NEW YORK ( TheStreet) -- Shares of YPF Sociedad Anonima (NYSE: YPF) were gapping down Wednesday morning with an open price 13% lower than Tuesday's closing price. The stock closed at $19.50 Tuesday and opened today's trading at $16.97. The average volume for YPF Sociedad Anonima has been 1.7 million shares per day over the past 30 days. YPF Sociedad Anonima has a market cap of $8.92 billion and is part of the basic materials sector and energy industry. Shares are down 43.8% year to date as of the close of trading on Tuesday. YPF SOCIEDAD ANONIMA, an energy company, engages in the exploration, development, and production of crude oil, natural gas, and liquefied petroleum gas (LPG) in Argentina. The company has a P/E ratio of 5.3, below the average energy industry P/E ratio of 7.2 and below the S&P 500 P/E ratio of 17.7. Get more investment ideas from our investment research center.