lightrocket, DeVry, Adtalem Organizations: Bloomberg, Getty Images WASHINGTON, Walden University, Chamberlain University, Ross University School of Medicine, CNBC, Safkhet, Netflix, Education, DeVry University, Cogswell Education, Blackrock, Vanguard, Department of Education, Higher Locations: Las Vegas , Nevada, U.S, Barbados, Quadir, Adtalem