NEW YORK (TheStreet) -- Shares of Teradyne (TER - Get Report) were gaining 10.4% to $20.14 on heavy trading volume Friday after the semiconductor equipment company beat analysts' estimates for earnings in the first quarter and guided above estimates for the second quarter.

Teradyne reported earnings of 17 cents a share for the first quarter, above analysts' estimates of 12 cents a share for the quarter. Revenue grew 6.7% year over year to $342.4 million, above analysts' estimates of $331.19 million.

The company expects to report earnings of 42 cents to 48 cents a share and revenue of $470 million to $500 million for the second quarter. Analysts expect the company to report earnings of 35 cents and revenue of $441.31 million for the second quarter.

About 2.2 million shares of Teradyne were traded by 10:58 a.m. Friday, above the company's average trading volume of about 1.8 million shares a day.

TheStreet Ratings team rates TERADYNE INC as a Buy with a ratings score of B-. TheStreet Ratings Team has this to say about their recommendation:

"We rate TERADYNE INC (TER) a BUY. This is driven by a few notable strengths, which we believe should have a greater impact than any weaknesses, and should give investors a better performance opportunity than most stocks we cover. 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, good cash flow from operations and expanding profit margins. We feel these strengths outweigh the fact that the company has had lackluster performance in the stock itself."

You can view the full analysis from the report here: TER Ratings Report

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