Today’s midday gainers are BioFuel Energy Corp. (NASDAQ:BIOF), LightInTheBox Holding Co Ltd (NYSE:LITB), Sarepta Therapeutics Inc (NASDAQ:SRPT) and daily losers are Millennial Media, Inc. (NYSE:MM), Cisco Systems, Inc. (NASDAQ:CSCO), Lumos Networks Corp (NASDAQ:LMOS).

George Soros bill ackman pershing square

Soros gets a boost with Sarepta Therapeutics

Today’s midday gainer is BioFuel Energy Corp. (NASDAQ:BIOF). The energy company’s stock price increased an exciting +23.94% to $2.33 today. With 1.4 million shares, BIOF represents 0.09% of David Einhorn portfolio. The investor paid an average price of $19.34 per share. Billionaire Daniel Loeb holds 1.04 million shares, representing 0.08% of his fund. Loeb acquired his position for $3.71 each asset. Despite today’s surge, this one has been a bad bet for both investors.

The second company in our midday gainers list is LightInTheBox Holding Co Ltd (NYSE:LITB). The online retailer is up +10.94% ($10.30). Tiger Global bought 400,000 shares (0.09% of its portfolio) at $14.38 each last quarter.

Last but not least is Sarepta Therapeutics Inc (NASDAQ:SRPT). The biopharmaceutical company rose +9.54% to $14.12. As of June, George Soros holds 426,000 shares, representing 0.18% of his portfolio. The billionaire paid an average price of $26.51 per share.

Soros takes a hit with three stocks

One stock with a major loss today is Millennial Media, Inc. (NYSE:MM). The advertising company dipped -14.07% to $6.17 after surprising the market with a poor Q3 earnings report. Billionaire George Soros acquired 800,000 shares for $7.42 each last quarter. This position represents 0.08% of Soros’ fund.

Following Millennial Media is Cisco Systems, Inc. (NASDAQ:CSCO). The tech stock dropped -11.90% to $21.14 after predictions of a decline in revenues in 2014. As of June, George Soros holds 237,000 shares (0.06% of his fund), acquired for $20.62.

The last firm in our midday list of losers is Lumos Networks Corp (NASDAQ:LMOS). The stock is down -7.29% ($20.35) after announcing a public offering of 2,512,121 shares. Again, billionaire George Soros took a hit. He purchased 26,000 shares for $14.86 last quarter.