Shares of Ziopharm Oncology Inc. tumbled 12% in morning trade Friday, after the biotechnology company's stock offering priced at a deep discount. The company said its follow-on offering of 9.7 million shares priced at $5.15, which is 28% below Thursday's closing price of $7.12. The stock hasn't closed as low as $5.15 since Oct. 14, 2016. The company has 132.4 million shares outstanding, according to FactSet. Ziopharm said that including the proceeds from the offering, expected to be $50 million, the company should have enough cash to fund operations into the fourth quarter of 2018. The stock has soared 33% year to date through Thursday, while the iShares Nasdaq Biotechnology ETF has climbed 9.9% and the S&P 500 has gained 6.9%.
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