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What: Shares of II-VI (NASDAQ:IIVI), a provider of engineered materials and opto-electronic components, jumped on Tuesday following the company's fiscal second quarter earnings report. At 11 a.m. ET, the stock was up about 13.5%.

So what: II-VI reported quarterly revenue of $191.5 million, up 8.3% year over year and about $2 million higher than the average analyst estimate. Bookings, which are orders that the company expects to convert to revenue within the next year, rose by 11.2% year over year to $207.7 million.

II-VI's performance was driven mostly by its photonics segment, which posted year-over-year revenue and bookings growth of 22% and 47.5%, respectively. Bookings for the company's two other segments, laser solutions and performance products, declined during the quarter.

EPS came in at $0.30, down from $0.35 during the same period last year but $0.03 higher than analysts were expecting. Total costs rose by 11.4% year over year, a bit faster than revenue, leading to lower earnings. For the six months ending on Dec. 31, EPS of $0.58 is up slightly from the $0.55 the company reported in the prior-year period.

Now what: II-VI CEO Francis J. Kramer was pleased with the company's results, despite weakness is certain areas. "It was a busy quarter for our Company. We delivered solid operating results and, as recently announced, we executed definitive agreements to acquire two companies," Kramer said. "Our Photonics segment significantly increased revenues and earnings, and its bookings were the catalyst for the Company's book-to-bill ratio of 1.08. Our cash flow from operations increased 26% over the same period last year and we have utilized this cash to pay down debt and make strategic capital investments. Despite sluggishness in China and in our industrial markets, we are very encouraged about the prospects ahead for all of our business segments."

Looking forward, the company expects fiscal third-quarter revenue to come in at $185 million and $195 million, with EPS between $0.25 and $0.29. During the prior-year period, the company reported revenue of $182.7 million and EPS of $0.23.

Timothy Green has no position in any stocks mentioned. The Motley Fool recommends II-VI. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.