AURORA, CO -- Advanced Circuits reported second-quarter revenue increased 8% year-over-year on continued strong performance in assembly sales as well as strong growth in small-run and quick-turn production PCBs.

Second-quarter EBITDA margins were approximately 210 basis points higher compared to the year-ago period and up about 220 basis points sequentially, reflecting a shift in the sales mix and lower SG&A expenses.

On a conference call with investors, the founding partner of Compass Diversified Holdings, Advanced Circuits' parent company, said it's too early to say whether the uptick is part of a larger trend.

"[W]e get some days where our bookings are really great. We get some days where they're not so great," Elias Sabo said. "When the business was really performing consistently with kind of strong growth rates, we had more consistency on a day-to-day basis in terms of our order patterns. Because we haven't yet returned to that kind of level of consistency, I would say it's just too early for us to call this business as having kind of turned the corner.

"But we were very happy with the second quarter and the companies were being extremely hard on a lot of different initiatives to kind of accelerate their growth, but it's still a bit choppy. [W]e remain a little bit guarded here going into the back half of the year."

Advanced Circuits is the third-largest PCB fabricator in terms of US production, behind TTM Technologies and Sanmina.