NEW YORK ( TheStreet) -- Shares of IDT Corporation B (NYSE: IDT) were gapping down Friday morning with an open price 11.3% lower than Thursday's closing price. The stock closed at $21.43 Thursday and opened today's trading at $19.

The average volume for IDT Corporation B has been 163,200 shares per day over the past 30 days. IDT Corporation B has a market cap of $434.5 million and is part of the technology sector and telecommunications industry. Shares are down 16.6% year to date as of the close of trading on Thursday.

IDT Corporation operates as a telecommunications and energy company. It operates in three segments: Telecom Platform Services, Consumer Phone Services, and Genie Energy. The company has a P/E ratio of 13.3, equal to the average telecommunications industry P/E ratio and below the S&P 500 P/E ratio of 17.7.

TheStreet Ratings rates IDT Corporation B as a hold. The company's strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures and notable return on equity. However, as a counter to these strengths, we also find weaknesses including unimpressive growth in net income, poor profit margins and weak operating cash flow. You can view the full IDT Corporation B Ratings Report.

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