Pinnacle Entertainment Inc. (NYSE:PNK), Gaming and Leisure Properties Inc. (NASDAQ:GLPI) and Whiting Petroleum Corp. (NYSE:WLL) made big gains this Monday. Bitauto Holdings Ltd. (NYSE:BITA), Energy XXI Ltd. (NASDAQ:EXXI) and Violin Memory Inc. (NYSE:VMEM) posted losses.

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GLPI

Pinnacle, GLPI Climb

Pinnacle Entertainment Inc. surged +15.28% and Gaming and Leisure Properties (NASDAQ:GLPI) +12.54% in the wake of reports that the latter has proposed a merger of real estate assets. Marc Lasry has a small stake in PNK, and Leon Cooperman has a position in GLPI. The stocks are up +42% and 24% in 2015, respectively.

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Whiting Petroleum Corp. soared +10.81% today – the result of news late Friday that the company is seeking a possible buyer. John Paulson has a 2.29% allocation in the stock, which has declined nearly -50% over the past year.

Bitauto Tumbles Despite Strong Q4 Earnings

Bitauto Holdings plunged -17.37% today, despite beating expectations with its Q4 numbers. One possible explanation: weak earnings guidance. Comprising more than 5% of the Tiger Global portfolio, BITA is down -21% in2015.

Energy XXI Ltd. dipped -10.12%, ending the day priced at $3.64 – a far cry from its 52-week high of $24.58. KLR downgraded its rating of the stock from hold to buy and lowered its price target from $6.00 to $4.00. Brent crude oil price declines weighed the stock down as well. Billionaires Leon Cooperman and George Soros have stakes in the firm.

Violin Memory tumbled -8.36%, putting its five-day loss at -16.92%. VMEM is another Soros pick.

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