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FRANKFURT, Germany — Shares of Volkswagen AG jumped 82 percent Tuesday after a similar surge the day before. Speculation on the reason centered on hedge funds needing to unwind bad bets on the shares’ direction.
The immediate rise in VW share value — at one point, its market capitalization made it more valuable than Exxon Mobil Corp. — prompted German regulators to declare they were looking into the reasons for the explosive growth.
