"In the December quarter, we expect Networks demand to remain soft, and the A&D and Multi-market businesses to return to more normalized levels. We expect the December quarter will be the bottom of the down-cycle in network infrastructure, which appears to be on the verge of turning.

"We see 2018 providing a more positive environment. In addition to expecting a cyclical recovery in Telecom networks, we’ve expanded our customer footprint, and several of our secular growth drivers look to be approaching major inflection points as we secure deals with industry franchise players. We believe we are poised to be a major beneficiary of the upgrade from 40G to 100G CWDM that’s well underway inside the Data Center."

Mr. Croteau concluded, "While the near-term environment remains challenging, we believe we have the design wins and customer commitments to support market share growth in areas of existing strength as well as across new growth engines. When global demand recovers from the temporary pause in China, MACOM will return to our long track record of outperformance over the course of 2018."

Business Outlook

For the fiscal first quarter ending December 29, 2017, we expect revenue to be in the range of $130 million to $136 million. Adjusted gross margin is expected to be between 55% and 58%, and adjusted earnings per share between $0.10 and $0.16, on an anticipated 66.5 million fully diluted shares outstanding.

Conference Call

MACOM will host a conference call on Tuesday, November 14, 2017 at 5:00 p.m. Eastern Time to discuss its fiscal fourth quarter and fiscal year 2017 financial results and business outlook. Investors and analysts may join the conference call by dialing 1-877-837-3908 and providing the passcode 2098371.

International callers may join the teleconference by dialing +1-973-872-3000 and entering the same passcode at the prompt. A telephone replay of the call will be made available beginning two hours after the call and will remain available for five business days. The replay number is 1-855-859-2056 with a passcode of 2098371. International callers should dial +1-404-537-3406 and enter the same passcode at the prompt.

Additionally, this conference call will be broadcast live over the Internet and can be accessed by all interested parties in the Investors section of MACOM's website at http://www.macom.com. To listen to the live call, please go to the Investors section of MACOM's website and click on the conference call link at least fifteen minutes prior to the start of the conference call. For those unable to participate during the live broadcast, a replay will be available shortly after the call and will remain available for approximately 30 days.

About MACOM

MACOM enables a better-connected and safer world by delivering breakthrough semiconductor technologies for optical, wireless and satellite networks that satisfy society’s insatiable demand for information.

Today, MACOM powers the infrastructure that millions of lives and livelihoods depend on every minute to communicate, transact business, travel, stay informed and be entertained. Our technology increases the speed and coverage of the mobile Internet and enables fiber optic networks to carry previously unimaginable volumes of traffic to businesses, homes and datacenters.

Keeping us all safe, MACOM technology enables next-generation radars for air traffic control and weather forecasting, as well as mission success on the modern networked battlefield.

MACOM is the partner of choice to the world’s leading communications infrastructure, aerospace and defense companies, helping solve their most complex challenges in areas including network capacity, signal coverage, energy efficiency and field reliability, through its best-in-class team and broad portfolio of RF, microwave, millimeterwave and lightwave semiconductor products.

MACOM is a pillar of the semiconductor industry, thriving for more than 60 years of daring to change the world for the better, through bold technological strokes that deliver true competitive advantage to customers and superior value to investors.

Headquartered in Lowell, Massachusetts, MACOM is certified to the ISO9001 international quality standard and ISO14001 environmental management standard. MACOM has design centers and sales offices throughout North America, Europe, Asia and Australia.

MACOM, M/A-COM, M/A-COM Technology Solutions, M/A-COM Tech, Partners in RF & Microwave and related logos are trademarks of MACOM. All other trademarks are the property of their respective owners. For more information about MACOM, please visit  www.macom.com follow  @MACOMtweets on Twitter, join MACOM on  LinkedIn, or visit the MACOM  YouTube Channel.

Special Note Regarding Forward-Looking Statements

This press release and our commentary in our conference call held today each contain forward-looking statements based on MACOM management's beliefs and assumptions and on information currently available to our management. Forward-looking statements include, among others, information concerning our stated business outlook and future results of operations, our expectations for business and market conditions, positioning and growth aspirations in the Aerospace & Defense, Multi-market, Networks, Telecom, Mobile Infrastructure, Active Antenna, PON, Metro-Long Haul and Data Center markets and elsewhere, our expectation that the December quarter will be the bottom of the down-cycle in network infrastructure, any expectations as to our relationships with customers and vendors, our future market share, the timing or nature of future Data Center and network upgrade cycles, customer order activity and customer adoption of our solutions, our expectations for the easing of outsourced manufacturing partner supply constraints, our expectations for increasing unit shipments of 25G lasers and other products from our Lowell fab, our expectations for maximizing the value of our divestment of AppliedMicro's Compute business, our future investment decisions, our GaN strategy and expectations for execution on that strategy, the expected outcome of our ongoing litigation against Infineon and any other statements regarding future trends, business strategies, competitive position, industry conditions, acquisitions and market opportunities. Forward-looking statements include all statements that are not historical facts and generally may be identified by terms such as "anticipates," "believes," "could," "estimates," "expects," "intends," "may," "plans," "potential," "predicts," "projects," "seeks," "should," "will," "would" or similar expressions and the negatives of those terms.