NEW YORK ( TheStreet) -- Shares of Lufkin Industries (Nasdaq: LUFK) were gapping down Wednesday morning with an open price 11.5% lower than Tuesday's closing price. The stock closed at $52.10 Tuesday and opened today's trading at $46.13. The average volume for Lufkin has been 542,400 shares per day over the past 30 days. Lufkin has a market cap of $1.5 billion and is part of the basic materials sector and energy industry. Shares are down 16.5% year to date as of the close of trading on Tuesday. Lufkin Industries, Inc. manufactures and supplies oil field and power transmission products. The company operates through two segments, Oil Field and Power Transmission. The company has a P/E ratio of 25.2, above the average energy industry P/E ratio of 25.1 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Lufkin as a hold. The company's strengths can be seen in multiple areas, such as its robust revenue growth, largely solid financial position with reasonable debt levels by most measures and impressive record of earnings per share growth. However, as a counter to these strengths, we also find weaknesses including poor profit margins and weak operating cash flow. You can view the full Lufkin Ratings Report. Get more investment ideas from our investment research center. Interested in other stocks that are gapping down? Get free SMS text alerts sent to you when the action happens by texting DOWN to 95370 or select from multiple alert options.