10-K 1 acia1231201710k.htm 10-K Document


 
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
FORM 10-K
 
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2017
Or
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                      to                     
Commission File No. 001-37771
 
Acacia Communications, Inc.
(Exact name of registrant as specified in its charter)
 
Delaware
 
27-0291921
(State or other jurisdiction of
incorporation or organization)
 
(I.R.S. Employer
Identification No.)
 
 
 
Three Mill and Main Place, Suite 400
Maynard, Massachusetts
 
01754
(Address of principal executive offices)
 
(Zip Code)
(978) 938-4896
(Registrant’s telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
 
Name of each exchange on which registered
Common Stock, $0.0001 par value per share
 
The Nasdaq Global Select Market
Securities registered pursuant to Section 12(g) of the Act:
None
(Title of Class)
 

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ☐    No  ☒
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  ☐    No  ☒
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (Section 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ☒    No  ☐
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  ☒
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filer
 
  
Accelerated filer
 ☐
 
 
 
 
 
 
Non-accelerated filer
 
☐  (Do not check if a smaller reporting company)
  
Smaller reporting company
 ☐
 
 
 
 
 
 
 
 
 
 
Emerging growth company
 ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.            
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ☒
The aggregate market value of the voting and non-voting stock held by non-affiliates of the registrant as of June 30, 2017, the last business day of the registrant’s most recently completed second fiscal quarter, was approximately $985.7 million. Solely for purposes of this disclosure, shares of common stock held by executive officers and directors of the registrant as of such date have been excluded because such persons may be deemed to be affiliates. This determination of executive officers and directors as affiliates is not necessarily a conclusive determination for any other purposes.
As of February 15, 2018, there were 39,863,491 shares of the Registrant’s common stock, $0.0001 par value, issued and outstanding.
 




TABLE OF CONTENTS
 
 
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Item 1B.
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Item 5.
Item 6.
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Item 7A.
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Item 15.





PART I
Cautionary Note on Forward Looking Statements
This Annual Report on Form 10-K contains forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act. All statements other than statements of historical fact contained in this Form 10-K, including statements regarding our future results of operations and financial position, business strategy and plans and objectives of management for future operations, are forward-looking statements. These statements involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements.
In some cases, you can identify forward-looking statements by terms such as “may,” “should,” “expects,” “plans,” “anticipates,” “could,” “intends,” “target,” “projects,” “contemplates,” “believes,” “estimates,” “predicts,” “potential” or “continue” or the negative of these terms or other similar expressions. The forward-looking statements in this Form 10-K are only predictions. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our business, financial condition and results of operations. These forward-looking statements speak only as of the date of this Form 10-K and are subject to a number of risks, uncertainties and assumptions described in Item 1A under the heading “Risk Factors” and elsewhere in this Form 10-K. Because forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified, you should not rely on these forward-looking statements as predictions of future events. The events and circumstances reflected in our forward-looking statements may not be achieved or occur and actual results could differ materially from those projected in the forward-looking statements. Some of the key factors that could cause actual results to differ from our expectations include:
our ability to sustain or increase revenue from our larger customers, generate revenues from new customers, or offset the discontinuation of concentrated purchases by our larger customers with purchases by new or existing customers;
our expectations regarding our expenses and revenue, our ability to maintain and expand gross profit, the sufficiency of our cash resources and needs for additional financing;
our ability to produce products free of problems, defects, errors and vulnerabilities;
our anticipated growth strategies;
our expectations regarding competition;
the anticipated trends and challenges in our business and the market in which we operate;
our expectations regarding, and the capacity and stability of our, supply chain and manufacturing;
the size and growth of the potential markets for our products and the ability to serve those markets;
the scope, progress, expansion, and costs of developing and commercializing our products;
the timing, rate and degree of introducing any of our products into the market and the market acceptance of any of our products;
our ability to establish and maintain development partnerships;
our ability to attract or retain key personnel;
our expectations regarding federal, state and foreign regulatory requirements, including export controls, tax law changes and interpretations, economic sanctions and anti-corruption regulations;
regulatory developments in the United States and foreign countries, including under export control laws or regulations that could impede our ability to sell our products to certain customers or customers in certain foreign jurisdictions;
our ability to obtain and maintain intellectual property protection for our products; and
the pending purported securities class action and derivative lawsuits and our ability to defend against them.
Except as required by applicable law, we do not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events or otherwise.

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Item 1.
Business
Overview
Our mission is to deliver high-speed coherent optical interconnect products that transform communications networks, relied upon by cloud infrastructure operators and content and communication service providers, through improvements in performance and capacity and reductions in associated costs. By converting optical interconnect technology to a silicon-based technology, a process we refer to as the siliconization of optical interconnect, we believe we are leading a disruption that is analogous to the computing industry’s integration of multiple functions into a microprocessor. Our products include a family of low-power coherent digital signal processor application-specific integrated circuits, or DSP ASICs, and silicon photonic integrated circuits, or silicon PICs, which we have integrated into families of optical interconnect modules with transmission speeds ranging from 100 to 400 gigabits per second, or Gbps, for use in long-haul, metro and inter-data center markets. We are also developing our AC1200 module that will enable, across dual wavelengths, transmission capacity of 1.2 terabits per second (1,200 Gbps). Our modules perform a majority of the digital signal processing and optical functions in optical interconnects and offer low power consumption, high density and high speeds at attractive price points. Through the use of standard interfaces, our modules can be easily integrated with customers’ network equipment. The advanced software in our modules enables increased configurability and automation, provides insight into network and connection point characteristics and helps identify network performance problems, all of which increase flexibility and reduce operating costs.
Our modules are rooted in our low-power coherent DSP ASICs and/or silicon PICs, which we have specifically developed for our target markets. Our coherent DSP ASICs and silicon PICs are manufactured using complementary metal oxide semiconductor, or CMOS. CMOS is a widely-used and cost-effective semiconductor process technology. Using CMOS to siliconize optical interconnect technology enables us to continue to integrate increasing functionality into our products, benefit from higher yields and reliability associated with CMOS and capitalize on regular improvements in CMOS performance, density and cost. Our use of CMOS also enables us to use outsourced foundry services rather than requiring custom fabrication to manufacture our products. In addition, our use of CMOS and CMOS-compatible processes enables us to take advantage of the technology, manufacturing and integration improvements driven by other computer and communications markets that rely on CMOS.
Our engineering and management teams have extensive experience in optical systems and networking, digital signal processing, large-scale ASIC design and verification, silicon photonic design and integration, system software development, hardware design and high-speed electronics design. This broad expertise in a range of advanced technologies, methodologies and processes enhances our innovation, design and development capabilities, and has enabled us, and we believe will continue to enable us, to develop and introduce state-of-the-art optical interconnect modules, coherent DSP ASICs and silicon PICs. In the course of our product development cycles, we engage with our customers as they design their current and next-generation network equipment in order to gauge current and future market needs.
We sell our products through a direct sales force to leading network equipment manufacturers, network operators and cloud service providers. The number of customers who have purchased and deployed our products has increased from eight in 2011 to more than 30 during 2017. Our revenues for the years ended December 31, 2017, 2016 and 2015 were $385.2 million, $478.4 million and $239.1 million, respectively. Our net income for the years ended December 31, 2017, 2016 and 2015 were $38.5 million, $131.6 million and $40.5 million, respectively. As of December 31, 2017, 2016 and 2015, our total assets were $611.3 million, $516.9 million and $130.7 million, respectively.
Industry Background
Growing Demand for Bandwidth and Network Capacity
Global Internet Protocol, or IP, traffic is projected to nearly triple from 3.2 exabytes per day in 2016 to 9.1 exabytes per day in 2021, representing a 24% compound annual growth rate, or CAGR, according to Cisco’s Visual Networking Index Complete Forecast Highlights, dated June 2017, or the VNI Report. This rapid growth in IP traffic is the result of several factors, including:
Increased data and video consumption.    Over the last decade, the proliferation of new technologies, applications, Web 2.0-based services and Internet-connected devices has led to increasing levels of Internet traffic and congestion and the need for greater bandwidth. Video traffic, in particular, is growing rapidly, and placing significant strains on network capacity. The VNI Report estimates that video traffic will represent 82% of all global consumer IP traffic by 2021, reaching 232.7 exabytes per month, up from 78.2 exabytes per month in 2016.
Growth in mobile and 4G/LTE communications.    The increasing demand for data- and video-intensive content and applications on mobile devices is driving significant growth in mobile data and video traffic and has led to the

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proliferation of advanced wireless communication technologies, such as 4G/LTE, which depend on wired networks to function. According to Cisco’s Visual Networking Index: Global Mobile Data Traffic Forecast Update, 2016-2021 White Paper, dated February 2017, global mobile data traffic grew 63% in 2016 from the prior year and is expected to increase nearly seven-fold from 2016 to 2021, a 47% CAGR.
Proliferation of cloud services.    Enterprises are increasingly adopting cloud services to reduce IT costs and enable more flexible operating models. Consumers are increasingly relying on cloud services to satisfy video, audio and photo storage and sharing needs. Together, these factors are driving increased Internet traffic as cloud services are accessed and used. Global cloud data center traffic is expected to reach 19.5 zettabytes, or ZB, per year by 2021, up from 6.0 ZB per year in 2016, a 27% CAGR, and represent 95% of total data center traffic by 2021, compared to 88% in 2016, according to the Cisco Global Cloud Index, dated February 2018. The worldwide public cloud services market grew 28.6% year over year in the first half of 2017, with revenues totaling $63.2 billion, according to new results from the International Data Corporation’s Worldwide Semiannual Public Cloud Services Tracker, November 2017.
Changing traffic patterns.    Content service providers and data center operators are increasingly building their own networks of connected data centers to handle the increasing amounts of data generated by today’s modern applications that require more complex processing. The architectures of these connected data centers dramatically increase the amount of data being transmitted within these data center networks. For example, virtual assistants like Amazon’s Alexa and Apple’s Siri require significant processing in the cloud. As a result, the East-West, or E-W, traffic created in response to processing these incoming requests are expected to be greater than the North-South, or N-S, network utilization. As a result, enterprises are moving from an 80/20 mix of N-S/E-W traffic to a 20/80 mix with five times more E-W traffic than that between the servers and the requesting devices, such as desktops, mobile devices and IoT devices, among others, as indicated by Cisco Visual Networking Index, September 2017.
Adoption of the “Internet of Things.”    Significant consumer, enterprise and governmental adoption of the “Internet of Things,” which refers to the global network of Internet-connected devices embedded with electronics, software and sensors, is anticipated to strain network capacity further and increase demand for bandwidth. The VNI Report estimates that globally, there will be approximately 27.1 billion networked devices in 2021, up from 17.1 billion such devices in 2016.
Importance of Optical Interconnect Technologies
Optical equipment that interfaces directly with fiber relies on optical interconnect technologies that take digital signals from network equipment, perform signal processing to convert the digital signals to optical signals for transmission over the fiber network, and then perform the reverse functions on the receive side. These technologies also incorporate advanced signal processing that can monitor, manage and reduce errors and signal impairment in the fiber connection between the transmit and receive sides. Advanced optical interconnect technologies can enhance network performance by improving the capabilities and increasing the capacities of optical equipment and routers and switches, while also reducing operating costs.
The key characteristics of advanced optical interconnect technologies that dictate performance and capacity include:
Speed.    Speed refers to the rate at which information can be transmitted over an optical channel and is measured in Gbps.
Density.    Density refers to the physical footprint of the optical interconnect technology. Density is primarily a function of the size and power consumption of the technology.
Robustness.    Robustness refers to the ability of an optical interconnect technology to compensate for the signal impairment that accumulates through the fiber network and prevent and correct errors introduced by the network.
Power Consumption.    Power consumption refers to the amount of electricity an optical interconnect technology consumes. Lower power consumption permits improved density and product reliability, and results in lower operating expense for electricity and cooling.
Automation.    Automation refers to the ability of an optical interconnect technology to handle network tasks that historically were required to be performed manually, such as activation and channel provisioning.
Manageability.    Manageability refers to the ability of an optical interconnect technology to monitor network performance and detect and address network issues easily and efficiently, which helps increase reliability and reduce ongoing maintenance and operational needs.

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As they build their network service offerings, cloud and service providers and network equipment manufacturers weigh these characteristics differently based on the particular demands and challenges they face. For example, cloud or service providers operating long-haul networks that transmit large amounts of data between Boston and San Francisco have relatively few connection points in their networks and may be more sensitive to speed and manageability of the optical interconnect and less focused on power consumption. In contrast, metro network operators or cloud or service providers operating inter-city or intra-city networks may face space and power constraints, as well as constantly changing workload needs, and be most focused on density, power consumption and automation.
Improvements in these characteristics can lead to reductions in development costs for network equipment manufacturers, who might otherwise need to develop their own optical interconnect technologies. In addition, improvements in these characteristics can lead to reductions in acquisition and development costs for network equipment manufacturers who incorporate third-party optical interconnect technologies into their equipment, which in turn can reduce capital costs for cloud and service providers. Further, improvements in power consumption, automation and manageability can result in reduced operating costs for cloud and service providers.
Coherent Interconnect Technologies
Traditional techniques for transmitting information via light signals over a fiber optic network used simple “on/off” manipulation, or modulation, of the light signal. These traditional techniques are adequate for transmission speeds up to 10 Gbps, as separate optical equipment can be used to monitor the fiber connection and to compensate for the degradation of the light signals when they travel through the fiber. At transmission speeds in excess of 10 Gbps, however, it becomes increasingly difficult to compensate for the degradation of light signals using traditional techniques. In addition, these traditional techniques require cumbersome and expensive equipment and do not meet network operators’ demands for high-quality signals. In the mid-2000s, advanced modulation techniques enabled by coherent communications techniques and digital signal processing were introduced to increase transmission speeds above 10 Gbps. However, these advanced modulation techniques required significant changes in the underlying optical interconnect technologies and architecture.
Coherent communications is a more complex method of transmitting and receiving information via optical signals. Coherent technologies enable greater utilization of complex formats that manipulate both a signal’s amplitude and its phase to yield a higher data transmission rate with better resilience to signal degradation. Coherent communications enables powerful digital signal processing to counter digitally the effects of signal degradation that were previously managed through an array of discrete components and costly techniques, such as optical dispersion compensation. By taking advantage of coherent communications technologies, some cloud and service providers are able to operate networks at transmission speeds of up to 400 Gbps today and are increasingly adopting technologies that enable 1,000 Gbps and above transmission speeds. These providers require advanced coherent interconnect solutions.
Digital signal processing in coherent interconnect technologies takes place in an application-specific integrated circuit known as a coherent DSP ASIC. Building a coherent DSP ASIC is a multi-disciplinary undertaking requiring advanced knowledge of several complex technologies, such as optical systems, transmission, communications theory, digital signal processing algorithms and mixed signal design, and the development and verification of complex communications ASICs. To complete an interconnect solution, the coherent DSP ASIC must be used in conjunction with a number of photonic functions, such as modulation and transmission/reception. These functions have traditionally been performed by several discrete, bulky, expensive components that must be purchased by a network equipment manufacturer and designed into custom interface circuit boards before deployment. The development of a photonic integrated circuit, or PIC, enables dramatic improvements in size and cost by tightly integrating multiple photonic functions into a small integrated circuit.
Our Solution—The Siliconization of Optical Interconnect Technology
We have developed several families of high-speed coherent interconnect products that reduce the complexity and cost of optical interconnect technology, while simultaneously improving network performance and accelerating the pace of innovation in the optical networking industry. We build these advanced optical interconnect products using silicon, by converting optical interconnect technology to a silicon-based technology, a process we refer to as the siliconization of optical interconnect. The siliconization of optical interconnect allows us to integrate previously disparate optical functions into a single solution, leading to significant improvements in density and cost and allowing us to benefit from ongoing advances in CMOS. Our optical interconnect solution includes sophisticated modules that perform a majority of the digital signal processing and optical functions required to process network traffic at transmission speeds of 100 Gbps and above in long-haul, metro and inter-data center networks. Our modules meet the needs of cloud and service providers for optical interconnect products in a simple, open, high-performance form factor that can be easily integrated in a cost-effective manner with existing network equipment.

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Our optical interconnect products are powered by our internally developed and purpose-built coherent DSP ASICs and/or silicon PICs. Our coherent DSP ASICs and silicon PICs are engineered to work together, and each integrates numerous signal processing and optical functions that together deliver a complete, cost-effective high-speed coherent optical interconnect solution in a small footprint that requires low power and provides significant automation and management capabilities. We believe that our highly integrated optical interconnect modules, which are based on our coherent DSP ASIC and silicon PIC, were, at the time of market introduction, the industry’s first interconnect modules to deliver transmission speeds of 100 Gbps and higher. Prior to the introduction of our highly integrated optical interconnect modules, we believe that these transmission speeds were not possible in modules in an industry standard form factor without sacrificing signal quality or other performance characteristics. For example, our CFP- and CFP2-DCO modules, which are based on the industry-standard CFP and CFP2 form factors, enable cloud and service providers to easily upgrade their existing metro and inter-data center networks to 100 Gbps and 200 Gbps using their existing, deployed equipment chassis or newly designed network equipment with CFP slot capabilities. Furthermore, by providing an integrated solution that incorporates digital signal processing and optical functionality required to process and transmit data through a high-speed optical channel, our optical interconnect products reduce the resource requirements of the network equipment manufacturers necessary to build and service equipment with high-speed optical interconnect functionality.
We believe we were the first independent vendor to introduce at commercial scale both a coherent DSP ASIC and a silicon PIC integrated into an optical interconnect module. By designing our silicon PIC in CMOS, which is widely used in the semiconductor industry and generally does not require special packaging, we are able to reduce cost, increase reliability and take advantage of the ongoing improvement of CMOS technology, as well as contract with foundries for the manufacture of many of our products. Our silicon PIC incorporates several key optics functions, including modulation and transmission/reception functions, and supports transmission distances for long-haul, metro and inter-data center applications. We believe that our silicon PIC was the first commercially available PIC to include all of these functions over a broad range of transmission distances. By building both our coherent DSP ASIC and our silicon PIC in CMOS, we can improve the performance and efficiency of the optical interconnect and benefit from engineering synergies.
The advantages of our solution include:
Industry-leading speed, density and power consumption.    We believe that our coherent DSP ASICs, silicon PICs and 100 and 400 Gbps optical interconnect modules consume less power and have higher density than comparable optical interconnect products. Our modules perform functions that have traditionally been provided by several discrete pieces of network equipment.
Breadth of integration.    By integrating many photonic functions into our silicon PIC and further integrating our silicon PIC in our modules, we enable simplified network equipment designs and reduce the amount of development and optical engineering our customers would otherwise do internally, thereby freeing up their engineering resources to focus on other networking functions.
Software intelligence.    Our products incorporate software intelligence that automates tasks, such as channel provisioning, and increases manageability through a high level of software features, including increased monitoring and optimization.
Cost-efficiency.    We are able to offer our products at attractive price points as a result of the scale and process benefits of our CMOS platforms. In addition, the performance capabilities of our products permit greater flexibility and can reduce both design cost for the network equipment manufacturer and network design and ongoing operational cost for the cloud or service provider.
Ease of deployment.    By leveraging industry-standard interfaces, our modules enable cloud and service providers to immediately increase the speed and capacity of their networks by replacing their legacy 10 Gbps or 40 Gbps components with our 100 Gbps, 400 Gbps and above modules in their existing equipment. Our modules can also easily be deployed in next generation network equipment.
Our Competitive Strengths
Our goal is to maintain and extend our competitive advantages through rapid innovation delivering industry-leading high-speed interconnect products to our customers by focusing on the following key areas:
Leading provider of high-speed integrated optical interconnect modules.    We believe we were the first independent vendor to introduce at commercial scale both a coherent DSP ASIC and a silicon PIC integrated into an optical interconnect module capable of transmission speeds of 100 Gbps and above. Our modules solve many of the shortcomings of existing interconnect solutions and meet the majority of a cloud or service provider’s interconnect needs in a standard and compact form factor that can be easily integrated with other network equipment. Our

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coherent DSP ASICs and silicon PICs enable us to offer advanced optical interconnect products with desirable features such as high density, low power and high performance.
Track record of rapid innovation driven by advanced design methodologies.    We maximize the pace of innovation through a number of measures, including the creation of an expanding tool box of digital signal processing algorithms, ASIC implementations, CMOS-compatible optics subsystems and related intellectual property, which enable us to develop complex products at an increasing pace by reusing and expanding existing solutions. Our development, verification and test infrastructure and methodologies involve extensive automation, which increase the speed and quality of our development. Our ability to innovate at a rapid pace enables us to offer products purpose-built for different applications and based on the newest CMOS technology. We believe these design, innovation and development capabilities have enabled us, and we believe will continue to enable us, to develop and introduce state-of-the-art optical interconnect modules, coherent DSP ASICs and silicon PICs for use in applications across multiple markets, including long-haul, metro and inter-data center.
Leveraging the strength of CMOS for photonics.    The density and cost of high-speed optical interconnect products have traditionally been determined by the photonic components. Implementing the photonic components in CMOS, and using CMOS as the platform for the integration of multiple discrete photonics functions, enables us to significantly reduce the density and cost of our optical interconnect products compared to traditional approaches, which typically rely on complex materials such as lithium niobate, which does not permit the same level of integration, and does not benefit from the ongoing advances in CMOS technology driven by the entire electronics industry.
Proprietary software framework enables simplified configuration and deployment.    We have made substantial investments in the software components of our products, which we believe is key to increasing the performance and reducing the capital expenditures and operating expenses associated with high-speed networks. Our software framework also facilitates the integration of the many complex digital signal processing, ASIC, hardware and optical functions required in high-speed interconnect technologies and enables our customers to integrate our products easily into their existing networks. Through the use of software, we are able to configure the same product to be deployed in various network types with different needs and requirements, without the need to modify or reconfigure the network’s architecture, providing us with significant development and manufacturing efficiencies.
Customer collaboration provides deep understanding of market needs.    We collaborate closely with network equipment manufacturers, as well as directly with many cloud and service providers, and solicit their input as they design their network equipment and as we design our next-generation products. This provides us with deep insights into the current and future needs of our customers and the market, which in turn enables us to develop and deliver products that meet customer demands and anticipate market developments.
Strong management and engineering teams with significant industry expertise.    We have deliberately built our management and engineering teams, of which our founders remain a key part, to include personnel with extensive experience in optical systems and networking, digital signal processing, large-scale ASIC design and verification, silicon photonic integration, system software development, hardware design and high-speed electronics design. As of December 31, 2017, approximately 76% of our employees are engineers or have other technical backgrounds, and approximately 48% of our employees hold a Ph.D. or other advanced degree. Each element of our solution is developed by experts in the relevant field. Our collaborative development culture encourages employees with diverse experiences and expertise to work together to create innovative solutions.
Our Strategy
Our goal is to become the leading provider of high-speed interconnect technology that underpins the world’s data and communication networks. To grow our business and achieve our mission, we are pursuing the following strategies:
Continue to innovate and extend our technology leadership.    Our coherent DSP ASICs and silicon PICs are at the heart of our products’ abilities to deliver cost-efficient high performance. We intend to continue to invest in our technology to deliver innovative and high-performance products and to identify and solve challenging interconnect needs. We expect that our continued investments in research and development will enable us to expand and enhance the capabilities of our CMOS-based products in order to continue to develop higher-capacity and higher-density software-enabled products. For example, we are also developing our AC1200 module that will enable, across dual wavelengths, transmission capacity of 1.2 terabits per second (1,200 Gbps). We also plan to continue to invest in silicon PIC innovation and its optimization with our coherent DSP ASICs in order to serve the growing demand for bandwidth.

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Increase penetration within our existing customer base.    We focus heavily on the needs of our customers and frequently innovate in partnership with them to deliver cost-effective products that meet their specific needs. As we continue to enhance and expand our product family, and as our existing customers seek to expand and improve their network equipment technology, we expect to generate additional revenue through sales of existing and new products to these customers.
Continue to expand customer base.    We have increased the number of customers who purchase and use our products in each of the last seven years, and we believe there continues to be unmet need for high-speed, cost-efficient interconnect products among cloud and service providers. In 2017, we sold our optical interconnect products to more than 30 customers. Historically, our sales have been primarily to network equipment manufacturers that do not have internally developed coherent DSP ASICs. We have had some success in marketing and selling our products to network equipment manufacturers that have internally developed their own coherent DSP ASICs. We believe that the benefits of our solution, supported by the success of existing customers as references, will drive more network equipment manufacturers to purchase their interconnect products from us. We plan to continue to acquire new customers through expanded sales and marketing and brand recognition efforts.
Grow into adjacent markets.    We believe that growth in fiber optics-based communications is likely to accelerate, partly driven by the cost and density advantages of our CMOS solution, and that this growth, together with expansion in other markets that depend on high-speed networking capabilities, as well as adjacent markets, such as access aggregation in 5G, Multi-System Operators and Fiber to the x, and intra-data center networking, will result in demand for additional applications for our products. By continuing to reduce the size, design complexity and power of the interconnect and the ease of integration into the equipment, we believe we can create opportunities to serve new types of customers that may seek to incorporate high-speed optical interconnect technologies into their products, including companies that do not have sufficient optical engineering expertise to develop systems using current interconnect technologies.
Selectively pursue investments, acquisitions or other strategic transactions.    Although we are focused on expanding our market share organically, we may pursue investments, acquisitions or other strategic transactions that complement our existing business, represent a strategic fit and are consistent with our overall growth strategy.
Our Products
Our families of optical interconnect technology products consist of high-capability, scalable, cost-efficient optical interconnect modules that are rooted in our coherent DSP ASIC and silicon PIC components. Our products are built to meet the specific needs of various networks and support transmission capacities between 100 Gbps and 400 Gbps per module. We are also developing our AC1200 module that will enable, across dual wavelengths, transmission capacity of 1.2 terabits per second (1,200 Gbps). Our module products incorporate our proprietary advanced system-in-a-module software, which, through a standardized interface, enables seamless installation, configuration and operation and a high level of performance monitoring. We are also offering our coherent DSP ASIC as a standalone component to customers designing their own internal coherent modules and line-cards. In addition, we are increasingly offering our silicon PIC as a standalone component for these applications.
We have developed and manufacture, sell and support the following high-speed coherent interconnect modules:
AC100-MSA Product Family
Our AC100-MSA product family supports 100 Gbps transmission speeds over distances of up to 12,000 km in an industry-standard 5” x 7” form factor. The modules in our AC100-MSA product family rely on advanced soft decision forward error correction, or FEC, and are mainly used in metro and long-haul applications. This product is approaching the end of its volume life cycle.
AC100-CFP Product Family
Our AC100-CFP product family supports 100 Gbps transmission speeds over distances of up to 2,500 km in an industry-standard, pluggable CFP form factor. The modules in our AC100-CFP product family utilize our internally developed silicon PIC technology and are mainly used in metro, inter-data center and long-haul applications.
CFP2-DCO Product Family

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Our CFP2-DCO product family supports up to 200 Gbps transmission speeds, using QPSK, 8QAM and 16QAM modulation, over distances of up to 2,500 km in an industry standard CFP2 form factor. The module supports interoperable staircase FEC, as well as Acacia proprietary soft decision FEC, and is mainly used in inter-data center, metro and long-haul applications.

CFP2-ACO Product Family
Our CFP2-ACO product family supports transmission speeds of up to 200 Gbps over distances of up to 2,500 km using an industry-standard, CFP2 pluggable form factor that was designed in accordance with the Implementation Agreement defined by the Optical Internetworking Forum.   This module has an analog electrical interface and a linear optical transmitter and receiver that supports multiple modulation formats and transmission capabilities of 100 Gbps and 200 Gbps based on the selected format. Our CFP2-ACO offers an optics-only solution for customers who currently rely on in-house DSP capabilities.
AC400 Flex Product Family
Our AC400 Flex product family supports transmission capacities ranging from 100 Gbps to 400 Gbps per module in a 5” x 7” form factor. Modules in our AC400 Flex product family are software configurable to optimize transmission speeds, fiber capacity, compensation for signal impairment and power consumption for multiple applications, including inter-data center, metro, long-haul and subsea applications spanning transmission distances up to 12,000 km and greater.
DSP ASICs and Silicon PICs
Our module products are enabled by our coherent DSP ASIC and silicon PIC technology.  Our coherent DSP ASICs incorporate our proprietary signal processing algorithms to meet the power and performance requirements of the inter-data center, metro, long-haul and subsea markets. Our coherent silicon PICs incorporate multiple coherent optical functions, such as transmission and reception, in a single package.  We are also offering our coherent DSP ASIC as a standalone component to customers designing their own internal coherent modules and line-cards. In addition, we are increasingly offering our silicon PIC as a standalone component for these applications.
AC1200
Our AC1200 product family, currently under development, has been designed to utilize two wavelengths, with up to 600 Gbps capacity each, and support transmission capacity of up to 1.2 terabits per second (1,200 Gbps). Our AC1200 module, which we anticipate will begin sampling in the first half of 2018, is designed to be software configurable to optimize transmission speeds, fiber capacity, compensation for signal impairment and power consumption for multiple network applications, including DCI, metro, long-haul and submarine.
Sales and Marketing
We market and sell our products through our direct sales force consisting of sales personnel and centralized and field-based technical customer support. Our sales force also works closely with our product line management personnel to support strategic sales activities.
Our products typically have a long sales cycle, requiring discussions with prospective customers in order to better understand their network and system level requirements and technology roadmaps. Our customers are predominantly network equipment manufacturers, network operators and cloud service providers and we have discussions with them regarding the requirements of their end customers, which provides our sales force with insight into how our products will be integrated into our customers’ solutions and how these systems will be deployed in the networks of their end customers. This sales process requires us to develop strong customer relationships. The period of time from our initial contact with a prospective or current customer to the receipt of an actual purchase order is frequently a year or more. Prospective customers perform system and network level testing before equipment is deployed in a network carrying live traffic. Customers require us to perform extensive reliability and verification testing based on industry standards. This phase of our sales cycle can take several months and purchase arrangements may not be entered into until after this phase is completed. In addition, once the first purchase order is placed by a customer, it may take several months or longer for that customer to increase the volume of its purchases.
We invest time and resources to meet with leading carriers and cloud service providers to understand network system performance issues. These efforts provide us with a deep understanding of the challenges faced by carriers and cloud service providers which, in turn, enables us to focus our future product and technology development efforts to address those

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challenges. For example, understanding that several of our customers are planning to adopt technologies that enable up to 1,000 Gbps and higher transmission speeds, we are currently developing products to satisfy these requirements.
Our in-house sales personnel also assist customers with orders, delivery requirements, and warranty returns. Our technical support engineers respond to technical and product-related questions, provide simulation tools to enable customers to optimize their optical link design, and provide application support to customers who have incorporated our products into their systems. In general, we have centralized our technical support operations at our corporate headquarters in Maynard, Massachusetts. Our centralized customer support operations allow our technical customer support personnel to work directly with our research and development and operations personnel on first-line as well as escalated specialized technical support, which reduces the time it takes to identify and address our customers’ issues and helps our personnel maintain and improve upon their technical skills. We also provide first line technical support to our international customers on-site from our offices in California, China and Germany.
Customers
The number of customers who have purchased and deployed our products has increased from eight in 2011 to more than 30 during 2017. The following table sets forth our revenue by geographic region for the periods indicated based on the country or region to which the products were shipped, which in certain instances may be the location of a contract manufacturer rather than our end customer:
 
 
Year Ended December 31,
 
2017
 
2016
 
2015
 
(in thousands)
Americas
$
62,992

 
$
92,452

 
$
46,624

EMEA
102,112

 
147,548

 
103,150

APAC
220,062

 
238,412

 
89,282

Total revenue
$
385,166

 
$
478,412

 
$
239,056

 
We have historically generated most of our revenue from a limited number of customers. In 2017, 2016 and 2015, our five largest customers in each period (which differed by period) collectively accounted for 70%, 78% and 74% of our revenue, respectively. In 2017, 2016 and 2015, ADVA Optical Networking North America, Inc. accounted for 15%, 26% and 22% of our revenue, respectively, and ZTE Kangxun Telecom Co. Ltd., or ZTE, accounted for 30%, 32% and 28% of our revenue, respectively. In addition, during 2017 and 2015, Coriant, Inc. accounted for 11% and 13% of our revenue, respectively. Coriant, Inc. accounted for less than 10% of our revenue in 2016. 
 
Please refer to Note 3, Summary of Significant Accounting Policies of the Notes to Consolidated Financial Statements contained in Part II, Item 8 of this Annual Report on Form 10-K. For information regarding risks associated with our international operations, see Part I, Item 1A, Risk Factors of this Annual Report on Form 10-K.
Manufacturing
We utilize a range of CMOS and CMOS-compatible processes to develop and manufacture the coherent DSP ASICs and silicon PICs that are designed into our modules. We select the semiconductor process and foundry that provides the best combination of performance, cost and feature attributes necessary for our products.
We contract with three third-party contract manufacturers to test, build and inspect modules incorporating our coherent DSP ASICs and silicon PICs for high-volume production of our modules. Our contract manufacturers also implement many customer-specific configurations and packaging before customer shipments. We build the test systems used by our contract manufacturers. We also directly manufacture prototype products and limited production quantities during initial new product introduction. We believe our outsourced manufacturing model enables us to focus our resources and expertise on the design, sale, support and marketing of our products to best meet customer requirements. We also believe that this manufacturing model provides us with the flexibility required to respond to new market opportunities and changes in customer demand, simplifies the scope of our operations and administrative processes and significantly reduces our working capital requirements, while providing the ability to scale production rapidly.
We subject our third-party contract manufacturers and foundries to qualification requirements in order to meet the high quality and reliability standards required of our products. Our engineers and supply chain personnel work closely with our

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third-party contract manufacturers and fab foundries to increase yield, reduce manufacturing costs, improve product quality and ensure that component sourcing strategies are in place to support our manufacturing needs.
Research and Development
Our engineering group has extensive experience in optical systems and networking, digital signal processing, ASIC development and design, silicon photonic integration, system software development and high-speed electronics design. As of December 31, 2017, approximately 76% of our employees are engineers or have other technical backgrounds, and approximately 48% of our employees hold a Ph.D. or other advanced degree. We utilize our hardware and software expertise to integrate coherent DSP ASICs and silicon PICs into high-speed interconnect products that are compatible with industry-standard form factor, interfaces and power consumption requirements. We participate in industry groups such as Optical Internetworking Forum to help drive the industry towards standardization that allows our customers to more easily integrate our products into their systems. In addition, we offer our integration expertise to our customers to help expedite their adoption of new products.
We use simulation tools at many levels of product development, reducing the number of design errors and the need for costly and time consuming development cycles. Our simulation environment makes use of industry standard computer aided design tools as well as models and tools that are developed internally. Our simulation tools also allow us to make efficient tradeoffs between power consumption, size and performance early in the development cycle. We believe this contributes to the ability of our products to deliver superior performance with low power consumption.
Our research and development facilities are located in Maynard, Massachusetts, Holmdel, New Jersey, San Jose, California, Ottawa, Canada, Bengaluru, India and Wooburn Green, United Kingdom. We have devoted approximately 87,000 square feet of space to our research and development facilities, which we expect to increase in the future. Our research and development facilities are equipped with industry standard test equipment, including optical spectrum analyzers, high-speed sampling oscilloscopes, logic analyzers, wafer probes, wafer saws, optical network and Ethernet test sets, thousands of kilometers of optical fiber and associated optical amplifiers and other optical test equipment. We use these facilities to conduct comprehensive testing and validation procedures on internally produced chips, components and products before transferring production to our contract manufacturers for commercial, higher-volume manufacturing.
As research and development is critical to our continuing success, we are committed to maintaining high levels of research and development over the long term. We incurred research and development expenses of $92.0 million, $75.7 million and $38.6 million during the years ended December 31, 2017, 2016 and 2015, respectively.
Intellectual Property
Our success and ability to compete depend substantially upon our core technology and intellectual property rights. We generally rely on patent, trademark and copyright laws, trade secret protection and confidentiality agreements to protect our intellectual property rights. In addition, we generally require employees and consultants to execute appropriate non-disclosure and proprietary rights agreements. These agreements acknowledge our exclusive ownership of intellectual property developed for us and require that all proprietary information remain confidential.
We maintain a program designed to identify technology that is appropriate for patent and trade secret protection, and we file patent applications in the United States and, when appropriate, certain other countries for inventions that we consider significant. As of December 31, 2017, we had 49 patent applications pending in the United States, six patent applications pending under Patent Cooperation Treaty filings, 20 foreign patent applications and 37 patents granted in the United States, which expire between 2027 and 2036. Although our business is not materially dependent upon any one patent, our patent rights and the products made and sold under our patents, taken as a whole, are a significant element of our business. In addition to patents, we also possess other intellectual property, including trademarks, know-how, trade secrets, design rights and copyrights. We control access to and use of our software, technology and other proprietary information through internal and external controls, including contractual protections with employees, contractors, customers and partners. Our software is protected by U.S. and international copyright, patent and trade secret laws. Despite our efforts to protect our software, technology and other proprietary information, unauthorized parties may still copy or otherwise obtain and use our software, technology and other proprietary information. In addition, we have expanded our international operations, and effective patent, copyright, trademark and trade secret protection may not be available or may be limited in foreign countries.
Companies in the industry in which we operate frequently are sued or receive informal claims of patent infringement or infringement of other intellectual property rights. We have, from time to time, received such claims from companies, including from competitors and customers, some of which have substantially more resources and have been developing relevant

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technology for much longer than us. As we become more successful, we believe that competitors will be more likely to try to develop products that are similar to ours and that may infringe our proprietary rights. It may also be more likely that competitors or other third parties will claim that our products infringe their proprietary rights. Successful claims of infringement by a third party, if any, could result in significant penalties or injunctions that could prevent us from selling some of our products in certain markets, result in settlements or judgments that require payment of significant royalties or damages or require us to expend time and money to develop non-infringing products. We cannot assure you that we do not currently infringe, or that we will not in the future infringe, upon any third-party patents or other proprietary rights.
Competition
The optical communications markets are highly competitive and rapidly evolving. We compete with domestic and international companies, many of which have substantially greater financial and other resources than we do. We encounter substantial competition in most of our markets, although we believe we have few competitors that compete with us across all our product lines and markets. Our principal competitors in one or more of our product lines or markets include Finisar, Fujitsu Optical Components, Inphi, Lumentum Holdings, NEL, Neophotonics, Oclaro and Sumitomo Electric Industries. We also compete with internally developed coherent interconnect solutions of certain network equipment manufacturers, including Ciena, Huawei and Nokia (formerly Alcatel-Lucent). Finally, we face competition from optical interconnect modules that are the result of joint developments among certain of the competitors listed above. Consolidation in the optical systems and components industry has increased in recent years, and future consolidation could further intensify the competitive pressures that we face.
The principal competitive factors upon which we compete include performance, low power consumption, rapid innovation, breadth of product line, availability, product reliability, reputation, level of integration and cost, multi-sourcing and selling price. We believe that we compete effectively by offering high levels of customer value through high speed, high density, low power consumption, broad integration of photonic functions, software intelligence for configuration, control and monitoring, cost-efficiency, ease of deployment and collaborative product design. We cannot be certain we will continue to compete effectively.
We also may face competition from companies that may expand into our industry and introduce additional competitive products. Existing and potential customers and strategic partners are also potential competitors. These customers may internally develop or acquire additional competitive products or technologies, which may cause them to reduce or cease their purchases from us.
Government Regulation
Our products and services are subject to export controls, including the U.S. Department of Commerce’s Export Administration Regulations and economic and trade sanctions regulations administered by the U.S. Treasury Department’s Office of Foreign Assets Controls, and similar laws and regulations that apply in other jurisdictions in which we distribute or sell our products and services. Export control and economic sanctions laws and regulations include restrictions and prohibitions on the sale or supply of certain products and services and on our transfer of parts, components, and related technical information and know-how to certain countries, regions, governments, persons and entities. For example, on March 8, 2016, the U.S. Department of Commerce published a final rule that amended the Export Administration Regulations by adding ZTE its parent company and two other affiliated entities to the “Entity List,” for actions contrary to the national security and foreign policy interests of the United States. This rule imposed new export licensing requirements on exports, re-exports, and in-country transfers of all U.S.-regulated products, software and technology to the designated ZTE entities, which had the practical effect of preventing us from making any sales to ZTE. On March 24, 2016, the U.S. Department of Commerce issued a temporary general license enabling us to resume sales to ZTE. The U.S. Department of Commerce extended the temporary general license several times, through March 29, 2017. On March 7, 2017, the U.S. Department of Commerce announced a settlement agreement with ZTE and then removed ZTE from the Entity List on March 29, 2017. This action ended the enhanced export restrictions imposed in March 2016 and eliminated the need for the temporary general license. There can be no guarantee that the U.S. Department of Commerce will not take future regulatory action that may materially interfere with our ability to make sales to ZTE or and of its affiliates or other customers, in particular in China. Even without such action by the U.S. Department of Commerce, we would be prohibited from exporting our products to any foreign recipient if we have knowledge that a violation of U.S. export regulations has occurred, is about to occur, or is intended to occur in connection with the item. In addition, various countries regulate the importation of certain products, through import permitting and licensing requirements, and have enacted laws that could limit our ability to distribute our products. The exportation, re-exportation, transfers within foreign countries, and importation of our products, including by our partners, must comply with these laws and regulations.

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We are also subject to various domestic and international anti-corruption laws, such as the U.S. Foreign Corrupt Practices Act and the U.K. Bribery Act, as well as other similar anti-bribery and anti-kickback laws and regulations. These laws and regulations generally prohibit companies and their intermediaries from offering or making improper payments to non-U.S. officials for the purpose of obtaining, retaining or directing business. Our exposure for violating these laws and regulations increases as our international presence expands and as we increase sales and operations in foreign jurisdictions.
In addition, we are subject to environmental, health and safety laws and regulations in each of the jurisdictions in which we operate or sell our products. These laws and regulations govern, among other things, the handling and disposal of hazardous substances and wastes, employee health and safety and the use of hazardous materials in, and the recycling of, our products.
Employees
As of December 31, 2017, we employed 354 full-time employees, consisting of 178 in research and development, 85 in operations, which includes manufacturing, supply chain, quality control and assurance, 91 in executive, sales, general and administrative, and five part-time employees. We have never had a work stoppage, and none of our employees is represented by a labor organization or under any collective bargaining arrangements. We consider our employee relations to be good.
Our Corporate Information
We were incorporated in the State of Delaware in June 2009. Our principal executive offices are located at Three Mill and Main Place, Suite 400, Maynard, MA 01754, and our telephone number at that address is (978) 938-4896. Our website address is www.acacia-inc.com.
“Acacia Communications®,” “Acacia®,” “Connecting at the Speed of Light®,” our logo, and other trademarks or tradenames of Acacia Communications, Inc. appearing in this Annual Report on Form 10-K are our property. This Annual Report on Form 10-K also contains trademarks and trade names of other companies, which are the property of their respective owners. Solely for convenience, trademarks and trade names referred to in this Annual Report on Form 10-K may appear without the ® or ™ symbols, but such references are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights or the right of the applicable licensor to these trademarks and trade names.
Available Information
We make available free of charge through our website our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to those reports filed or furnished pursuant to Sections 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended, or the Exchange Act. We make these reports available through our website as soon as reasonably practicable after we electronically file such reports with, or furnish such reports to, the Securities and Exchange Commission, or SEC.  We also make available, free of charge on our website, the reports filed with the SEC by our executive officers, directors and 10% stockholders pursuant to Section 16 of the Exchange Act as soon as reasonably practicable after copies of such filings are provided to us by the reporting persons.  The information contained on, or that can be accessed through, our website is neither a part of, nor incorporated by reference in this Annual Report on Form 10-K.

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Item 1A.
Risk Factors
The following risk factors and other information included in this Annual Report on Form 10-K should be carefully considered. These risk factors may be important to understanding other statements in this Form 10-K. The following information should be read in conjunction with Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the consolidated financial statements and related notes in Part II, Item 8, “Financial Statements and Supplementary Data” of this Form 10-K.
The risks and uncertainties described below are not the only ones we face. Additional risks and uncertainties not presently known to us or that we presently deem less significant may also impair our business operations. Please see page 1 of this Annual Report on Form 10-K for a discussion of some of the forward-looking statements that are qualified by these risk factors. If any of these risks occurs, our business, financial condition, operating results, cash flow and prospects could be materially and adversely affected.
Because of the following factors, as well as other factors affecting our financial condition and operating results, past financial performance should not be considered to be a reliable indicator of future performance, and investors should not use historical trends to anticipate results or trends in future periods.
Risks Related to Our Business and Industry
We depend on a limited number of customers for a significant percentage of our revenue and the loss or temporary loss of a major customer for any reason could harm our financial condition.
We have historically generated most of our revenue from a limited number of customers. In 2017, 2016 and 2015, our five largest customers in each period (which differed by period) collectively accounted for 70%, 78% and 74% respectively, of our revenue. In 2017, 2016 and 2015, ADVA Optical Networking North America, Inc. accounted for 15%, 26% and 22% of our revenue, respectively, and ZTE Kangxun Telecom Co. Ltd., or ZTE, accounted for 30%, 32% and 28% respectively, of our revenue. In addition, during 2017 and 2015, Coriant, Inc. accounted for 11% and 13%, respectively, of our revenue.  As a consequence of the concentrated nature of our customer base, our quarterly revenue and results of operations may fluctuate from quarter to quarter and are difficult to estimate, and any cancellation of orders or any acceleration or delay in anticipated product purchases or the acceptance of shipped products by our larger customers or any government-mandated inability to sell to any of our larger customers could materially affect our revenue and results of operations in any quarterly period.
For example, in 2016, the U.S. Department of Commerce published a final rule that added ZTE to the “Entity List” for actions contrary to the national security and foreign policy interests of the United States, which had the practical effect of preventing us from making any sales to ZTE for a period of time until a temporary general license was issued, and subsequently extended, by the U.S. Department of Commerce. The temporary license enabled us to resume sales to ZTE until a settlement agreement between the U.S. Department of Commerce and ZTE was ultimately reached and ZTE was removed from the Entity List. There can be no guarantee that the U.S. Department of Commerce will not take future regulatory action that may materially interfere with our ability to make sales to ZTE or any of its affiliates or other customers, in particular in China. Even without such action by the U.S. Department of Commerce, we would be prohibited from exporting our products to any foreign recipient if we have knowledge that a violation of U.S. export regulations has occurred, is about to occur, or is intended to occur in connection with the item. The loss or temporary loss of such customers as a result of future regulatory limitation could materially harm our business, financial condition, results of operations and prospects.
We may be unable to sustain or increase our revenue from our larger customers, grow revenues with new or other existing customers at the rate we anticipate or at all, or offset the discontinuation of concentrated purchases by our larger customers with purchases by new or existing customers. We expect that such concentrated purchases will continue to contribute materially to our revenue for the foreseeable future and that our results of operations may fluctuate materially as a result of such larger customers’ buying patterns. For example, one of our larger customers made significant purchases in the first quarter of 2017 which were greater than its purchases in the fourth quarter of 2016, however; orders from that customer decreased more than 50% in the second quarter of 2017 and did not return to first quarter 2017 purchasing levels for the remainder of 2017. Further, the markets our customers sell into may experience slower deployment than anticipated or these customers may lose market share with their end customers. In addition, we have seen and may in the future see consolidation of our customer base which could result in loss of customers or reduced purchases. The loss or temporary loss of such customers, or a significant delay or reduction in their purchases, could materially harm our business, financial condition, results of operations and prospects.

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Product quality problems, defects, errors or vulnerabilities in our products could harm our reputation and adversely affect our business, financial condition, results of operations and prospects.
We produce highly complex products that incorporate advanced technologies and that we believe to be state-of-the-art for our industry. Despite our testing prior to their release, our products may contain undetected defects or errors, including design, contract manufacturing or supplier quality issues, especially when first introduced or when new versions are released. Product defects or errors have in the past and in the future could affect the performance of our products and could delay the development or release of new products or new versions of products. Allegations of unsatisfactory performance could cause us to lose revenue or market share, increase our warranty costs and related returns which would negatively impact our gross margins, cause us to incur substantial costs in redesigning the products, cause us to lose significant customers, subject us to liability for damages or divert our resources from other tasks, any one of which could materially adversely affect our business, financial condition, results of operations and prospects. For example, we experienced a negative impact on product performance in the second quarter of 2017 in connection with the quality issue at one of our contract manufacturers, as described in Note 11, Commitments and Contingencies of the Notes to Consolidated Financial Statements contained in Part II, Item 8 of this Annual Report on Form 10-K, which we refer to as the Quality Issue. This resulted in a charge to the cost of revenue in our income statement during the second quarter of 2017.
From time to time, we have had to replace certain components of products that we had shipped and provide remediation in response to the discovery of defects or bugs, including deficiencies in components provided by our suppliers and failures in software protocols or defective component batches resulting in reliability issues, in such products, and we may be required to do so in the future. We may also be required to provide full replacements or refunds for such defective products. Such remediation could have a material effect on our business, financial condition, results of operations and prospects.     
The future success of our business is substantially dependent on our successful development and release of new products.
The markets for our products are characterized by changes and improvements in existing technologies and the introduction of new technology approaches. The future success of our business will depend in large part upon the continuing relevance of our technological capabilities, our ability to interpret customer and market requirements in advance of product deliveries and our ability to introduce in a timely manner new products that address our customers’ requirements for more cost-effective bandwidth solutions. The development of new products is a complex process, and we may experience delays and failures in completing the development and introduction of new products. Our successful product development depends on a number of factors, including the following:
the accurate prediction of market requirements, changes in technology and evolving standards;
the availability of qualified product designers and technologies needed to solve difficult design challenges in a cost-effective, reliable manner;
our ability to design products that meet customers’ cost, size, acceptance and specification criteria and performance requirements;
our ability to manufacture new products with acceptable quality and manufacturing yields in a sufficient quantity to meet customer demand and according to customer needs;
our ability to offer new products at competitive prices;
our dependence on suppliers to deliver in a timely manner materials that are critical components of our products;
our dependence on third-party manufacturers to successfully manufacture our products in accordance with the specifications that we and our customers require;
the identification of and entry into new markets for our products;
the acceptance of our customers’ products by the market and the lifecycle of such products; and
our ability to deliver products in a timely manner within our customers’ product planning and deployment cycle.
In general, a new product development effort may last two years or longer, and requires significant investments in engineering hours, third-party development costs, equipment, prototypes and sample materials, as well as sales and marketing expenses, which will not be recouped if the product launch is unsuccessful. We may not be able to design and introduce new products in a timely or cost-efficient manner, and our new products may be costlier to develop, may fail to meet the requirements of the market or our customers, or may be adopted by customers slower than we expect. In that case, we may not reach our expected level of production orders and may lose market share, which could adversely affect our ability to maintain our current revenue levels or resume revenue growth.

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We generate a significant portion of our revenue from international sales and rely on foreign manufacturers to make our products, and therefore are subject to additional risks associated with our international operations.
Since January 1, 2013, we have shipped our products to customers located in 20 foreign countries. In 2017, 2016 and 2015, we derived 84%, 82% and 82%, respectively, of our revenue from sales to customers with ship-to locations outside the United States. A significant portion of our international sales are made to customers with ship-to locations in China. In 2017, 2016 and 2015, we derived 39%, 41% and 36%, respectively, of our revenue from sales to customers with ship-to locations in China. We also work with manufacturing facilities outside of the United States. We have expanded, and in the future may further expand, our international operations to locate additional functions related to the development, manufacturing and sale of our products outside of the United States. Our international operations are subject to inherent risks, and our results of operations could be adversely affected by a variety of factors, many of which are beyond our control, including:
U.S. or foreign governmental action, such as export control or import restrictions, that could prevent or significantly hinder our ability to sell our products to certain customers or customers in certain foreign jurisdictions or build our products internationally;
greater difficulty in enforcing contracts and accounts receivable obligations and longer collection periods;
difficulties in managing and staffing international offices, and the increased travel, infrastructure and legal compliance costs associated with multiple international locations;
the impact of general economic and political conditions in economies outside the United States, including the uncertainty arising from the June 2016 referendum vote in the United Kingdom in favor of exiting the European Union and the subsequent formal notification by the United Kingdom of its intention to withdraw from the European Union, and heightened economic and political uncertainty within and among other European Union member states;
tariff and trade barriers, changes in custom and duties requirements or compliance interpretations and other regulatory requirements or contractual limitations on our ability to sell or develop our products in certain foreign markets;
heightened risk of unfair or corrupt business practices in certain geographies and of improper or fraudulent sales arrangements that may impact financial results and result in restatements of, or irregularities in, financial statements;
certification requirements;
greater difficulty documenting and testing our internal controls;
reduced protection for intellectual property rights in some countries;
potentially adverse tax consequences, including further reform to the U.S. tax code and international tax rules such as the base erosion and profit shifting initiative;
the effects of changes in currency exchange rates;
changes in service provider and government spending patterns;
social, political and economic instability;
higher incidence of corruption or unethical business practices that could expose us to liability or damage our reputation; and
natural disasters, health epidemics and acts of war or terrorism.
The current U.S. President, members of his Administration, and other public officials, including members of the current U.S. Congress, continue to signal a willingness to revise, renegotiate or terminate various multilateral trade agreements under which U.S. companies currently exchange products and services around the world, and to impose new taxes on certain goods imported into the United States or other adverse consequences on companies importing certain goods into the United States.  Since we rely primarily upon non-U.S. manufacturers to make our products, such steps, if adopted, could make our products more expensive and less competitive in the U.S. market.  Such steps, if adopted, could also lead to retaliatory actions by other foreign governments through measures to prohibit, reduce or discourage purchases of our products by foreign customers, or other means, which could make it more difficult to sell our products in those countries or make our products more expensive and less competitive in those foreign markets. For example, there are risks that the Chinese government may, among other things, require the use of local suppliers, compel companies that do business in China to partner with local companies to conduct business and provide incentives to government-backed local customers to buy from local suppliers rather than companies like ours, any of which could adversely impact our business and results of operations. In addition, in December 2017, the Tax Cuts and Jobs Act was enacted, bringing about far-ranging changes to the existing corporate tax system and

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establishing a quasi-territorial system for taxing foreign-source income of multinational corporations. It is not known what specific additional measures might be proposed or how they would be implemented or enforced, or what effect emerging tax reform or other near-term Congressional action may have on other companies’ or our business practices.  There can be no assurance that pending or future legislation or executive action in the United States that could significantly increase our cost of manufacturing and, consequently, adversely affect our business, financial condition or results of operations, will not be enacted.
In addition, international customers may also require that we comply with additional testing or customization of our products to conform to local standards, which could materially increase the costs to sell our products in those markets. 
As we continue to operate on an international basis, our success will depend, in large part, on our ability to anticipate and effectively manage these and other risks associated with our international operations. Our failure to manage any of these risks could harm our international operations and reduce our international sales.
Our operating history makes it difficult to evaluate our current business and future prospects and may increase the risk associated with investments by investors in our common stock.
We were founded in 2009 and shipped our first products in 2011. Our fairly short operating history, combined with the rapidly evolving, cyclical and competitive nature and consolidation of our industry, suppliers, manufacturers and customers, make it difficult to evaluate our current business and future prospects. We have encountered and may continue to encounter risks and difficulties frequently experienced by companies in constantly evolving industries, including unpredictable and volatile revenues and increased expenses as we seek to grow our business. If we do not manage these risks and overcome these difficulties successfully, our business, financial condition, results of operations and prospects could be adversely affected, and the market price of our common stock could decline. Further, we have limited historic financial data, and we operate in a rapidly evolving and increasingly competitive market. As such, any predictions about our future revenue and expenses may not be as accurate as they would be if we had a longer operating history or operated in a more predictable market.
Since we began commercial shipments of our products, our revenue, gross profit and results of operations have varied and are likely to continue to vary from quarter to quarter due to a number of factors, many of which are not within our control. It is difficult for us to accurately forecast our future revenue and gross profit and plan expenses accordingly and, therefore, it is difficult for us to predict our future results of operations.
Quality control problems in manufacturing could result in delays in product shipments to customers or in quality problems with our products which could adversely affect our business.
We have and in the future may again experience quality control problems in our manufacturing operations or the manufacturing operations of our contract manufacturers. For example, we experienced product quality control problems in the second quarter of 2017 in connection with the Quality Issue. If we are unable to promptly identify and correct certain quality issues in our products prior to the products’ being shipped to customers, failure of our deployed products could cause failures in our customers’ products, which could require us to issue a product recall or trigger epidemic failure claims pursuant to our customer contracts, which may require us to indemnify or pay liquidated damages to affected customers, repair or replace damaged products, or discontinue or significantly delay shipments. Quality control problems with materials provided by suppliers may adversely impact our ability to ship our products to customers. Undetected quality problems may prompt unexpected product returns and adversely affect warranty costs. As a result, we could experience a decline in revenue or incur additional costs that would adversely affect our gross margins. In addition, even if a problem is identified and corrected at the manufacturing stage, product shipments to our customers could be delayed, which would negatively affect our revenue, competitive position and reputation.
The failure to increase sales to our customers and expand our customer base as anticipated could adversely affect our future revenue and business.
We believe that our future success will depend, in part, on our ability to expand sales to our existing customers for use in a customer’s existing or new product offerings and continue to expand our customer base. Our efforts to increase product sales to new and existing customers may generate less revenue than anticipated or take longer than anticipated. Further, our customers may elect to develop in-house modules and purchase lower-cost components, such as our DSP ASICs or silicon PICs, in place of modules, which would negatively affect our revenue. If we are unable to increase sales to our new and existing customers and expand our customer base as anticipated, our business, financial condition, results of operations and prospects could be adversely affected.

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If we fail to attract, retain and motivate key personnel, or if we fail to retain and motivate our founders, our business could suffer.
Our business depends on the services of highly qualified employees in a variety of disciplines, including optical systems and networking, digital signal processing, large-scale ASIC design and verification, silicon photonic integration, system software development, hardware design and high-speed electronics design. Our success depends on the skills, experience and performance of these employees, our founders and other members of our senior management team, as well as our ability to attract and retain other highly qualified management and technical personnel. There is intense competition for qualified personnel in our industry and a limited number of qualified personnel with expertise in the areas that are relevant to our business, and as a result we may not be able to attract and retain the personnel necessary for the expansion and success of our business. All of our co-founders are currently employees of our company. The loss of services of any of our founders or of any other officers or key personnel, or our inability to continue to attract qualified personnel, could have a material adverse effect on our business.
Customer requirements for new products are increasingly challenging, which could lead to significant executional risk in designing such products. We may incur significant expenses long before we can recognize revenue from new products, if at all, due to the costs and length of research, development and manufacturing process cycles.
Network equipment manufacturers seek increased performance optical interconnect products, at lower prices and in smaller and lower-power designs. These requirements can be technically challenging, and are sometimes customer-specific, which can require numerous design iterations. Because of the increasing level of complexity of design requirements, including stringent customer-imposed acceptance criteria, executing on our product development goals is difficult and sometimes unpredictable. These difficulties could result in product sampling delays and/or missing targets on key specifications and customer requirements and acceptance criteria. Our failure to meet our customers’ requirements could result in our customers seeking alternative suppliers, which would adversely affect our reputation and results of operations.
Additionally, we and our competitors often incur significant research and development and sales and marketing costs for products that, at the earliest, will be purchased by our customers long after much of the cost is incurred and, in some cases, may never be purchased due to changes in industry or customer requirements in the interim.
If we fail to accurately predict market requirements or market demand for our products, our business, competitive position and operating results will suffer.
We operate in a dynamic and competitive industry and use significant resources to develop new products for existing and new markets. After we have developed a product, there is no guarantee that our customers will integrate our product into their equipment or devices and, ultimately, bring the equipment and devices incorporating our product to market, including because we may be considered a sole-source supplier with a limited operating history. In addition, there is no guarantee that cloud, network and communications service providers will ultimately choose to purchase network equipment that incorporates our products. In these situations, we may never produce or deliver significant quantities of our products, even after incurring substantial development expenses. From the time a customer elects to integrate our interconnect technology into their product, it typically takes 18 to 24 months for high-volume production of that product to commence. After volume production begins, we cannot be assured that the equipment or devices incorporating our product will gain market acceptance by network operators.
If we fail to accurately predict and interpret market requirements or market demand for our new products, our business and growth prospects will be harmed. If high-speed networks are deployed to a lesser extent or more slowly than we currently anticipate, we may not realize anticipated benefits from our investments in research and development. For example, our industry is currently seeing a slowdown in the rate of new network deployments in the China long-haul and metro network markets, which, when combined with weakening prices and excess inventory, has resulted in a corresponding slowdown in the order rate of certain of our Chinese customers. The combined impact of governmental policy and the cyclical nature of a major market has made it difficult to predict demand from Chinese customers. As a result, our business, competitive position, market share and operating results have experienced, and may continue to experience, pressure.
As demand for our products in one market grows, demand in another market may decrease. For example, if we sell our products directly to content providers in addition to network equipment manufacturers, our sales to network equipment manufacturers may decrease due to reduced demand from their customers or due to dissatisfaction by network equipment manufacturers with this change in our business model. Further, the inter-data center market is subject to upgrade cycles and volatility driven by changing priorities. In addition, even in the event of expansion in our markets, we may not experience a

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corresponding increase in demand for our products. Any reduction in demand in one market that is not offset by an increase in demand in another market could adversely affect our market share or results of operations.
Our sales cycles can be long and unpredictable, and our sales efforts require considerable effort and expense. As a result, our sales and revenue are difficult to predict and may vary substantially from period to period, which may cause our results of operations to fluctuate significantly.
The timing of our sales and revenue recognition is difficult to predict because of the length and unpredictability of our products’ sales cycles. A sales cycle is the period between initial contact with a prospective network equipment manufacturer customer and any sale of our products. Customer orders are complex and difficult to complete because prospective customers generally consider a number of factors over an extended period of time before committing to purchase the products we sell. Customers often view the purchase of our products as a significant and strategic decision and require considerable time to evaluate, test and qualify our products prior to making a purchase decision and placing an order. The length of time that customers devote to their evaluation, contract negotiation and budgeting processes varies significantly. Our products’ sales cycles can be lengthy in certain cases. During the sales cycle, we expend significant time and money on sales and marketing activities and make investments in evaluation equipment, all of which lower our operating margins, particularly if no sale occurs or if the sale is delayed as a result of extended qualification processes or delays from our customers’ customers. Even if a customer decides to purchase our products, there are many factors affecting the timing of our recognition of revenue, which makes our revenue difficult to forecast. For example, there may be unexpected delays in a customer’s internal procurement processes.
Even after a customer makes a purchase, there may be circumstances or terms relating to the purchase that delay our ability to recognize revenue from that purchase. For example, recognizing revenue from the sale of our products may be subject to delivery to the customer or their carrier, acceptance testing or the products may be placed into a remote stocking location. In addition, the significance and timing of our product enhancements, and the introduction of new or similar products by our competitors, may also affect customers’ purchases both in the short-term and long-term. Further, our customers’ solutions often require components from other optical providers and any inability by those providers to ship products or maintain continuity of supply could have an impact on the sales of our customers, which impact could pass through to us. For all of these reasons, it is difficult to predict whether a sale will be completed, the particular period in which a sale will be completed or the period in which revenue from a sale will be recognized. If our sales cycles lengthen, our revenue could be lower than expected, which would have an adverse effect on our business, financial condition, results of operations and prospects.
We depend on third parties for a significant portion of the fabrication, assembly and testing of our products.
The fabrication, assembly and testing of our products is done by third-party contract manufacturers and foundries. As a result, we face competition for manufacturing capacity in the open market. We rely on foundries to manufacture wafers and on third-party manufacturers to assemble, test and manufacture substantially all of our coherent DSP ASICs, silicon PICs and modules. Our contract manufacturers implement any customer-specific configurations and packaging before customer shipments. Accordingly, we cannot directly control our product delivery schedules and quality assurance. This lack of control has in the past and in the future could result in product shortages or quality assurance problems. For example, we experienced product shortages in the second quarter of 2017 in connection with the Quality Issue. These issues have in the past and in the future could delay shipments of our products, increase our assembly or testing costs or lead to costly epidemic failure claims. In addition, the consolidation of contract manufacturers and foundries, as well as the increasing capital intensity and complexity associated with fabrication in smaller process geometries, has limited the number of available contract manufacturers and foundries and increased our dependence on a smaller number of contract manufacturers and foundries. The limited number of contract manufacturers or foundries could also increase the costs of components or manufacturing and adversely affect our results of operations, including our gross margins. In addition, to the extent we engage additional contract manufacturers or foundries, introduce new products with new manufacturers or foundries, move existing production lines to new manufacturers or foundries and/or vertically integrate processes by assuming new responsibilities internally, we could experience supply disruptions during the transition process.
Because we rely on contract manufacturers and foundries, we face several significant risks in addition to those discussed above, including:
a lack of guaranteed supply of manufactured wafers and other raw and finished components and potential higher wafer and component prices due to supply constraints;
the limited availability of, or potential delays in obtaining access to, key process technologies;

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the location of contract manufacturers and foundries in regions that are subject to earthquakes, typhoons, tsunamis and other natural disasters;
competition with our contract manufacturers’ or foundries’ other customers when contract manufacturers or foundries allocate capacity or supply during periods of capacity constraint or supply shortages; and
potential regulatory changes, including in the United States, that could in the future prohibit, or increase our costs relating to, the use of contract manufacturers and foundries in certain regions.
The manufacture of our products is a highly complex and technologically demanding process that utilizes many state of the art manufacturing processes and specialized components. Our foundries, suppliers, and contract manufacturers have from time to time experienced lower than anticipated manufacturing yields for our wafers or PIC components and modules. This often occurs during the production or assembly of new products or the installation and start-up of new process technologies and can occur even in mature processes due to break downs in mechanical systems, process controls, clean room controls, equipment failures, calibration errors and the handling of the material from station to station as well as damage resulting from the shipment and handling of the products to various points of processing.
We depend on a limited number of suppliers, some of which are sole sources, and our business could be disrupted if they are unable to meet our needs.
We depend on a limited number of suppliers of the key materials, including silicon wafers, substrate materials and components, equipment used to manufacture and test our products, and key design tools used in the design, testing and manufacturing of our products. Some of these suppliers are sole sources and in certain instances we face capacity competition from some of our suppliers. With some of these suppliers, we do not have long-term agreements and instead purchase materials and equipment through a purchase order process. As a result, these suppliers may stop supplying us materials and equipment, limit the allocation of supply and equipment to us due to increased industry demand or significantly increase their prices at any time with little or no advance notice. Our reliance on sole source suppliers or a limited number of suppliers could result in delivery problems, reduced control over product pricing and quality, and our inability to identify and qualify another supplier in a timely manner. Some of our suppliers may experience financial difficulties that could prevent them from supplying us materials, or equipment used in the design and manufacture of our products. In addition, our suppliers, including our sole source suppliers, may experience manufacturing delays or shut downs due to circumstances beyond their control such as labor issues, political unrest or natural disasters. Our suppliers, including our sole source suppliers, could also determine to discontinue the manufacture of materials, components, equipment or tools that may be difficult for us to obtain from alternative sources. In addition, the suppliers of design tools that we rely on may not maintain or advance the capabilities of their tools in a manner sufficient to meet the technological requirements for us to design advanced products or provide such tools to us at reasonable prices. Further, the industry in which our suppliers operate is subject to a trend of consolidation. To the extent this trend continues, we may become dependent on even fewer suppliers to meet our material and equipment needs. In the event we need to establish relationships with additional suppliers, doing so may be a time-consuming process, and there are no assurances that we would be able to enter into necessary arrangements with these additional suppliers in time to avoid supply constraints in sole sourced components.
Any supply deficiencies or industry allocation shortages relating to the quantities of materials, equipment or tools we use to design and manufacture our products could materially and adversely affect our ability to fulfill customer orders and our results of operations. Lead times for the purchase of certain materials, equipment and tools from suppliers have increased and in some instances have exceeded the lead times provided to us by our customers. In some cases, these lead time increases have limited our ability to respond to or meet customer demand. We have in the past and may in the future, experience delays or reductions in supply shipments, which could reduce our revenue and profitability. In addition, potential regulatory changes, including in the United States, could in the future prohibit, or increase our costs relating to, the use of suppliers in certain regions. If key components or materials are unavailable, our costs would increase and our revenue would decline.
Our revenue growth rate in prior periods is not likely to be indicative of our future growth or performance.
Our revenue growth rate in prior periods is not likely to be indicative of our future growth or performance. We experienced revenue growth rates of 100% and 63% in 2016 and 2015, respectively, in each case compared to the immediately preceding year. Conversely, our 2017 revenue declined 19% as compared to the preceding year. The revenue growth rates we experienced in 2016 and 2015 are not likely to be repeated in future periods. Our revenue for any prior quarterly or annual period should not be relied upon as any indication of our future revenue or revenue growth. If we are unable to maintain consistent revenue or revenue growth, our business, financial condition, results of operations and prospects could be materially adversely affected.

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We may not be able to maintain or improve our gross margins.
We may not be able to maintain or improve our gross margins. Factors such as slow introductions of new products, our failure to effectively reduce the cost of existing products, our failure to maintain or improve our product mix or pricing, changes in customer demand or share allocation, annual, semi-annual or quarterly price reductions and pricing discounts required under the terms of our customer contracts, pricing pressure resulting from increased competition, the availability of superior, ‘good enough’ or lower-cost technologies, market consolidation or the potential for future macroeconomic or market volatility to reduce sales volumes have the potential to adversely impact our gross margins. Our gross margins could also be adversely affected by unfavorable production yields or variances, increases in or the inability to secure appropriate periodic decreases in costs of components and materials, the timing changes in our inventory, warranty costs and related returns, changes in foreign currency exchange rates, potential inability to reduce manufacturing costs in response to any decrease in our revenue and possible exposure to inventory valuation reserves. Our competitors have a history of reducing their prices to increase or avoid losing market share, and we may have to reduce our prices to continue to effectively compete. If we are unable to maintain or improve our gross margins, our financial results will be adversely affected.
We have had a history of operating losses, and we may not maintain or increase our profitability.
Although we were profitable in the years ended December 31, 2014 through 2017, we incurred operating losses in 2009 through 2013 and again in the second quarter of 2017. We may not be able to sustain or increase profitability on a quarterly or annual basis and have experienced variability on a quarter to quarter basis. If we are unable to maintain profitability, the market value of our stock may decline, and investors in our common stock could lose all or a part of their investment.
We are subject to government regulation, including import, export, economic sanctions, and anti-corruption laws and regulations that may limit our sales opportunities, expose us to liability and increase our costs.
Our products are subject to export controls, including the U.S. Department of Commerce’s Export Administration Regulations and economic and trade sanctions regulations administered by the U.S. Treasury Department’s Office of Foreign Assets Controls, and similar laws and regulations that apply in other jurisdictions in which we distribute or sell our products. Export control and economic sanctions laws and regulations include restrictions and prohibitions on the sale or supply of certain products and on our transfer of parts, components, and related technical information and know-how to certain countries, regions, governments, persons and entities. For example, in 2016, the U.S. Department of Commerce published a final rule that added ZTE to the “Entity List” for actions contrary to the national security and foreign policy interests of the United States, which had the practical effect of preventing us from making any sales to ZTE for a period of time until a temporary general license was issued, and subsequently extended, by the U.S. Department of Commerce. The temporary license enabled us to resume sales to ZTE until a settlement agreement between the U.S. Department of Commerce and ZTE was ultimately reached and ZTE was removed from the Entity List. There can be no guarantee that the U.S. Department of Commerce will not take future regulatory action that may materially interfere with our ability to make sales to ZTE or other customers, in particular in China. Even without such action by the U.S. Department of Commerce, we would be prohibited from exporting our products to any foreign recipient if we have knowledge that a violation of U.S. export regulations has occurred, is about to occur, or is intended to occur in connection with the item. The loss or temporary loss of such customers as a result of future regulatory limitation could materially harm our business, financial condition, results of operations and prospects. In addition, our association with such customers could subject us to actual or perceived reputational harm among current or prospective investors in our common stock, suppliers or customers, customers of our customers, other parties doing business with us, or the general public. Any such reputational harm could result in the loss of investors in our common stock, suppliers or customers, which could harm our business, financial condition, results of operations or prospects.
In addition, various countries regulate the importation of certain products, through import permitting and licensing requirements, and have enacted laws that could limit our ability to distribute our products. The exportation, re-exportation, transfers within foreign countries and importation of our products, including by our partners, must comply with these laws and regulations, with any violations subject to reputational harm, government investigations, penalties and/or a denial or curtailment of our ability to export our products. Complying with export control and sanctions laws for a particular sale may be time consuming, may increase our costs and may result in the delay or loss of sales opportunities. Although we take precautions to prevent our products from being provided in violation of such laws and regulations, if we are found to be in violation of U.S. sanctions or export control laws, we and the individuals working for us could incur substantial fines and penalties. Changes in export, sanctions or import laws or regulations may delay the introduction and sale of our products in international markets, require us to spend resources to seek necessary government authorizations or to develop different versions of our products, or, in some cases, prevent the export or import of our products to certain countries, regions, governments, persons or entities altogether, which could adversely affect our business, financial condition and operating results.

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We are also subject to various domestic and international anti-corruption laws, such as the U.S. Foreign Corrupt Practices Act and the U.K. Bribery Act, as well as other similar anti-bribery and anti-kickback laws and regulations. These laws and regulations generally prohibit companies and their intermediaries from offering or making improper payments to non-U.S. officials for the purpose of obtaining, retaining or directing business. Our exposure for violating these laws and regulations increases as our international presence expands and as we increase sales and operations in foreign jurisdictions.
We may not be able to manufacture our products in volumes or at times sufficient to meet customer demands, which could result in delayed or lost revenue and harm to our reputation.
Given the high level of sophisticated functionality embedded in our products, our manufacturing processes are complex and often involve more than one manufacturer. This complexity may result in lower manufacturing yields and may make it more difficult for our current and future contract manufacturers to scale to higher production volumes. If we are unable to manufacture our products in volumes or at times sufficient to meet demand, our customers could postpone or cancel orders or seek alternative suppliers for these products, or lower cost, easier to manufacture competitive products, which would harm our reputation and adversely affect our results of operations.
If we do not effectively expand and train our direct sales force, we may be unable to add new customers or increase sales to our existing customers, and our business will be adversely affected.
We depend on our direct sales force to increase sales with existing customers and to obtain new customers. As such, we have invested and will continue to invest in our sales organization. In recent periods, we have been adding personnel and other resources to our sales function as we focus on growing our business, entering new markets and increasing our market share, and we expect to incur additional expenses in expanding our sales personnel in order to achieve revenue growth. There is significant competition for sales and sales operations personnel with the skills and technical knowledge that we require. Our ability to achieve significant revenue growth will depend, in large part, on our success in recruiting, training, retaining and integrating sufficient numbers of sales personnel to support our growth, particularly in international markets. New hires require significant training and may take significant time before they achieve full productivity. Additional personnel may not become productive as quickly as we expect, and we may be unable to hire, retain or integrate into our corporate culture sufficient numbers of qualified individuals in the markets where we do business or plan to do business. If we are unable to hire, integrate and train a sufficient number of effective sales personnel, or the sales personnel we hire are not successful in increasing sales to our existing customer base or obtaining new customers, our business, financial condition, results of operations and prospects will be adversely affected.
The markets in which we operate are highly competitive.
The market for high-speed interconnect is highly competitive. We are aware of a number of companies that have developed or are developing coherent DSP ASICs, coherent and non-coherent PICs, 100 Gbps and 400 Gbps modules and indium phosphide based optics, among other technologies, that compete directly with some or all of our current and proposed product offerings.
Competitors may be able to more quickly and effectively:
develop or respond either directly or in partnership with other market participants to new technologies or technical standards;
react to changing customer requirements and expectations;
devote needed resources to the development, production, promotion and sale of products;
attain high manufacturing yields on new product designs;
establish and take advantage of operations in lower-cost regions;
bring relevant products to the market or enable their customers to bring relevant products to the market through a faster integration cycle; and
deliver competitive products at lower prices, with lower gross margins or at lower costs than our products.
In order to expand market acceptance of our products, we must differentiate our products from those of our competition while continuing to meet the changing needs of our customers. We cannot provide assurance that we will be successful in making this differentiation or increasing acceptance of our products as we have limited resources dedicated to marketing of our products. In addition, we may take other steps to expand market acceptance of our products, including through strategic

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transactions or otherwise, which steps may not be successful and may lead to a decrease in our revenues either in the short-term or long-term. Established companies in related industries or newly funded companies targeting markets we serve, such as semiconductor manufacturers and data communications providers, may also have significantly more resources than we do and may in the future develop and offer competing products. Further, companies that have historically been competitors or industry participants on the component level have in the past and may continue to establish joint ventures or other strategic partnerships to compete with our optical interconnect modules. All of these risks may be increased if the market were to further consolidate through mergers or other business combinations between our competitors or if more capital is invested in the market to create additional competitors.
We may not be able to compete successfully with our competitors and aggressive competition in the market may result in lower prices for our products and/or decreased gross margins. New technology and investments from existing competitors and competitive threats from newly funded companies may erode our technology and product advantages and slow our overall growth and profitability. Any such development could have a material adverse effect on our business, financial condition and results of operations.
We may not be able to successfully manage our business if we are unable to improve our internal systems, processes and controls.
In order to effectively manage our operations and any future growth, we need to continue to improve our internal systems, processes and controls. We may not be able to successfully implement improvements to these systems, processes and controls in an efficient or timely manner. In addition, our systems and processes may not prevent or detect all errors, omissions or fraud. We may experience difficulties in managing improvements to our systems or processes and controls, which could impair our ability to provide products to our customers in a timely manner, causing us to lose customers, limit us to smaller deployments of our products or increase our technical support costs.
Most of our long-term customer contracts do not commit customers to specified purchase commitments, and our customers may decrease, cancel or delay their purchases at any time with little or no advance notice to us.
Most of our customers purchase our products pursuant to individual purchase orders or contracts that do not contain purchase commitments. Although some of our customers have committed to purchase a specified share of their required volume for a particular product from us, monitoring and enforcing these commitments can be difficult. Some customers provide us with their expected, non-binding forecasts for our products several months in advance, but customers may decrease, cancel or delay purchase orders already in place, and the impact of any such actions may be intensified given our dependence on a small number of large customers. If any of our major customers decrease, stop or delay purchasing our products, or change the mix of our products that they are purchasing, for any reason, our business and results of operations would be harmed. For example, one of our larger customers provided a non-binding forecast for 2017, but actual orders were approximately 40% lower than the forecasted amount. Also, several of our customers have historically experienced period-to-period demand variability or elected to defer purchases scheduled for the fourth quarter into the first quarter of the following year, resulting in a decrease in our anticipated revenue during the fourth quarter. Additionally, in the event that any of our customers lose significant market share with one or more customers within their customer base, those losses could pass through to us and materially and adversely affect our results of operations. Cancellation or delays of such orders may cause us to fail to achieve our short-term and long-term financial and operating goals and result in excess and obsolete inventory.
Our results of operations may suffer if we do not effectively manage our inventory, and we may continue to incur inventory-related charges.
We need to manage our inventory of component parts and finished goods effectively to meet changing customer requirements. Accurately forecasting customers’ product needs is difficult. Our product demand forecasts are based on multiple assumptions, each of which may introduce error into our estimates. In the event we overestimate customer demand, we may allocate resources to manufacturing products that we may not be able to sell. As a result, we could hold excess or obsolete inventory, which would reduce our profit margins and adversely affect our financial results. Conversely, if we underestimate customer demand or if insufficient manufacturing capacity is available, we could forego revenue opportunities, lose market share and damage our customer relationships. 
Also, due to our industry’s use of inventory management techniques, such as direct order fulfillment, to reduce inventory levels and the period of time inventory is held, any disruption in the supply chain could lead to more immediate shortages in product or component supply. Additionally, any enterprise system failures, including implementing new systems or upgrading existing systems that help us manage our financial, purchasing, inventory, sales, invoicing and product return functions, could harm our ability to fulfill orders and interrupt other billing and logistical processes.

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Some of our products and supplies have in the past, and may in the future, become obsolete or be deemed excess while in inventory due to rapidly changing customer specifications, changes to product structure, components or bills of material as a result of engineering changes, or a decrease in customer demand. We also have exposure to contractual liabilities to our contract manufacturers for inventories purchased by them on our behalf, based on our forecasted requirements, which may become excess or obsolete. Our inventory balances also represent an investment of cash. To the extent our inventory turns are slower than we anticipate based on historical practice, our cash conversion cycle extends and more of our cash remains invested in working capital. If we are not able to manage our inventory effectively, we may need to write down the value of some of our existing inventory or write off non-saleable or obsolete inventory. We have from time to time incurred significant inventory-related charges. Any such charges we incur in future periods could materially and adversely affect our results of operations.
Increasingly, our customers may require that we ship our finished products to a central location, which is not controlled by us. If that facility is damaged, or if our relationship with that facility deteriorates, we may suffer losses or be forced to find an alternate facility. In addition, revenue is only recognized once our customers take delivery of the products from this location, rather than when we ship them, which could have an adverse effect on our results of operations. We often lack insight into when customers will take delivery of our products, making it difficult to forecast our revenue.
The industry in which we operate is subject to significant cyclicality.
Industries focused on semiconductor and optical network technologies can be highly cyclical and characterized by constant and rapid technological change and price erosion, evolving technical standards, increasing effects of competition, frequent new product introductions and technology displacement, short product life cycles both for semiconductors and optical technologies and for many of the end products in which they are used, and changes in end market demand, as the industry has recently experienced in China. In addition, product demand in the markets in which we compete is tied to the aggregate capital expenditures of telecommunications and network and content service providers as they build out and upgrade their network infrastructure.  Capital expenditures can be highly cyclical due to the importance and focus of local initiatives, such as the ongoing telecommunications build out and upgrade in China, government funding and other factors, thus resulting in wide fluctuations in product supply and demand. In addition, foreign governments may pursue internal programs and policies to develop domestic technologies that reduce foreign customers’ demand for our products. For example, China’s Made in China 2025 program aims to build industries in numerous technological sectors, including 5G mobile communications, among others. From time to time, these factors, together with changes in general economic conditions, have caused significant industry upturns and downturns that have had a direct impact on the financial stability of our customers, their customers and our suppliers. Periods of industry downturns have been characterized by diminished demand for products, unanticipated declines in telecommunications and communications system capital expenditures, industry consolidation, excess capacity compared to demand, high inventory levels and periods of inventory adjustment, under-utilization of manufacturing capacity, changes in revenue mix and erosion of average selling prices, any of which could result in an adverse effect on our business, financial condition and results of operations. We expect our business to continue to be subject to cyclical downturns, such as the one experienced throughout 2017 in China, even when overall economic conditions are relatively stable. To the extent we cannot offset recessionary periods or periods of reduced growth that may occur in the industry or in our target markets in particular through increased market share or otherwise, our business can be adversely affected, revenue may decline and our financial condition and results of operations may be harmed. In addition, in any future economic downturn or periods of inflationary increase we may be unable to reduce our costs quickly enough to maintain profitability levels.
If our customers do not qualify our manufacturing lines or the manufacturing lines of our subcontractors for volume shipments, our operating results could suffer.
Our manufacturing lines have passed our qualification standards, as well as our technical standards. However, our customers may also require that our manufacturing lines pass their specific qualification standards and that we, and any subcontractors that we may use, be registered under international quality standards. In addition, many of our customers require that we maintain our ISO certification. In the event we are unable to maintain process controls required to maintain ISO certification, or in the event we fail to pass the ISO certification audit for any reason, we could lose our ISO certification. In addition, we may encounter quality control issues in the future as a result of relocating our manufacturing lines or ramping new products to full volume production. We may be unable to obtain customer qualification of our or our subcontractors’ manufacturing lines or we may experience delays in obtaining customer qualification of our or our subcontractors’ manufacturing lines. Such delays or failure to obtain qualifications would harm our operating results and customer relationships. If we introduce new contract manufacturers and move any production lines from existing internal or external facilities, the new production lines will likely need to be re-qualified with our customers. Any delay in the qualification of our or our subcontractors’ manufacturing lines may adversely affect our operations and financial results. Any delay in the qualification or requalification of our or our subcontractors’ manufacturing lines may delay the manufacturing of our products

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or require us to divert resources away from other areas of our business, which could adversely affect our operations and financial results.
Acquisitions or other strategic transactions that we may pursue in the future, whether or not consummated, could result in operating and financial difficulties.
We may in the future acquire businesses or assets or engage in other strategic transactions in an effort to increase our growth, enhance our ability to compete, complement our product offerings, enter new and adjacent markets, obtain access to additional technical resources, enhance our intellectual property rights, expand market acceptance of our products or pursue other competitive opportunities. If we seek acquisitions, we may not be able to identify suitable acquisition candidates at prices we consider appropriate. We are in an industry that is actively consolidating and, as a result, there is no guarantee that we will successfully and satisfactorily bid against third parties, including competitors, if we identify a target we seek to acquire.
We cannot readily predict the timing or size of our future acquisitions or other strategic transactions, or the success of such acquisitions or transactions. Failure to successfully execute on any future acquisition or other strategic transactions could have a material adverse effect on our business, prospects, financial condition and results of operations.
To the extent that we consummate acquisitions, we may face financial risks as a result, including increased costs associated with merged or acquired operations, increased indebtedness, economic dilution to gross and operating profit and earnings per share, or unanticipated costs and liabilities, including the impairment of assets and expenses associated with restructuring costs and reserves, the failure to realized expected synergies and unforeseen accounting charges. We would also face operational risks, such as difficulties in integrating the operations, retention of key personnel and our ability to maintain and support products of the acquired businesses, disrupting their or our ongoing business, increasing the complexity of our business, failing to successfully further develop the combined, acquired or remaining technology, and impairing management resources and management’s relationships with employees and customers as a result of changes in their ownership and management. Further, the evaluation and negotiation of potential acquisitions, as well as the integration of an acquired business, may divert management time and other resources.
If we are unable to successfully carry out any future acquisition or other strategic transaction, our business, financial condition and prospects for growth could suffer. In addition, we may not realize the benefits of any future acquisition or other strategic transaction to the extent anticipated and the perception of the effectiveness of our management team and our company may suffer in the marketplace. Further, even if we are able to achieve the long-term benefits associated with any future acquisition or other strategic transaction, our short-term financial conditions may be materially and adversely affected.
We may need additional equity, debt or other financing in the future, which we may not be able to obtain on acceptable terms, or at all, and any additional financing may result in restrictions on our operations or substantial dilution to our stockholders.
We may need to raise funds in the future, for example, to develop new technologies, expand our business or acquire complementary businesses. We may try to raise additional funds through public or private financings, strategic relationships or other arrangements. Our ability to obtain debt or equity funding will depend on a number of factors, including market conditions, interest rates, our operating performance and investor interest. Additional funding may not be available to us on acceptable terms or at all. If adequate funding is not available, we may be required to reduce expenditures, including curtailing our growth strategies and reducing our product development efforts, or forgo acquisition opportunities. If we succeed in raising additional funds through the issuance of equity or convertible securities, then the issuance could result in substantial dilution to existing stockholders. If we raise additional funds through the issuance of debt securities or preferred stock, these new securities would have rights, preferences and privileges senior to those of the holders of our common stock. In addition, any preferred equity issuance or debt financing that we may obtain in the future could have restrictive covenants relating to our capital raising activities and other financial and operational matters, which may make it more difficult for us to obtain additional capital and to pursue business opportunities, including potential acquisitions.
If our estimates or judgments relating to our critical accounting policies are based on assumptions that change or prove to be incorrect, our results of operations could fall below expectations of securities analysts and investors, resulting in a decline in the market price of our stock.
The preparation of our financial statements in conformity with accounting principles generally accepted in the United States of America, or GAAP, requires management to make estimates and assumptions that affect the amounts reported in our consolidated financial statements and accompanying notes. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances, as described in Part II, Item 7, “Management’s

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Discussion and Analysis of Financial Condition and Results of Operations,” in this Annual Report on Form 10-K, the results of which form the basis for making judgments about the carrying values of assets, liabilities, equity, revenue and expenses that are not readily apparent from other sources. Significant assumptions and estimates used in preparing our consolidated financial statements include those related to revenue recognition, stock-based compensation, inventories and the related contract manufacturing liabilities and income taxes. If our assumptions change or if actual circumstances differ from those in our assumptions, our results of operations may be adversely affected and may fall below the expectations of securities analysts and investors, resulting in a decline in the market price of our stock.
We may face product liability and other types of claims, which could be expensive and time consuming and result in substantial damages to us and increases in our insurance rates.
Despite quality assurance measures, defects may occur in our products. The occurrence of any defects in our products could give rise to product liability or epidemic failure claims, which could divert management’s attention from our core business, be expensive to defend, result in the loss of key customer contracts and result in sizable damage awards against us and, depending on the nature or scope of any network outage caused by a defect in or epidemic failure related to our products, could also harm our reputation. Our current insurance coverage may not be sufficient to cover these claims. Moreover, in the future, we may not be able to obtain insurance in amount or scope sufficient to provide us with adequate coverage against potential liabilities. Any product liability claims brought against us, with or without merit, could increase our product liability insurance rates or prevent us from securing continuing coverage, could harm our reputation in the industry and reduce product sales. We would need to pay any product losses in excess of our insurance coverage out of cash reserves, harming our financial condition and adversely affecting our financial performance and operating results.

In addition, we could be forced to expend significant resources in the defense of the pending securities class action and derivative lawsuits brought against us, certain of our executive officers and directors and certain other defendants, as described under Part I, Item 3 “Legal Proceedings” in this Annual Report on Form 10-K, or any other litigation in the future. Class action, derivative lawsuits and other securities litigation, whether successful or not, could result in substantial costs, damage, indemnification or settlement awards and divert management’s attention and resources from running our business, which could materially harm our reputation, financial condition and results of operations.
Our business and operating results may be adversely affected by natural disasters, health epidemics or other catastrophic events beyond our control.
Our internal manufacturing headquarters and new product introduction labs, design facilities, assembly and test facilities, and supply chain, and those of our contract manufacturers, are subject to risks associated with natural disasters, such as earthquakes, fires, tsunami, typhoons, volcanic activity, floods and health epidemics as well as other events beyond our control such as power loss, facilities structural damage, telecommunications failures and uncertainties arising out of terrorist attacks in the United States and armed conflicts or terrorist attacks overseas. The majority of our semiconductor products are currently fabricated and assembled in Japan, Singapore and Taiwan.   The majority of the internal and outsourced assembly and test facilities we utilize or plan to utilize are located in China, New Hampshire and Thailand, and some of our internal design, assembly and test facilities are located in California (design only), New Jersey and Massachusetts, regions with severe weather activity and, in the case of California, above average seismic activity. In addition, our research and development personnel are concentrated primarily in our headquarters in Maynard, Massachusetts and in our research center in Holmdel, New Jersey. Any catastrophic loss or significant damage to any of these facilities or facilities we use in the future would likely disrupt our operations, delay production, and adversely affect our product development schedules, shipments and revenue. In addition, any such catastrophic loss or significant damage could result in significant expense to repair or replace the facility and could significantly curtail our research and development efforts in a particular product area or primary market, which could have a material adverse effect on our operations and operating results.
Breaches of our cybersecurity systems could degrade our ability to conduct our business operations and deliver products to our customers, compromise the integrity of the software embedded in our products, result in significant data losses and the theft of our intellectual property, damage our reputation, expose us to liability to third parties and require us to incur significant additional costs to maintain the security of our networks and data.
We increasingly depend upon our information technology, or IT, systems to conduct virtually all of our business operations, ranging from our internal operations and product development and manufacturing activities to our marketing and sales efforts and communications with our customers and business partners. Computer programmers may attempt to penetrate our network security, or that of our website and email services, and misappropriate our proprietary information, provide false or misleading instructions to our personnel, embed malicious code in our products or cause interruptions of our service. Because the techniques used by such computer programmers to access or sabotage networks change frequently and may not be

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recognized until launched against a target, we may be unable to anticipate these techniques. In addition, sophisticated hardware and operating system software and applications that we produce or procure from third parties may contain defects in design or manufacture, including “bugs” and other problems that could unexpectedly interfere with the operation of the system. We have also outsourced a number of our business functions to third-party contractors, including our manufacturers and logistics providers, and our business operations also depend, in part, on the success of our contractors’ own cybersecurity measures and adherence to their contractual obligations to us, including in connection with their use of and access to our systems. Additionally, we depend upon our employees and contractors to appropriately handle confidential data and deploy our IT resources in safe and secure fashion that does not expose our network systems to security breaches and the loss of data. Accordingly, if our cybersecurity systems and those of our contractors fail to protect against unauthorized access, sophisticated cyberattacks and the mishandling of data by our employees and contractors, our ability to conduct our business effectively could be damaged in a number of ways, including:
sensitive data regarding our employees or business, including intellectual property and other proprietary data, could be stolen;
our electronic communications systems, including email and other methods, could be disrupted, and our ability to conduct our business operations could be seriously damaged until such systems can be restored;
our ability to process customer orders and deliver products could be degraded or disrupted, resulting in delays in revenue recognition; and
defects and security vulnerabilities could be introduced into the software embedded in or used in the development of our products, thereby damaging the reputation and perceived reliability and security of our products.
Should any of the above events occur, we could be subject to significant claims for liability from our customers and regulatory actions from governmental agencies. In addition, our ability to protect our intellectual property rights could be compromised and our reputation and competitive position could be significantly harmed. Additionally, we could incur significant costs in order to upgrade our cybersecurity systems and remediate damages. Consequently, our financial performance and results of operations could be adversely affected.
We are subject to environmental, health and safety laws and regulations, which could subject us to liabilities, increase our costs or restrict our business or operations in the future.
Our manufacturing operations and our products are subject to a variety of environmental, health and safety laws and regulations in each of the jurisdictions in which we operate or sell our products. These laws and regulations govern, among other things, the handling and disposal of hazardous substances and wastes, employee health and safety and the use of hazardous materials in, and the recycling of, our products. Failure to comply with present and future environmental, health or safety requirements, or the identification of contamination, could cause us to incur substantial costs, monetary fines, civil or criminal penalties and curtailment of operations. In addition, these laws and regulations have increasingly become more stringent over time. The identification of presently unidentified environmental conditions, more vigorous enforcement of current environmental, health and safety requirements by regulatory agencies, the enactment of more stringent laws and regulations or other unanticipated events could restrict our ability to use or expand our facilities, require us to incur additional expenses or require us to modify our manufacturing processes or the contents of our products, which could have a material adverse effect on our business, financial condition and results of operations.
Changes in industry standards and regulations could make our products obsolete, which would cause our net revenues and results of operations to suffer.
We design our products to conform to regulations established by governments and to standards set by industry standards bodies worldwide. Various industry organizations are currently considering whether and to what extent to create standards applicable to our current products or those under development. Because certain of our products are designed to conform to current specific industry standards, if competing or new standards emerge that are preferred by our customers, we may have to make significant expenditures to develop new products. If our customers adopt new or competing industry standards with which our products are not compatible, or industry groups adopt standards or governments issue regulations with which our products are not compatible, our existing products would become less desirable to our customers and our net revenues and results of operations would suffer.
If we do not achieve the anticipated financial, operational and effective tax rate efficiencies expected from our corporate tax structure, our financial condition and results of operations could be adversely affected.

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In 2015, we implemented a reorganization of our corporate structure and intercompany relationships to more closely align our corporate structure with the international nature of our business activities. This corporate restructuring has allowed us to achieve financial and operational efficiencies and to reduce our overall effective tax rate through changes in our international procurement, manufacturing and sales operations, and in the ways we develop, own and use certain intellectual property. This corporate restructuring has also allowed us to achieve financial and operational efficiencies. We cannot provide assurance that these tax benefits and efficiencies will continue into future periods.  Our efforts in connection with this corporate restructuring have required and will continue to require us to incur expenses for which we may not realize related benefits. If any of the tax benefits is challenged by the applicable taxing authorities upon audit or if there are adverse changes in domestic or international tax laws, including any legislation enacted in pursuance of the Base Erosion and Profit Shifting Initiative, described below, our results of operations may be negatively affected. In addition, if we do not operate our business in a manner that is consistent with this corporate restructuring or any applicable tax laws, we may fail to achieve the financial, operational and effective tax rate efficiencies that we anticipate and our results of operations may be negatively affected.
The U.S. Tax Cuts and Jobs Act, enacted in December 2017, makes far-ranging changes to the existing U.S. corporate tax system. This legislation establishes a quasi-territorial system for taxing foreign-source income of multinational corporations and, among other items and with varying effective dates, includes changes to U.S. federal tax rates, an additional minimum tax measured in part by “base erosion payments” involving certain members of affiliated groups, significant limitations on the deductibility of interest expense and changes to the rules governing taxable and tax-free cross-border transfers of intangible property. While we are still in the process of analyzing the effects of the U.S. Tax Cuts and Jobs Act, we anticipate it will negatively affect the financial, operational and effective tax rate efficiencies of this corporate restructuring in 2017 and subsequent years.
The implementation of our corporate restructuring increases the likelihood that unfavorable tax law changes, unfavorable government review of our tax returns, changes in our geographic earnings mix or imposition of withholding taxes on repatriated earnings could have an adverse effect on our effective tax rate and our operating results.
We have expanded and will likely continue to expand our operations into multiple non-U.S. jurisdictions in connection with our recent corporate restructuring, including those having tax rates higher and lower than those we are subject to in the United States. As a result, our effective tax rate will be influenced by the amounts of income and expense attributed to each such jurisdiction, which is materially affected by our valuation and pricing of intercompany transactions, both of which can be based on significant management assumptions or estimates. If such amounts were to change so as to increase the amounts of our net income subject to taxation in higher tax jurisdictions, or if we were to commence operations in jurisdictions assessing relatively higher tax rates, our effective tax rate could be adversely affected. As a result of our corporate restructuring, we will be subject to periodic audits or other reviews by tax authorities in the jurisdictions in which we conduct our activities in the future and there is a risk that the tax authorities could challenge our tax positions, including the assumptions and estimates on which we base the valuation and pricing of intercompany transactions.
The recently-enacted U.S. Tax Cuts and Jobs Act establishes a quasi-territorial system for taxing foreign-source income of multinational corporations and other tax proposals are being considered by legislative bodies in some of the foreign jurisdictions in which we operate that could negatively affect our effective tax rate and other tax liabilities. While we are still in the process of analyzing the effects of the U.S. Tax Cuts and Jobs Act, we anticipate it will negatively affect our financial, operational and effective tax rate efficiencies for 2017 and subsequent years.
We cannot predict the form or timing of potential legislative changes, but any newly enacted tax law could have a material adverse impact on our tax provision, net income and cash flows. This could result in additional tax liabilities or other adjustments to our historical results.
The final determination of our income tax liability may be materially different from our income tax provision.
The final determination of our income tax liability, which includes the impact of our corporate restructuring, may be materially different from our income tax provision. We are subject to income taxes in the United States and, as a result of our corporate restructuring, have become subject to income taxes in international jurisdictions. Significant judgment is required in determining our worldwide provision for income taxes. In the ordinary course of our business, there are some transactions where the ultimate tax determination is uncertain. Additionally, our calculations of income taxes are based on our interpretations of applicable tax laws in the jurisdictions in which we file or will file as a result of the proposed corporate restructuring. Although we believe our tax estimates, which include the impact of anticipated tax benefits in connection with our corporate restructuring, are and will be appropriate, the ultimate tax outcome may materially differ from the tax amounts recorded in our consolidated financial statements and may materially affect our income tax provision, net income or cash flows in the period or periods for which such determination is made.

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We are also subject to periodic examination of our income tax returns by the Internal Revenue Service in the United States and will be subject to periodic examination of our income tax returns by taxing authorities in other tax jurisdictions. We assess and will continue to assess on a regular basis the likelihood of adverse outcomes resulting from these examinations to determine the adequacy of our provision for income taxes. The outcomes from these examinations may have an adverse effect on our operating results and financial condition.
Furthermore, our provision for income tax could increase as we further expand our international operations, adopt new products or undertake intercompany transactions in light of acquisitions, changing tax laws, expiring rulings and our current and anticipated business and operational requirements.
Our ability to utilize certain net operating loss carryforwards and tax credit carryforwards may be limited under Sections 382 and 383 of the Internal Revenue Code.
As of December 31, 2017, we had net operating loss carryforward amounts, or NOLs, of approximately $41.8 million and $65.2 million for U.S. federal and state income tax purposes, respectively, and tax credit carryforward amounts of approximately $15.9 million and $11.9 million for U.S. federal and state income tax purposes, respectively. The federal and state net operating loss carryforwards will expire at various dates beginning in 2029 through 2037. The federal and state tax credit carryforwards will expire at various dates beginning in 2018 through 2037 and $0.4 million of such carryforwards will expire between 2018 and 2020 if not used. Utilization of these net operating loss and tax credit carryforward amounts could be subject to a substantial annual limitation if the ownership changes under Sections 382 and 383 of the Internal Revenue Code and similar state provisions are triggered by changes in the ownership of our capital stock. Such an annual limitation could result in the expiration of the net operating loss and tax credit carryforward amounts before utilization. Our existing NOLs may be subject to limitations arising from previous ownership changes, including in connection with our initial public offering, or IPO, a follow-on offering in 2016, and any future follow-on public offerings. Future changes in our stock ownership, some of which are outside of our control, could result in an ownership change. There is also a risk that due to regulatory and legislative changes, such as suspensions on the use of NOLs, or other unforeseen reasons, our existing NOLs could expire or otherwise be unavailable to offset future income tax liabilities. Additionally, state NOLs generated in one state generally cannot be used to offset income generated in another state. For these reasons, we may be limited in our ability to fully utilize the tax benefit from the use of our NOLs, even if our profitability would otherwise allow for it.
We are a multinational organization faced with increasingly complex tax issues in many jurisdictions, and we could be obligated to pay additional taxes in various jurisdictions, including in the United States.
As a multinational organization, we are subject to taxation in jurisdictions around the world with increasingly complex tax laws, the application of which can be uncertain. The amount of taxes we pay in these jurisdictions could increase substantially as a result of changes in the applicable tax principles, including increased tax rates, new tax laws or revised interpretations of existing tax laws and precedents, which could have a material adverse effect on our liquidity and operating results. In addition, the authorities in these jurisdictions could review our tax returns and impose additional tax, interest and penalties, and the authorities could claim that various withholding requirements apply to us or our subsidiaries or assert that benefits of tax treaties are not available to us or our subsidiaries, any of which could have a material impact on us and the results of our operations.
There is growing pressure in many jurisdictions (including the United States) and from multinational organizations such as the Organization for Economic Co-operation and Development, or OECD, and the European Union, or EU, to amend existing international tax rules in order to render them more responsive to current global business practices.  For example, the OECD has published measures for reform of the international tax rules as a product of its Base Erosion and Profit Shifting, or BEPS, initiative, which aims to standardize and modernize global tax policy and was endorsed by the G20 finance ministers. Many of the initiatives in the BEPS package will require amendments to the domestic tax legislation of various jurisdictions. Separately, the EU is asserting that a number of country-specific favorable tax regimes and rulings in certain member states may violate, or have violated, EU law, and may require rebates of some or all of the associated tax benefits to be paid by benefited taxpayers in particular case. Depending on the final form of the BEPS guidance and the legislation ultimately enacted by the OECD members, BEPS could have material adverse consequences on our effective tax rate, the amount of tax we pay and on our financial position and results of operations. In addition, while we are still in the process of analyzing the effects of the recently-enacted U.S. Tax Cuts and Jobs Act, we anticipate it will negatively affect our financial, operational and effective tax rate efficiencies for 2017 and subsequent years.
Other legislative and regulatory proposals may also affect our tax position or our business practices and operations, depending on whether and in what form they may ultimately take effect. Although we monitor these developments, due to the unpredictability and interdependency of these potential changes, it is very difficult to assess to what extent these changes may

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be implemented in the United States and other jurisdictions in which we conduct our business or to what extent these changes may impact the way in which we conduct our business or our effective tax rate due to the unpredictability and interdependency of these potential changes. Changes in tax laws and related regulations and practices could have a material adverse effect on our business operations, effective tax rate and financial position and results of operations.
We are exposed to credit risk and fluctuations in the market values of our investment portfolio.
Credit ratings and pricing of our domestic and international investments can be negatively affected by liquidity, credit deterioration, financial results, economic risk, political risk, sovereign risk or other factors. As a result, the value and liquidity of our cash, cash equivalents and marketable securities may fluctuate substantially. Therefore, although we have not realized any significant losses on our cash, cash equivalents and marketable securities, future fluctuations in their value could result in a significant realized loss.
Risks Related to Our Intellectual Property
Our products may infringe the intellectual property rights of others, which could result in expensive litigation or require us to obtain a license to use the technology from third parties, or we may be prohibited from selling certain products in the future.
Companies in the industry in which we operate frequently are sued or receive informal claims of patent infringement or infringement of other intellectual property rights. We have, from time to time, received such claims from companies, including from competitors, suppliers and customers, some of whom have substantially more resources and have been developing relevant technologies for much longer than us.
Third parties may in the future assert claims against us concerning our existing products or with respect to future products under development, or with respect to products that we may acquire through acquisitions. We have entered into and may in the future enter into indemnification obligations in favor of our customers that could be triggered upon an allegation or finding that we are infringing other parties’ proprietary rights. If we do infringe a third party’s rights and are unable to provide a sufficient work around, we may need to negotiate with holders of those rights in order to obtain a license to those rights or otherwise settle any infringement claim. A party that makes a claim of infringement against us may obtain an injunction preventing us from shipping products containing the allegedly infringing technology. We have from time to time received notices from third parties alleging infringement of their intellectual property and, in some cases, have entered into license agreements with such third parties with respect to such intellectual property. Any license agreements that we wish to enter into the future with respect to intellectual property rights may not be available to us on commercially reasonable terms, or at all. Generally, a license, if granted, would include payments of up-front fees, ongoing royalties or both. These payments or other terms, including any that restrict our ability to utilize the licensed technology in specified markets or geographic locations, could have a significant adverse effect on our operating results. In addition, in the event we are granted such a license, it is possible the license would be non-exclusive and other parties, including competitors, may be able to utilize such technology. Our larger competitors may be able to obtain licenses or cross-license their technology on better terms than we can, which could put us at a competitive disadvantage. In addition, our larger competitors may be able to buy such technology and preclude us from licensing or using such technology.
We may not in all cases be able to resolve allegations of infringement through licensing arrangements, settlement, alternative designs or otherwise. We may take legal action to determine the validity and scope of the third-party rights or to defend against any allegations of infringement. Holders of intellectual property rights could become more aggressive in alleging infringement of their intellectual property rights and we may be the subject of such claims asserted by a third party. For example, as described further in Part I, Item 3 “Legal Proceedings” in this Annual Report on Form 10-K, on January 21, 2016, ViaSat, Inc. filed a suit against us alleging, among other things, breach of contract, breach of the implied covenant of good faith and fair dealing and misappropriation of trade secrets. In the course of pursuing any of these means or defending against any lawsuits filed against us, we could incur significant costs and diversion of our resources and our management’s attention. Due to the competitive nature of our industry, it is unlikely that we could increase our prices to cover such costs. In addition, such claims could result in significant penalties or injunctions that could prevent us from selling some of our products in certain markets or result in settlements or judgments that require payment of significant royalties or damages.
Our intellectual property rights are valuable, and any inability to protect them could reduce the value of our products, services and brand.
Our future success will depend, in large part, upon our intellectual property rights, including patents, copyrights, design rights, trade secrets, trademarks and know-how. We maintain a program of identifying technology appropriate for patent and

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trade secret protection. Our practice is to require employees and consultants to execute non-disclosure and proprietary rights agreements upon commencement of employment or consulting arrangements. These agreements acknowledge our exclusive ownership of all intellectual property developed by the individuals during their work for us and require that all proprietary information disclosed will remain confidential. Such agreements may not be enforceable in full or in part in all jurisdictions and any breach could have a negative effect on our business and our remedy for such breach may be limited.
Despite our efforts, these measures can only provide limited protection. Unauthorized third parties may try to copy or reverse engineer portions of our products, may breach our cybersecurity defenses or may otherwise obtain and use our intellectual property. Patents owned by us may be invalidated, circumvented or challenged. Any of our pending or future patent applications, whether or not being currently challenged, may not be issued with the scope of the claims we seek, if at all. Legal standards relating to the validity, enforceability and scope of protection of intellectual property rights in other countries are uncertain and may afford little or no effective protection for our proprietary rights. Consequently, we may be unable to prevent our intellectual property rights from being exploited abroad. Policing the unauthorized use of our proprietary rights is expensive, difficult and, in some cases, impossible. Litigation may be necessary in the future to enforce or defend our intellectual property rights, to protect our trade secrets or to determine the validity and scope of the proprietary rights of others. Such litigation could result in substantial costs and diversion of management resources, either of which could harm our business. Accordingly, despite our efforts, we may not be able to prevent third parties from infringing upon or misappropriating our intellectual property. If we cannot protect our proprietary technology against unauthorized copying or use, we may not remain competitive.
Furthermore, many of our current and potential competitors have the ability to dedicate substantially greater resources to developing and protecting their technology or intellectual property rights than we do. In addition, our attempts to protect our proprietary technology and intellectual property rights may be further limited as our employees may be recruited by our current or future competitors and may take with them significant knowledge of our proprietary information. Consequently, others may develop services and methodologies that are similar or superior to our services and methodologies or may design around our intellectual property.
We may be subject to intellectual property litigation that could divert our resources.
In recent years, there has been significant litigation involving patents and other intellectual property rights in our industry. As we continue to gain greater market visibility, we face a higher risk of being the subject of intellectual property infringement claims. The risk of patent litigation has been amplified by the increase in the number of a type of patent holder, which we refer to as a non-practicing entity, whose sole business is to assert such claims. We could incur substantial costs in prosecuting or defending any intellectual property litigation. If we sue to enforce our rights or are sued by a third party that claims that our products infringe its rights, the litigation could be expensive and could divert our management resources.
Confidentiality arrangements with employees and others may not adequately prevent disclosure of trade secrets and other proprietary information.
We have devoted substantial resources to the development of our technology, business operations and business plans. In order to protect our trade secrets and proprietary information, we rely in significant part on confidentiality arrangements with our employees, licensees, independent contractors, advisers, channel partners, resellers and customers. These arrangements may not be effective to prevent disclosure of confidential information, including trade secrets, and may not provide an adequate remedy in the event of unauthorized disclosure of confidential information. In addition, if others independently discover trade secrets and proprietary information, we would not be able to assert trade secret rights against such parties. Effective trade secret protection may not be available in every country in which our services are available or where we have employees or independent contractors. The loss of trade secret protection could make it easier for third parties to compete with our products by copying functionality. In addition, any changes in, or unexpected interpretations of, the trade secret and employment laws in any country in which we operate may compromise our ability to enforce our trade secret and intellectual property rights. Costly and time-consuming litigation could be necessary to enforce and determine the scope of our proprietary rights, and failure to obtain or maintain trade secret protection could adversely affect our competitive business position.
We may be subject to damages resulting from claims that our employees or contractors have wrongfully used or disclosed alleged trade secrets of their former employees or other parties.
We could in the future be subject to claims that employees or contractors, or we, have inadvertently or otherwise used or disclosed trade secrets or other proprietary information of our competitors or other parties. Litigation may be necessary to defend against these claims. If we fail in defending against such claims, a court could order us to pay substantial damages and prohibit us from using technologies or features that are essential to our products, if such technologies or features are found to

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incorporate or be derived from the trade secrets or other proprietary information of these parties. In addition, we may lose valuable intellectual property rights or personnel. A loss of key personnel or their work product could hamper or prevent our ability to develop, market and support potential products or enhancements, which could severely harm our business. Even if we are successful in defending against these claims, such litigation could result in substantial costs and be a distraction to management.
We license technology from third parties, and our inability to maintain those licenses could harm our business.
We incorporate technology, including software, which we license from third parties into our products. We cannot be certain that our licensors are not infringing the intellectual property rights of third parties or that our licensors have sufficient rights to the licensed intellectual property in all jurisdictions in which we may sell our products. Some of our agreements with our licensors may be terminated for convenience by them. If we are unable to continue to license any of this technology because of intellectual property infringement claims brought by third parties against our licensors or against us, or if we are unable to continue our license agreements or enter into new licenses on commercially reasonable terms, our ability to develop and sell products containing that technology would be severely limited, and our business could be harmed. Additionally, if we are unable to license necessary technology from third parties, we may be forced to acquire or develop alternative technology of lower quality or performance standards. This would limit and delay our ability to offer new or competitive products and increase our costs of production. As a result, our margins, market share and operating results could be significantly harmed.
The use of open source software in our offerings may expose us to additional risks and harm our intellectual property.
Open source software is typically freely accessible, usable and modifiable. Certain open source software licenses require a user who intends to distribute the open source software as a component of the user’s software to disclose publicly part or all of the source code to the user’s software. In addition, certain open source software licenses require the user of such software to make any derivative works of the open source code available to others on unfavorable terms or at no cost. This can subject previously proprietary software to open source license terms.
We monitor and control our use of open source software that goes into or is used by our products in an effort to avoid unanticipated conditions or restrictions on our ability to successfully commercialize our products and believe that our compliance with the obligations under the various applicable licenses has mitigated the risks that we have triggered any such conditions or restrictions. However, such use may have inadvertently occurred in the development and offering of proprietary software on our products. Additionally, if a third-party software provider has incorporated certain types of open source software into software that we have licensed from such third party, we could be subject to the obligations and requirements of the applicable open source software licenses. This could harm our intellectual property position and have a material adverse effect on our business, results of operations and financial condition.
The terms of many open source software licenses have not been interpreted by U.S. or foreign courts, and there is a risk that those licenses could be construed in a manner that imposes unanticipated conditions or restrictions on our ability to successfully commercialize our products. For example, certain open source software licenses may be interpreted to require that we offer the software on our products that include the open source software for no cost; that we make available the source code for modifications or derivative works we create based upon, incorporating or using the open source software (or that we grant third parties the right to decompile, disassemble, reverse engineer, or otherwise derive such source code); that we license such modifications or derivative works under the terms of the particular open source license; or that otherwise impose limitations, restrictions or conditions on our ability to use, license, host, or distribute our products in a manner that limits our ability to successfully commercialize our products.
We could, therefore, be subject to claims alleging that we have not complied with the restrictions or limitations of the applicable open source software license terms or that our use of open source software infringes the intellectual property rights of a third party. In that event, we could incur significant legal expenses, be subject to significant damages, be enjoined from further sale and distribution of the software on our products that uses the open source software, be required to pay a license fee, be forced to reengineer the software on our products, or be required to comply with the foregoing conditions of the open source software licenses (including the release of the source code to our proprietary software), any of which could adversely affect our business. Even if these claims do not result in litigation or are resolved in our favor or without significant cash settlements, the time and resources necessary to resolve them could harm our business, results of operations, financial condition and reputation.
Additionally, the use of open source software can lead to greater risks than the use of third-party commercial software, as open source software does not come with warranties or other contractual protections regarding indemnification, infringement claims or the quality of the code.

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Risks Related to the Ownership of Our Common Stock
Our stock price has been and may continue to be volatile and investors in our common stock may be unable to sell their shares at or above the price at which they were purchased.
The trading prices of the securities of technology companies, including technology companies in the industry in which we operate, have been highly volatile. Some of the factors that may cause the market price of our common stock to fluctuate include:
price and volume fluctuations in the overall stock market from time to time;
volatility in the market price and trading volume of comparable companies, in particular optical industry peer companies;
actual or anticipated changes in our earnings or fluctuations in our operating results or in the expectations of securities analysts covering our industry or issuing market projection reports;
announcements of technological innovations, new products, strategic alliances or other transactions, or significant agreements by us or by our competitors;
announcements by our customers regarding significant increases or decreases in capital expenditures and their results of operations;
departure of key personnel;
litigation involving us or that may be perceived as having an impact on our business;
changes in general economic, industry and market conditions and trends, including the economic slowdown and delayed deployment and network expansion in China and the uncertainty arising from the June 2016 referendum vote in the United Kingdom in favor of exiting the European Union and the subsequent formal notification by the United Kingdom of its intention to withdraw from the European Union;
investors’ general perception of us;
significant short interest in our stock;
sales of large blocks of our stock;
announcements regarding further industry consolidation;
changes in regulations in the United States and other jurisdictions in which we do business, including domestic and international tax reform; and
actions or announcements by activist shareholders or others.
In the past, following periods of volatility in the market price of a company’s securities, securities class action and shareholder derivative litigation has often been brought against that company. See Part I, Item 3 “Legal Proceedings” in this Annual Report on Form 10-K for information concerning litigation initiated against us and certain of our executive officers and directors and certain other defendants. Because of the volatility of our stock price, we may become the target of additional securities litigation in the future. Class action, derivative lawsuits and other securities litigation, whether successful or not, could result in substantial costs, damage, indemnification or settlement awards and divert management’s attention and resources from running our business, which could materially harm our reputations, financial condition and results of operations.
Our quarterly operating results or other operating metrics have fluctuated significantly, and they are likely to continue to do so, which could cause the trading price of our common stock to decline.
Our quarterly operating results and other operating metrics have fluctuated in the past and are likely to continue to do so in the future. We expect that this trend will continue as a result of a number of factors, many of which are outside of our control and may be difficult to predict, including:
the level of demand for our products and our ability to maintain and increase our customer base;
the timing and success of new product introductions by us or our competitors or any other change in the competitive landscape of our market;
the mix of products sold in a quarter;
export control laws or regulations that could impede our ability to sell our products to certain customers or other customers in certain foreign jurisdictions;

32



pricing pressure as a result of competition or otherwise or price discounts negotiated by our customers;
our ability to ramp production of new products with our contract manufacturers;
delays or disruptions in our supply or manufacturing chain;
our ability to reduce manufacturing costs;
errors in our forecasting of the demand for our products, which could lead to lower revenue or increased costs;
seasonal and period-over-period buying patterns of some of our customers;
introduction of new products, with initial sales at relatively small volumes with resulting higher product costs;
increases in and timing of sales and marketing, research and development and other operating expenses that we may incur to grow and expand our operations and to remain competitive;
insolvency, credit, or other difficulties faced by our customers, affecting their ability to purchase or pay for our products;
insolvency, consolidation credit, or other difficulties confronting our suppliers and contract manufacturers leading to disruptions in our supply or distribution chain;
levels of product order rescheduling, cancellations, returns and contractual price protection rights, including the impact of product quality problems on our reputation;
adverse litigation judgments, settlements or other litigation-related costs, including with respect to the pending purported securities class action and derivative lawsuits;
product recalls, regulatory proceedings or other adverse publicity about our products;
fluctuations in foreign exchange rates;
the impact of the U.S. Tax Cuts and Jobs Act and other legislative and regulatory proposals to reform U.S. taxation of international business activities;
costs related to the acquisition of businesses, talent, technologies or intellectual property, including potentially significant amortization costs and possible write-downs; and
general economic conditions in either domestic or international markets, in particular the impact of any economic slowdown in China.
Any one of the factors above or the cumulative effect of some of the factors above may result in significant fluctuations in our operating results.
The variability and unpredictability of our quarterly operating results or other operating metrics could result in our failure to meet our expectations or those of any analysts that cover us or investors in our common stock with respect to revenue or other operating results for a particular period. If we fail to meet or exceed such expectations for these or any other reasons, the market price of our common stock could fall substantially, and we could face costly lawsuits, including securities class action suits.
Our management team has limited experience managing a public company.
Several members of our management team have limited experience managing a publicly traded company, interacting with public company investors and complying with the increasingly complex laws pertaining to public companies. Our management team may not successfully or efficiently manage our operation as a public company subject to significant regulatory oversight and reporting obligations under the federal securities laws and the scrutiny of securities analysts and investors. These new obligations and constituents will require significant attention from our management team and could divert their attention away from the day-to-day management of our business, which could adversely affect our business, financial condition and operating results.
Because we do not expect to pay any dividends on our common stock for the foreseeable future, returns to investors in our common stock will be limited to any increase in the value of our common stock.
We do not anticipate that we will pay any cash dividends to holders of our common stock in the foreseeable future. Instead, we plan to retain any earnings to maintain and expand our existing operations. Accordingly, investors in our common

33



stock must rely on sales of their common stock after price appreciation, which may never occur, as the only way to realize any return on their investment.
The concentration of our capital stock ownership with insiders will likely limit certain common stock investors’ ability to influence corporate matters including the ability to influence the outcome of director elections and other matters requiring stockholder approval.
As of February 15, 2018, our directors and executive officers and their affiliates beneficially owned, in the aggregate, more than 36% of our outstanding common stock. As a result, these stockholders, acting together, could have significant influence over the outcome of matters submitted to our stockholders for approval, including the election of directors and any merger, consolidation or sale of all or substantially all of our assets, and over the management and affairs of our company. This concentration of ownership may also have the effect of delaying or preventing a change in control of our company and might affect the market price of our common stock.
A significant portion of our total outstanding shares may be sold into the public market at any time, which could cause the market price of our common stock to drop significantly, even if our business is doing well.
Sales of a substantial number of shares of our common stock in the public market could occur at any time, subject to periodic trading restrictions imposed on our executive officers, directors and other insiders under our insider trading policy and other securities regulations.  These sales, or the market perception that the holders of a large number of shares intend to sell shares, could reduce the market price of our common stock. As of February 15, 2018 we had 39,863,491 shares of common stock outstanding, all of which were available for sale, subject to any applicable volume limitations under federal securities laws with respect to affiliate sales.
 
In addition, as of February 15, 2018, there were 1,488,040 shares subject to outstanding options, 2,213,323 shares subject to outstanding restricted stock units, or RSUs, and an additional 4,945,682 shares reserved for future issuance under our equity incentive plans that will become eligible for sale in the public market to the extent permitted by any applicable vesting requirements and the restrictions imposed on our affiliates under Rule 144.
 
Moreover, the holders of an aggregate of approximately 13,700,000 shares of our common stock as of February 15, 2018 have rights, subject to some conditions, to require us to file one or more registration statements covering their shares or to include their shares in registration statements that we may file for ourselves or other stockholders. If we were to register these shares for resale, they could be freely sold in the public market. If these additional shares are sold, or if it is perceived that they will be sold, in the public market, the trading price of our common stock could decline.
Anti-takeover provisions in our restated certificate of incorporation and our amended and restated bylaws, as well as provisions of Delaware law, might discourage, delay or prevent a change in control of our company or changes in our management and, therefore, depress the trading price of our common stock.
Our restated certificate of incorporation and amended and restated bylaws and Delaware law contain provisions that may discourage, delay or prevent a merger, acquisition or other change in control that stockholders may consider favorable, including transactions in which an investor in our common stock might otherwise receive a premium for their shares of our common stock. These provisions may also prevent or delay attempts by our stockholders to replace or remove our management. Our corporate governance documents include provisions:
establishing a classified board of directors with staggered three-year terms so that not all members of our board are elected at one time;
providing that directors may be removed by stockholders only for cause and only with a vote of the holders of at least 75% of the issued and outstanding shares of voting stock;
limiting the ability of our stockholders to call and bring business before special meetings and to take action by written consent in lieu of a meeting;
requiring advance notice of stockholder proposals for business to be conducted at meetings of our stockholders and for nominations of candidates for election to our board of directors;
authorizing blank check preferred stock, which could be issued with voting, liquidation, dividend and other rights superior to our common stock; and
limiting the liability of, and providing indemnification to, our directors and officers.

34



As a Delaware corporation, we are also subject to provisions of Delaware law, including Section 203 of the Delaware General Corporation Law, which limits the ability of stockholders holding more than 15% of our outstanding voting stock from engaging in certain business combinations with us. Any provision of our amended and restated certificate of incorporation or amended and restated by-laws or Delaware law that has the effect of delaying or deterring a change in control could limit the opportunity for our stockholders to receive a premium for their shares of our common stock, and could also affect the price that some investors in our common stock are willing to pay for our common stock.
The existence of the foregoing provisions and anti-takeover measures could limit the price that investors in our common stock might be willing to pay in the future for shares of our common stock. They could also deter potential acquirers of our company, thereby reducing the likelihood that an investor in our common stock could receive a premium for their common stock in an acquisition.
Our restated certificate provides that the Court of Chancery of the State of Delaware will be the exclusive forum for substantially all disputes between us and our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers or employees.
Our restated certificate provides that the Court of Chancery of the State of Delaware is the exclusive forum for any derivative action or proceeding brought on our behalf; any action asserting a breach of fiduciary duty; any action asserting a claim against us arising pursuant to the Delaware General Corporation Law, our certificate of incorporation or our bylaws; or any action asserting a claim against us that is governed by the internal affairs doctrine. The choice of forum provision may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes with us or our directors, officers or other employees, which may discourage such lawsuits against us and our directors, officers and other employees. Alternatively, if a court were to find the choice of forum provision contained in our certificate of incorporation to be inapplicable or unenforceable in an action, we may incur additional costs associated with resolving such action in other jurisdictions, which could adversely affect our business and financial condition.
We have incurred and expect that we will continue to incur increased costs and demands upon management as a result of complying with the laws and regulations affecting public companies. These increased costs and demands could adversely affect our business, operating results and financial condition.
As a public company, we will continue to incur significant legal, accounting and other expenses. We are subject to the reporting requirements of the Exchange Act, the Sarbanes-Oxley Act, the Dodd-Frank Wall Street Reform and Consumer Protection Act, and the rules and regulations of the Nasdaq Global Select Market, or Nasdaq, and other applicable securities rules and regulations impose various requirements on public companies, including establishment and maintenance of effective disclosure and financial controls and corporate governance practices. These requirements have increased and will continue to increase our legal, accounting and financial compliance costs and have made and will continue to make some activities more time consuming and costly.
The Sarbanes-Oxley Act requires, among other things, that we assess the effectiveness of our internal control over financial reporting annually and the effectiveness of our disclosure controls and procedures quarterly. Pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, or Section 404, we are required to furnish a report by our management on the effectiveness of our internal control over financial reporting and an attestation report on internal control over financial reporting issued by our independent registered public accounting firm. Compliance with Section 404, including documentation and evaluation of our internal control over financial reporting is both costly and challenging. If we are not able to comply with the requirements of Section 404 in a timely manner, or if we or our independent registered public accounting firm identifies deficiencies in our internal control over financial reporting that are deemed to be material weaknesses, the market price of our stock could decline and we could be subject to sanctions or investigations by the SEC or other regulatory authorities, which would require additional financial and management resources and could adversely affect the market price of our common stock.
Furthermore, investor perceptions of our company may suffer if deficiencies are found, and this could cause a decline in the market price of our stock. Irrespective of compliance with Section 404, any failure of our internal control over financial reporting could have a material adverse effect on our stated operating results and harm our reputation.
In addition, changing laws, regulations and standards relating to corporate governance and public disclosure are creating uncertainty for public companies, increasing legal and financial compliance costs and making some activities more time consuming. These laws, regulations, and standards are subject to varying interpretations, in many cases due to their lack of specificity, and, as a result, their application in practice may evolve over time as new guidance is provided by regulatory and governing bodies. This could result in continuing uncertainty regarding compliance matters and higher costs necessitated by ongoing revisions to disclosure and governance practices. We have and will continue to invest resources to comply with

35



evolving laws, regulations and standards, and this investment has and may result in increased general and administrative expense and a diversion of management’s time and attention from revenue-generating activities to compliance activities. If our efforts to comply with new laws, regulations and standards differ from the activities intended by regulatory or governing bodies, regulatory authorities may initiate legal proceedings against us and our business may be harmed.
Item 1B.
Unresolved Staff Comments

None.
Item 2.
Properties
Our corporate headquarters are located in Maynard, Massachusetts, where we occupy approximately 121,000 square feet pursuant to a lease expiring in February 2025. We lease an additional facility in Holmdel, New Jersey pursuant to a lease expiring in January 2022. We also maintain offices in San Jose and Mountain View, California, the United Kingdom, Canada, India, Ireland and China. We believe that our current facilities are suitable and adequate to meet our current needs. We intend to add new facilities or expand existing facilities as we add employees, and we believe that suitable additional or substitute space will be available as needed to accommodate any such expansion of our operations.
Item 3.
Legal Proceedings
On January 22, 2016, ViaSat, Inc. filed a suit against us alleging, among other things, breach of contract, breach of the implied covenant of good faith and fair dealing and misappropriation of trade secrets. On February 19, 2016, we responded to ViaSat’s suit and alleged counterclaims against ViaSat including, among other things, patent misappropriation, breach of contract, breach of the implied covenant of good faith and fair dealing, misappropriation of trade secrets and unfair competition, which ViaSat denied in its response filed March 16, 2016. We are continuing to evaluate ViaSat’s claims, but based on the information available to us today, we currently believe that this suit will not have a material adverse effect on our business or our consolidated financial position, results of operations or cash flows. On July 28, 2017, we filed a suit against ViaSat asserting commercial disparagement, libel, slander of title, unfair competition, intentional interference with advantageous relations and intentional interference with contractual relations. Both lawsuits are still pending, and discovery is closed in the 2016 action filed by ViaSat and ongoing in the 2017 action.
In August and September 2017, three purported securities class action complaints were filed in the United States District Court for the District of Massachusetts against us and certain of our executive officers (Murugesan Shanmugaraj and John Gavin). The complaints are captioned Tharp v. Acacia Communications, Inc., et al., Case No. 1:17-cv-11504 (D. Mass.), filed August 14, 2017; Zhang v. Acacia Communications, Inc., et al., Case No. 1:17-cv-11518 (D. Mass.), filed August 16, 2017; and Kebler v. Acacia Communications, Inc., et al., Case No. 1:17-cv-11695 (D. Mass.), filed September 7, 2017. Each complaint purports to be brought on behalf of an alleged class of those who purchased our securities between August 11, 2016 and July 13, 2017, and alleges that the defendants violated Sections 10(b) and/or 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder by making allegedly false and/or misleading statements regarding, among other matters, demand for our products, our financial guidance, and/or our quality control process as it relates to the Quality Issue. Each complaint seeks, among other relief, unspecified compensatory damages, attorneys’ fees, and costs.
On October 13, 2017, a fourth purported securities class action complaint was filed in the United States District Court for the District of Massachusetts against us, certain of our directors and executive officers (Murugesan Shanmugaraj, John Gavin, Francis Murphy, Eric Swanson, Peter Chung, Benny Mikkelsen, Stan Reiss, John Ritchie, Vincent Roche, Mehrdad Givehchi, John LoMedico, Bhupendra Shah and Christian Rasmussen), certain persons or entities that sold our common stock in our October 2016 follow-on public offering, and the underwriters of such offering, captioned Rollhaus v. Acacia Communications, Inc., et al., Case No. 17-cv-11988 (D. Mass). The complaint purports to be brought on behalf of an alleged class of those who purchased our common stock pursuant to or traceable to the offering, and alleges that the defendants violated Sections 11, 12(a)(2) and/or 15 of the Securities Act of 1933 by making allegedly false and/or misleading statements regarding, among other matters, demand for our products, our financial guidance, and/or our quality control process as it relates to the Quality Issue. The complaint seeks, among other relief, unspecified compensatory damages, rescission, attorneys’ fees, and costs.
On November 7, 2017, the court consolidated these four securities class actions (under docket number 1:17-cv-11504). On November 9, 2017, the court appointed lead plaintiffs for the consolidated actions. Lead plaintiffs filed a consolidated amended class action complaint on January 8, 2018. The amended complaint makes allegations similar to those in the original four complaints, against the same defendants, and alleges that some or all of the defendants violated Sections 11, 12(a)(2) and/

36



or 15 of the Securities Act of 1933 and Sections 10(b) and/or 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder.
In November and December 2017, three purported shareholder derivative lawsuits were filed in the United States District Court for the District of Massachusetts against certain of our directors and executive officers (Murugesan Shanmugaraj, John Gavin, Francis Murphy, Eric Swanson, Peter Chung, Benny Mikkelsen, Stan Reiss, John Ritchie, Vincent Roche, Mehrdad Givehchi, Bhupendra Shah and Christian Rasmussen) and the company as a nominal defendant. The complaints are captioned Colgan v. Shanmugaraj et al., Case No. 1:17-cv-12350 (D. Mass.), filed November 29, 2017; Wong v. Shanmugaraj et al., Case No. 1:17-cv-12550 (D. Mass.), filed December 22, 2017; and Dennis v. Shanmugaraj et al., Case No. 1:17-cv-12571 (D. Mass.), filed December 28, 2017. The court has consolidated these complaints with the class actions (under docket number 1:17-cv-11504). Each complaint generally alleges that that the individual defendants breached fiduciary duties owed to the company by making or causing the company to make allegedly false and/or misleading statements regarding, among other matters, demand for our products, our financial guidance, and/or our quality control process as it relates to the Quality Issue. The complaints also allege that certain individual defendants caused the company to issue an allegedly false and/or misleading proxy statement on or about April 6, 2017 regarding, among other matters, the reelection of certain directors. The complaints purport to assert derivative claims for violation of Section 14(a) of the Securities Exchange Act of 1934, breach of fiduciary duty, waste of corporate assets, unjust enrichment, abuse of control and/or gross mismanagement, and seek to recover on behalf of the company for any liability it incurs as a result of the individual defendants’ alleged misconduct. The complaints seek declaratory, equitable and monetary relief, restitution, and attorneys’ fees and costs.
We intend to engage in a vigorous defense of the class action and derivative lawsuits described above. However, we are unable to predict the ultimate outcome of these proceedings, and, therefore cannot estimate possible losses or ranges of losses, if any, or the materiality of any such losses. An unfavorable resolution of these matters in any reporting period may have a material adverse effect on our results of operations and cash flows for that period. In addition, the timing of the final resolution of these proceedings is uncertain. We will incur litigation and other expenses as a result of these proceedings, which could have a material impact on our business, consolidated financial position, results of operations, and cash flows.
In addition, from time to time we may become involved in legal proceedings or be subject to claims arising in the ordinary course of our business. Although the results of litigation and claims cannot be predicted with certainty, we currently believe that the final outcome of these ordinary course matters will not have a material adverse effect on our business or on our consolidated financial position, results of operations or cash flows. Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.
Item 4.
Mine Safety Disclosures
Not applicable.

37



PART II
Item 5.
Market for Registrant’s Common Shares, Related Stockholder Matters and Issuer Purchases of Equity Securities
Market Information
Our common stock has been listed on the Nasdaq Global Select Market under the symbol “ACIA” since May 13, 2016. The following table sets forth on a per share basis, for the periods indicated, the high and low sale prices of our common stock as reported by the Nasdaq Global Select Market.
 
Price Range
 
High
 
Low
2016
 

 
 

Quarter ended June 30, 2016 (from May 13, 2016)
$
45.75

 
$
27.05

Quarter ended September 30, 2016
$
128.73

 
$
39.29

Quarter ended December 31, 2016
$
113.54

 
$
61.75

2017
 

 
 

Quarter ended March 31, 2017
$
67.60

 
$
50.56

Quarter ended June 30, 2017
$
59.65

 
$
40.99

Quarter ended September 30, 2017
$
49.50

 
$
39.00

Quarter ended December 31, 2017
$
48.26

 
$
35.60

 
Holders
As of the close of business on February 15, 2018, there were approximately 31 holders of record of our common stock according to the records of our transfer agent. A greater number of holders of our common stock are “street name” or beneficial owners, whose shares of record are held by banks, brokers and other financial institutions.
Dividend Policy
We have never declared or paid any dividends on our capital stock. We intend to retain future earnings, if any, to finance the operation and expansion of our business and do not anticipate paying any cash dividends in the foreseeable future. Any future determination to declare dividends will be subject to the discretion of our board of directors and applicable law, and will depend on various factors, including our results of operations, financial condition, prospects and any other factors deemed relevant by our board of directors.
 
Securities Authorized for Issuance Under Equity Compensation Plans
The information required by this item with respect to our equity compensation plans is incorporated by reference to our Proxy Statement for the 2018 Annual Meeting of Stockholders to be filed with the Securities and Exchange Commission within 120 days of the fiscal year ended December 31, 2017.

38



Performance Graph
This performance graph shall not be deemed “soliciting material” or to be “filed” with the SEC for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, Exchange Act, or otherwise subject to the liabilities under that section, and shall not be deemed to be incorporated by reference into any of our filings under the Securities Act of 1933, as amended, or the Exchange Act.
The following graph compares the cumulative total return to stockholders for our common shares for the period from May 13, 2016 (the date our common stock began trading on the Nasdaq Global Select Market) through December 31, 2017 with the Nasdaq Composite Index. The comparison assumes an investment of $100 is made on May 13, 2016 in our common shares and in each of the indices and in the case of the indices it also assumes reinvestment of all dividends. The performance shown is not necessarily indicative of future performance.
chart-2fed64588333d846d56.jpg
Recent Sales of Unregistered Securities
None.
Use of Proceeds
None.
  Purchases of Equity Securities by the Issuer and Affiliated Purchaser
None.

39



Item 6.
Selected Financial Data

The consolidated income statement data for the years ended December 31, 2017, 2016 and 2015, and the selected consolidated balance sheet data as of December 31, 2017 and 2016, are derived from our audited consolidated financial statements and related notes included elsewhere in this Annual Report on Form 10-K. The consolidated income statement data for the year ended December 31, 2014 and the selected balance sheet data as of December 31, 2015 and 2014 has been derived from our audited financial statements not appearing in this Annual Report on Form 10-K. Our historical results are not necessarily indicative of the results to be expected in any future period. You should read the following selected consolidated financial data in conjunction with Part II, Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our consolidated financial statements and the related notes appearing elsewhere in this Annual Report on Form 10-K.
 
Year Ended December 31,
 
2017
 
2016
 
2015
 
2014
 
(in thousands)
Consolidated Income Statement Data:


 


 


 
 
Revenue
$
385,166

 
$
478,412

 
$
239,056

 
$
146,234

Cost of revenue(1)
217,326

 
257,425

 
145,350

 
93,558

Gross profit
167,840

 
220,987

 
93,706

 
52,676

Operating expenses:
 

 
 

 
 

 
 
Research and development(1)
92,027

 
75,696

 
38,645

 
28,471

Sales, general and administrative(1)
38,807

 
27,676

 
13,124

 
6,615

(Gain) loss on disposal of property and equipment
(47
)
 
25

 

 
108

Total operating expenses
130,787

 
103,397

 
51,769

 
35,194

Income from operations
37,053

 
117,590

 
41,937

 
17,482

Total other income (expense), net
3,250

 
(2,969
)
 
(2,132
)
 
(1,029
)
Income before provision (benefit) for income taxes
40,303

 
114,621

 
39,805

 
16,453

Provision (benefit) for income taxes
1,795

 
(16,956
)
 
(715
)
 
2,933

Net income
$
38,508

 
$
131,577

 
$
40,520

 
13,520

Net income per share attributable to common stockholders:
 
 
 
 
 
 
 
Basic
$
0.99

 
$
3.77

 
$
1.18

 
$
0.31

Diluted
$
0.92

 
$
3.22

 
$
0.91

 
$
0.23

 
(1)
Stock-based compensation included in the consolidated statements of income data above was as follows:
 
Year Ended December 31,
 
2017
 
2016
 
2015
 
2014
 
(in thousands)
Cost of revenue
$
1,993

 
$
1,629

 
$
75

 
$
17

Research and development
14,150

 
12,347

 
561

 
258

Sales, general and administrative
7,230

 
6,769

 
189

 
132

Total stock-based compensation
$
23,373

 
$
20,745

 
$
825

 
$
407

 

40



 
December 31, 2017
 
December 31, 2016
 
December 31, 2015
 
December 31, 2014
 
(in thousands)
Consolidated Balance Sheet Data:
 
 
 
 
 
 
 
Cash and cash equivalents
$
67,495

 
$
206,402

 
$
27,610

 
21,128

Marketable securities
297,115

 
104,004

 

 

Working capital
361,621

 
381,707

 
55,147

 
31,710

Total assets
611,250

 
516,936

 
130,744

 
65,660

Long-term debt, including current portion

 

 

 
2,115

Total liabilities
109,200

 
82,141

 
51,948

 
28,409

Redeemable convertible preferred stock

 

 
70,780

 
66,427

Total stockholders' equity (deficit)
502,050

 
434,795

 
8,016

 
(29,176
)

41



Item 7.Management’s Discussion and Analysis of Financial Condition and Results of Operations

You should read the following discussion of our financial condition and results of operations together with our consolidated financial statements and the related notes and other financial information included elsewhere in this Annual Report on Form 10-K. The following discussion contains forward-looking statements that reflect our plans, estimates and beliefs. Our actual results could differ materially from those discussed in the forward-looking statements. Factors that could cause or contribute to these differences include those discussed below and elsewhere in this Annual Report on Form 10-K, particularly in the section titled “Risk Factors.”
Company Overview
Our mission is to deliver high-speed coherent optical interconnect products that transform communications networks, relied upon by cloud infrastructure operators and content and communication service providers, through improvements in performance and capacity and reductions in associated costs. By converting optical interconnect technology to a silicon-based technology, a process we refer to as the siliconization of optical interconnect, we believe we are leading a disruption that is analogous to the computing industry’s integration of multiple functions into a microprocessor. Our products include a family of low-power coherent digital signal processor application-specific integrated circuits, or DSP ASICs, and silicon photonic integrated circuits, or silicon PICs, which we have integrated into families of optical interconnect modules with transmission speeds ranging from 100 to 400 gigabits per second, or Gbps, for use in long-haul, metro and inter-data center markets. We are also developing our AC1200 module that will enable, across dual wavelengths, transmission capacity of 1.2 terabits per second (1,200 Gbps). Our modules perform a majority of the digital signal processing and optical functions in optical interconnects and offer low power consumption, high density and high speeds at attractive price points.
Key Factors Affecting our Performance
We believe that our future success will depend on many factors, including our ability to expand sales to our existing customers and add new customers over time. While these areas present significant opportunity, they also present risks that we must manage to ensure successful results. See Part I, Item 1A “Risk Factors” in this Annual Report on form 10-K for a discussion of these risks. If we are unable to address these challenges, our business could be adversely affected.
Network Service Provider Investment in High-Speed Optical Equipment.    Cloud and service providers are continuing to invest in higher capacity networks to support the continued growth in demand for data traffic. We believe that 100 Gbps and 400 Gbps coherent optical technologies, and in the near future interfaces supporting transmission capacity of one terabit per second (1,000 Gbps) and above, will continue to replace older technologies in long-haul, metro and inter-data center networks. Our business and results depend on the continued investment by network service providers in these advanced networks.
Expanding Sales to Existing Customer Base.    We expect that a substantial portion of our future sales will be follow-on sales to existing customers. One of our sales strategies is to maintain a high level of customer satisfaction by delivering our products with compelling value propositions. We believe that our current customers present us with significant opportunities for additional product sales given the existing and expected market share of these customers and our prior sales experience with them. We also believe that our customers will continue to design our products into their network equipment products in an effort to maintain and potentially grow their market share over time as growth in the overall market for optical interconnect continues to grow. Our customers have historically shown a high propensity to purchase new products from us over multiple quarters and in many cases over multiple years. In addition, several of our customers have elected to integrate an increasing number of our products into their network equipment product lines. For example, the eight customers who first purchased products from us in 2011 generated $12.7 million of revenue in 2011 compared to $256.4 million of revenue in 2017, representing a compound annual growth rate of 65%. For the period of 2011 through 2017, these eight customers generated cumulative revenue of $1.0 billion.
Adding New Customers.    We believe that the metro and inter-data center markets are still in the early stages of adoption. We intend to add new customers over time by continuing to invest in our technology and business development team to capitalize on these new opportunities and through potential strategic transactions. Our products and technology have accelerated the rate at which optical interconnect technology can be easily deployed and designed into newer generation network equipment, thus making it easier to integrate our products across many system applications. Generally, we educate prospective customers in these markets about the technical merits and capabilities of our products, the potential cost savings of our products and the costs of designing and utilizing internally developed solutions. We build relationships with prospective customers at all levels in a customer’s organizational hierarchy. We believe that customer references combined with our product and technology strengths and capabilities have been, and will continue to be, an important factor in winning new business.

42



Selling More Highly Integrated and Higher-Performance Products.    Our results of operations have been, and we believe will continue to be, affected by our ability to design and sell more highly integrated products with improved performance and increased functionality. We aim to grow our revenue and expand our margins by enabling customers to transition from previously deployed 10 Gbps and 40 Gbps solutions to our 100 Gbps and 400 Gbps modules and demonstrate the value proposition to the growing number of metro and inter-data center network equipment designers and manufacturers. Our ability to maintain our current revenue levels and sustain our gross margins will depend, in part, upon our continued sales of our newer, more integrated and higher performance products, and our quarterly results of operations can be significantly impacted by the mix of products sold during the period.
Investing in Research and Development for Growth.    We believe that the market for our optical interconnect technology products is still in the early stages of adoption and we intend to continue investing for long-term growth. We expect to continue to invest heavily in coherent digital signal processing, optics integration, silicon photonics, hardware engineering and software, all of which afford ongoing vertical integration of components into our core technologies. By investing in research and development, we believe we will be well positioned to continue to design new products and grow our business and take advantage of our large market opportunity. We expect that our results of operations will be impacted by the timing and size of these investments.
Customer Concentration.    During 2017, 2016 and 2015, our five largest customers in each period (which differed by period) accounted for 70%, 78%, and 74% of our revenue, respectively. We expect continued variability in our customer concentration and timing of sales on a quarterly and annual basis. In addition, we have provided, and may in the future provide, annual and semi-annual pricing reductions and pricing discounts to large volume customers, which may result in lower margins for the period in which such sales occur. Our gross margins may also fluctuate as a result of the timing of such sales and the mix of products sold to large volume customers.
Key Components of our Results of Operations
Revenue
We derive substantially all of our revenue from the sale of our products within our 100 and 400 Gbps product families, which we sell through our direct sales force. We sell a substantial majority of our products to network equipment manufacturers for ultimate sale to communications and content service providers and data center and cloud infrastructure operators, which we refer to together as cloud and service providers, and we expect network equipment manufacturer customers to be the primary market for our products for the foreseeable future. Our negotiated terms and conditions of sale do not allow for product returns.
Our revenue is affected by changes in the number, product mix and average selling prices of our products. Our product revenue is typically characterized by a life cycle that begins with sales of pre-production samples and prototypes followed by the sale of early production models with higher average selling prices and lower volumes, followed by broader market adoption, higher volumes, and average selling prices that are lower than initial levels. In addition, our product revenue may be affected by contractual commitments to significant customers that obligate us to reduce the selling price of our products on an annual or semi-annual basis.
Cost of Revenue
Our cost of revenue is comprised primarily of the costs of procuring goods from our contract manufacturers and other suppliers. In addition, cost of revenue includes assembly, test, quality assurance, warranty and logistics-related fees, impacts of manufacturing yield, depreciation, general overhead costs and costs associated with excess and obsolete inventory.
Personnel-related expenses include salaries, benefits and stock-based compensation, as well as consulting fees for those personnel engaged in the management of our contract manufacturers, new product manufacturing activities, logistical support, manufacturing and test engineering and supply chain management.
Gross Profit
Our gross profit has been, and may in the future be, influenced by several factors including changes in product mix, sales of more highly integrated products, target end markets for our products, pricing due to competitive pressure and favorable and unfavorable changes in production costs, including global demand for electronic components used in our products. As some products mature and unit volumes increase, the average selling prices of those products may decline. These declines often coincide with improvements in manufacturing yields and lower wafer, component, assembly and test costs, which lower production costs and may offset some of the margin reduction that results from lower selling prices. We anticipate that our

43



newer modules, which integrate our silicon PIC, will contribute higher gross profit over time than some of our older products, because the integration of our silicon PIC into these products eliminates the need for us to purchase several high-cost discrete components for the same level of functionality, thus improving margins on these products. In addition, we have shifted the manufacturing of the majority of our high volume products to contract manufacturers located in lower-cost regions, which generally decreases the cost of the manufacturing of these products and correspondingly improves margins. However, the current U.S. President, members of his Administration, and other public officials, including members of the current U.S. Congress, continue to signal a willingness to revise, renegotiate, or terminate various multilateral trade agreements under which U.S. companies currently exchange products and services around the world, and to impose new taxes on certain goods imported into the United States or other adverse consequences on companies importing certain goods into the United States. Since we rely primarily upon non-U.S. manufacturers to make our products, such steps, if adopted, could make our products more expensive and less competitive in the U.S. market. There can be no assurance that pending or future legislation or executive action in the United States that could significantly increase our cost of manufacturing our high volume products and decrease our margins will not be enacted.  See Part I, Item 1A “Risk Factors” in this Annual Report on Form 10-K under the heading “Risks Related to our Business and IndustryWe generate a significant portion of our revenue from international sales and rely on foreign manufacturers to make our products, and therefore are subject to additional risks associated with our international operations” for further information.
Although we primarily procure and sell our products in U.S. dollars, our contract manufacturers incur many costs, including labor and component costs, in other currencies. To the extent that the exchange rates move unfavorably for our contract manufacturers, they may try to pass resulting costs on to us, which could have a material effect on our future average unit costs. Our gross profit may fluctuate from period to period as a result of changes in average selling prices related to new product introductions, existing product transitions into larger scale commercial volumes, maturity of a product within its life cycle, the effect of prototype and sample sales and resulting mix of products within a family of products. In future periods, we may hedge certain significant transactions denominated in currencies other than the U.S. dollar.
Operating Expenses
We classify our operating expenses as research and development and sales, general and administrative expenses.
Research and development expenses consist primarily of salary and benefit expenses, including stock-based compensation, for employees and costs for contractors engaged in research, design and development activities incurred directly, and with support from, external vendors, such as outsourced research and development costs, as well as costs for prototypes, depreciation, purchased intellectual property, facilities and travel. In future periods, we may hedge certain significant outsourced research and development transactions denominated in currencies other than the U.S. dollar. Over time, we expect our research and development costs to increase in absolute dollars as we continue making significant investments in developing new products and new technologies, including with respect to increased performance and smaller industry-standard form factors.
Sales, general and administrative expenses include salary and benefit expenses, including stock-based compensation, for employees and costs for contractors engaged in sales, marketing, customer service, technical support, and general and administrative activities, as well as the costs of legal and other professional services expenses, trade shows, marketing programs, promotional materials, bad debt expense, facilities, general liability insurance and travel. Over time, we expect our sales, general and administrative expenses to increase in absolute dollars primarily due to our continued efforts to expand our business.
Other Income (Expense), Net
Other income (expense), net consists of interest income earned on our cash and investment balances, foreign currency transaction gains and losses, and, until our 2016 initial public offering, losses on the revaluation of our redeemable convertible preferred stock warrant liability. To date, we have not utilized derivatives to hedge our foreign exchange risk as we believe the risk to be immaterial to our results of operations. In future periods, we may hedge certain significant transactions denominated in currencies other than the U.S. dollar as we expand our international operations.
Provision (Benefit) for Income Taxes
We are subject to income taxes in the United States and foreign jurisdictions in which we do business. These foreign jurisdictions have statutory tax rates different from those in the United States. Our effective tax rates will vary depending on the relative proportion of foreign to U.S. income, the absorption of foreign tax credits, changes in corporate structure, changes in the valuation of our deferred tax assets and liabilities and changes in tax laws and interpretations of those laws. We plan to regularly assess the likelihood of outcomes that could result from the examination of our tax returns by the U.S. Internal

44



Revenue Service, or IRS, and other tax authorities to determine the adequacy of our income tax reserves and expense. Should actual events or results differ from our then-current expectations, charges or credits to our provision for income taxes may become necessary. Any such adjustments could have a significant effect on our results of operations. See Part I, Item 1A “Risk Factors” in this Annual Report on Form 10-K under the heading “Risks Related to our Business and Industry—The final determination of our income tax liability may be materially different from our income tax provision” for further information.
Results of Operations
The following tables set forth the components of our consolidated income statements for each of the periods presented and as a percentage of revenue for those periods.  The period-to-period comparison of operating results is not necessarily indicative of results for future periods.
 
Year Ended December 31,
 
2017
 
2016
 
2015
 
(in thousands)
Consolidated Income Statement Data:


 


 


Revenue
$
385,166

 
$
478,412

 
$
239,056

Cost of revenue(1)
217,326

 
257,425

 
145,350

Gross profit
167,840

 
220,987

 
93,706

Operating expenses:
 

 
 

 
 

Research and development(1)
92,027

 
75,696

 
38,645

Sales, general and administrative(1)
38,807

 
27,676

 
13,124

(Gain) loss on disposal of property and equipment
(47
)
 
25

 

Total operating expenses
130,787

 
103,397

 
51,769

Income from operations
37,053

 
117,590

 
41,937

Total other income (expense), net
3,250

 
(2,969
)
 
(2,132
)
Income before provision (benefit) for income taxes
40,303

 
114,621

 
39,805

Provision (benefit) for income taxes
1,795

 
(16,956
)
 
(715
)
Net income
$
38,508

 
$
131,577

 
$
40,520

 
(1)
Stock-based compensation included in the consolidated income statement data was as follows:
 
Year Ended December 31,
 
2017
 
2016
 
2015
 
(in thousands)
Cost of revenue
$
1,993

 
$
1,629

 
$
75

Research and development
14,150

 
12,347

 
561

Sales, general and administrative
7,230

 
6,769

 
189

Total stock-based compensation
$
23,373

 
$
20,745

 
$
825


45



 
Year Ended December 31,
 
2017
 
2016
 
2015
Revenue
100
%
 
100
 %
 
100
 %
Cost of revenue
56
%
 
54
 %
 
61
 %
Gross profit
44
%
 
46
 %
 
39
 %
Operating expenses:


 
 

 
 

Research and development
24
%
 
16
 %
 
16
 %
Sales, general and administrative
10
%
 
6
 %
 
5
 %
(Gain) loss on disposal of property and equipment

 

 

Total operating expenses
34
%
 
22
 %
 
22
 %
Income from operations
10
%
 
25
 %
 
18
 %
Total other income (expense), net
1
%
 
(1
)%
 
(1
)%
Income before provision (benefit) for income taxes
10
%
 
24
 %
 
17
 %
Provision (benefit) for income taxes
%
 
(4
)%
 
 %
Net income
10
%
 
28
 %
 
17
 %
 
Percentages in the table above are based on actual values. Totals may not sum due to rounding.
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016
Revenue
Revenue and the related changes during the years ended December 31, 2017 and 2016 were as follows:
 
 
Year Ended December 31,
 
Change in
 
2017
 
2016
 
$
 
%
 
(dollars in thousands)
Revenue
$
385,166

 
$
478,412

 
$
(93,246
)
 
(19
)%
 
Revenue decreased by $93.2 million, or 19%, to $385.2 million in the year ended December 31, 2017 from $478.4 million in the year ended December 31, 2016. The decrease was primarily due to a $157.3 million decrease in revenue from sales of products within our 100 Gbps product family. This decrease in revenue was partially offset by a $34.7 million increase in revenue from sales of products within our 400 Gbps product family and a $29.4 million increase in revenue from sales of products within our 200 Gbps product family.
Our product sales based on the geographic region of our customers’ delivery location, which in certain instances may be the location of a contract manufacturer rather than our end customer, are as follows:
 
 
Year Ended
 
As a % of
 
Year Ended
 
As a % of
 
Change in
 
December 31, 2017
 
Total Revenue
 
December 31, 2016
 
Total Revenue
 
$
 
%
 
(dollars in thousands)
Americas
$
62,992

 
16
%
 
$
92,452

 
19
%
 
$
(29,460
)
 
(32
)%
EMEA
102,112

 
27
%
 
147,548

 
31
%
 
(45,436
)
 
(31
)%
APAC
220,062

 
57
%
 
238,412

 
50
%
 
(18,350
)
 
(8
)%
Total revenue
$
385,166

 
100
%
 
$
478,412

 
100
%
 
$
(93,246
)
 
(19
)%

Americas
Revenue from product sales to customers with ship-to locations in the Americas decreased by $29.5 million, or 32%, to $63.0 million in the year ended December 31, 2017 from $92.5 million in the year ended December 31, 2016. The decrease was primarily due to a $28.8 million decrease in such sales of products within our 100 Gbps product family and a $10.0 million decrease in such sales of products within our 400 Gbps product family, partially offset by a $9.4 million increase in such sales of products within our 200 Gbps product family.

46



Europe, the Middle East and Africa
Revenue from product sales to customers with ship-to locations in Europe, the Middle East and Africa, or EMEA, decreased by $45.4 million, or 31%, to $102.1 million in the year ended December 31, 2017 from $147.5 million in the year ended December 31, 2016. The decrease was primarily due to a $56.7 million decrease in such sales of products within our 100 Gbps product family. This decrease was partially offset by a $7.2 million increase in such sales of products within our 400 Gbps product family and a $4.1 million increase in such sales of products within our 200 Gbps product family.
Asia Pacific
Revenue from product sales to customers with ship-to locations in the Asia Pacific region, or APAC, decreased by $18.4 million, or 8%, to $220.1 million in the year ended December 31, 2017 from $238.4 million in the year ended December 31, 2016. The decrease was primarily due to a $71.8 million decrease in such sales of products within our 100 Gbps product family, partially offset by a $37.6 million increase in such sales of products within our 400 Gbps product family and a $15.9 million increase in such sales of products within our 200 Gbps product family.
Cost of Revenue and Gross Profit
 
 
Year Ended December 31,
 
Change in
 
2017
 
2016
 
$
 
%
 
(dollars in thousands)
Cost of revenue
$
217,326

 
$
257,425

 
$
(40,099
)
 
(16
)%
Gross profit percentage
43.6
%
 
46.2
%
 

 

 
Cost of revenue decreased $40.1 million, or 16%, to $217.3 million in the year ended December 31, 2017 from $257.4 million in the year ended December 31, 2016. The decrease was mainly due to decreased sales volumes.
Our gross profit percentage decreased to 43.6% in the year ended December 31, 2017 compared to 46.2% in the year ended December 31, 2016. The decrease was primarily due to increased costs related to the quality issue at one of our manufacturers, as described in Note 11, Commitments and Contingencies of the Notes to Consolidated Financial Statements contained in Part II, Item 8 of this Annual Report on Form 10-K, or Quality Issue, as well as the impact of fixed costs relative to the current period revenue volume and continued investments in future technologies.
Research and Development
 
 
Year Ended December 31,
 
Change in
 
2017
 
2016
 
$
 
%
 
(dollars in thousands)
Research and development
$
92,027

 
$
75,696

 
$
16,331

 
22
%
 
Research and development expense increased $16.3 million, or 22%, to $92.0 million in the year ended December 31, 2017 from $75.7 million in the year ended December 31, 2016, due to a $14.8 million increase in personnel-related and other costs mainly attributable to hiring of additional engineers and quality personnel, and a $3.2 million increase in depreciation expense as we continue investing in future technologies. These increases were partially offset by a $1.7 million decrease related to the timing of our prototype development projects. 
Sales, General and Administrative
 
 
Year Ended December 31,
 
Change in
 
2017
 
2016
 
$
 
%
 
(dollars in thousands)
Sales, general and administrative
$
38,807

 
$
27,676

 
$
11,131

 
40
%
 

47



Sales, general and administrative expenses increased $11.1 million, or 40%, to $38.8 million in the year ended December 31, 2017 from $27.7 million in the year ended December 31, 2016, due to a $6.4 million increase in personnel-related and other costs to support our growth and the continued requirements of being a public company, and a $4.6 million increase in professional services expense, which was primarily attributable to increased legal expenses. 
Other Income (Expense), Net

 
Year Ended December 31,
 
Change in
 
2017
 
2016
 
$
 
%
 
(dollars in thousands)
Total other income (expense), net
$
3,250

 
$
(2,969
)
 
$
6,219

 
(209
)%
 
Total other income, net was $3.3 million during the year ended December 31, 2017, as compared to other expense, net of $3.0 million in the year ended December 31, 2016. During the year ended December 31, 2017, other income, net was mainly comprised of interest income from marketable securities of $3.4 million. During the year ended December 31, 2016, other expense, net, was mainly comprised of a $3.4 million loss from revaluation of our preferred stock warrant liability. The preferred stock warrants were converted to common stock warrants during the second quarter of 2016 and as a result, there was no fair value adjustment during the year ended December 31, 2017.
Provision (Benefit) for Income Taxes
 
 
Year Ended December 31,
 
Change in
 
2017
 
2016
 
$
 
%
 
(dollars in thousands)
Provision (benefit) for income taxes
$
1,795

 
$
(16,956
)
 
$
18,751

 
(111
)%
Effective tax rate
4
%
 
(15
)%
 

 
19
 %
The provision for income taxes for the year ended December 31, 2017 was $1.8 million compared to a benefit from income taxes of $17.0 million for the year ended December 31, 2016. Approximately 80% of our revenues are derived from sales to customers located outside the U.S. A significant percentage of our pre-tax income in the years ended December 31, 2017 and 2016 was generated internationally in jurisdictions with lower tax rates than the U.S. federal rate. Despite this, the increase in our effective tax rate of 19% primarily resulted from the impact of U.S. tax reform including the one-time transition tax on such earnings of certain foreign subsidiaries that were previously tax-deferred and the re-measurement of deferred tax assets and liabilities to the new U.S. federal corporate tax rate of 21%. Our historical provision for income taxes is not necessarily reflective of our future results of operations.
Taxable income in any jurisdiction is dependent upon acceptance of our operational practices and intercompany transfer pricing by local tax authorities as being on an arm’s length basis. Due to inconsistencies in application of the arm’s length standard among taxing authorities, as well as lack of adequate treaty-based protection, transfer pricing challenges by tax authorities could, if successful, substantially increase our income tax expense.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015
Revenue
Revenue and the related changes during the year ended December 31, 2016 and 2015 were as follows:
 
 
Year Ended December 31,
 
Change in
 
2016
 
2015
 
$
 
%
 
(dollars in thousands)
Revenue
$
478,412

 
$
239,056

 
$
239,356

 
100
%

 Revenue increased by $239.4 million, or 100%, to $478.4 million in the year ended December 31, 2016 from $239.1 million in the year ended December 31, 2015. The increase was primarily due to a $157.4 million increase in revenue from sales of products within our 100 Gbps product family and an $83.6 million increase in revenue attributable to the introduction

48



of new products in our 200 Gbps and 400 Gbps product families.  These increases in revenue were partially offset by a $1.6 million decrease in revenue from sales of products within our 40 Gbps product family, which reached end-of-life in the fourth quarter of 2015, as customers migrated to new product family offerings.
Our product sales based on the geographic region of our customers’ delivery location, which in certain instances may be the location of a contract manufacturer rather than our end customer, are as follows:

 
 
Year Ended
 
As a % of
 
Year Ended
 
As a % of
 
Change in
 
December 31, 2016
 
Total Revenue
 
December 31, 2015
 
Total Revenue
 
$
 
%
 
(dollars in thousands)
Americas
$
92,452

 
19
%
 
$
46,624

 
20
%
 
$
45,828

 
98
%
EMEA
147,548

 
31
%
 
103,150

 
43
%
 
44,398

 
43
%
APAC
238,412

 
50
%
 
89,282

 
37
%
 
149,130

 
167
%
Total revenue
$
478,412

 
100
%
 
$
239,056

 
100
%
 
$
239,356

 
100
%

Americas
Revenue from product sales to customers with ship-to locations in the Americas increased by $45.8 million, or 98%, to $92.5 million in the year ended December 31, 2016 from $46.6 million in the year ended December 31, 2015. The increase was primarily due to a $24.8 million increase in such sales of products within our 100 Gbps product family and a $21.0 million increase in such sales due to the introduction of new products in our 400 Gbps product family.
Europe, the Middle East and Africa
Revenue from product sales to customers with ship-to locations in Europe, the Middle East and Africa, or EMEA, increased by $44.4 million, or 43%, to $147.5 million in the year ended December 31, 2016 from $103.2 million in the year ended December 31, 2015. The increase was primarily due to a $38.4 million increase in such sales of products within our 100 Gbps product family and a $7.6 million increase in such sales due to the introduction of new products in our 400 Gbps product family. These increases in revenue were partially offset by a $1.6 million decrease in revenue from such sales of products within our 40 Gbps product family, which reached end-of-life in the fourth quarter of 2015, as customers migrated to new product family offerings.
Asia Pacific
Revenue from product sales to customers with ship-to locations in the Asia Pacific region, or APAC, increased by $149.1 million, or 167%, to $238.4 million in the year ended December 31, 2016 from $89.3 million in the year ended December 31, 2015. The increase was primarily due to a $94.1 million increase in such sales of products within our 100 Gbps product family and a $55.0 million increase in such sales due to the introduction of new products in our 400 Gbps product family.
Cost of Revenue and Gross Profit
 
 
Year Ended December 31,
 
Change in
 
2016
 
2015
 
$
 
%
 
(dollars in thousands)
Cost of revenue
$
257,425

 
$
145,350

 
$
112,075

 
77
%
Gross profit percentage
46.2
%
 
39.2
%
 

 

 
Cost of revenue increased $112.1 million, or 77%, to $257.4 million in the year ended December 31, 2016 from $145.4 million in the year ended December 31, 2015. The increase was due to the increased volume of products sold within our 100 Gbps and 400 Gbps product families.

49



Our gross profit percentage increased to 46.2% in the year ended December 31, 2016 compared to 39.2% in the year ended December 31, 2015. The increase was due to the favorable effects of product mix within our 100 Gbps and 400 Gbps product families to products which contain more of our vertically integrated silicon technology, as compared to the prior year. Our gross profit percentage also benefited from our transition of our manufacturing operations to contract manufacturers in lower-cost regions.
Research and Development
 
 
Year Ended December 31,
 
Change in
 
2016
 
2015
 
$
 
%
 
(dollars in thousands)
Research and development
$
75,696

 
$
38,645

 
$
37,051

 
96
%
 
Research and development expense increased $37.1 million, or 96%, to $75.7 million in the year ended December 31, 2016 from $38.6 million in the year ended December 31, 2015, due to a $24.4 million increase in personnel-related and other costs, as well as a $7.4 million increase in prototype development costs, and a $5.3 million increase in outsourced development costs, each to support our new product development initiatives.  The increase in personnel-related costs was primarily attributable to an $11.8 million increase in stock-based compensation expense mainly attributable to RSUs that included a performance condition which was met upon completion of our IPO.
Sales, General and Administrative
 
 
Year Ended December 31,
 
Change in
 
2016
 
2015
 
$
 
%
 
(dollars in thousands)
Sales, general and administrative
$
27,676

 
$
13,124

 
$
14,552

 
111
%
 
Sales, general and administrative expenses increased $14.6 million, or 111%, to $27.7 million in the year ended December 31, 2016 from $13.1 million in the year ended December 31, 2015, due to a $13.7 million increase in personnel-related and other costs to support our growth, and a $0.9 million increase in professional services expense.  The increase in personnel-related costs was primarily attributable to a $6.6 million increase in stock-based compensation expense mainly attributable to RSUs that included a performance condition which was met upon completion of our IPO.
Other Expense, Net
 
 
Year Ended December 31,
 
Change in
 
2016
 
2015
 
$
 
%
 
(dollars in thousands)
Total other expense, net
$
(2,969
)
 
$
(2,132
)
 
$
(837
)
 
39
%
 
Total other expense, net, increased $0.8 million, or 39%, to $3.0 million during the year ended December 31, 2016 from $2.1 million in the year ended December 31, 2015.  During the year ended December 31, 2016, the expense associated with the revaluation of our preferred stock warrant liability was $3.4 million, an increase $1.2 million, as compared to $2.2 million during the year ended December 31, 2015. This increase in expense was partially offset by a $0.6 million increase in interest income resulting from our increased cash and investment balances.
(Benefit) Provision for Income Taxes
 

50



 
Year Ended December 31,
 
Change in
 
2016
 
2015
 
$
 
%
 
(dollars in thousands)
(Benefit) provision for income taxes
$
(16,956
)
 
$
(715
)
 
$
(16,241
)
 
2,271
 %
Effective tax rate
(15
)%
 
(2
)%
 

 
(13
)%
Benefit for income taxes for the year ended December 31, 2016 was $17.0 million compared to $0.7 million for the year ended December 31, 2015. The decrease in our effective tax rate of 13% primarily resulted from a decrease in the foreign rate differential due to the jurisdictional mix of profits under our corporate structure and the recognition of excess tax benefits from the taxable compensation on share-based awards recognized in 2016. Our historical provision for income taxes is not necessarily reflective of our future results of operations.
Taxable income in any jurisdiction is dependent upon acceptance of our operational practices and intercompany transfer pricing by local tax authorities as being on an arm’s length basis. Due to inconsistencies in application of the arm’s length standard among taxing authorities, as well as lack of adequate treaty-based protection, transfer pricing challenges by tax authorities could, if successful, substantially increase our income tax expense.
Liquidity and Capital Resources
 
 
Year Ended December 31,
 
2017
 
2016
 
2015
 
(in thousands)
Cash and cash equivalents
$
67,495

 
$
206,402

 
$
27,610

Marketable securities
297,115

 
104,004

 

Working capital
361,621

 
381,707

 
55,147

Net cash provided by operating activities
63,523

 
101,214

 
22,450

Net cash used in investing activities
(207,907
)
 
(121,491
)
 
(12,116
)
Net cash provided by (used in) financing activities
5,477

 
199,069

 
(3,847
)
 
Since 2014, we have funded our operations primarily through cash generated from operations. In May 2016, we completed our IPO in which we received aggregate proceeds of $97.8 million, net of underwriters’ discounts and commissions, before deducting offering costs of approximately $4.3 million. In October 2016, we completed a follow-on offering in which we received aggregate proceeds of $116.8 million, net of underwriters’ discounts and commissions, before deducting offering costs of approximately $1.2 million. As of December 31, 2017, we had cash and cash equivalents totaling $67.5 million, marketable securities of $297.1 million and accounts receivable of $86.6 million.  
 We believe our existing cash balances and anticipated cash flow from future operations will be sufficient to meet our working capital and capital expenditure needs for at least the next 12 months and the foreseeable future. Our future capital requirements may vary materially from those currently planned and will depend on many factors, including our rate of revenue growth, the timing and extent of spending on research and development efforts and other business initiatives, purchases of capital equipment to support our growth, the expansion of sales and marketing activities, any expansion of our business through acquisitions of or investments in complementary products, technologies or businesses, the use of working capital to purchase additional inventory, the timing of new product introductions, market acceptance of our products and overall economic conditions. To the extent that current and anticipated future sources of liquidity are insufficient to fund our future business activities and requirements, we may be required to seek additional equity or debt financing. In the event additional financing is required from outside sources, we may not be able to raise it on terms acceptable to us or at all.
Operating Activities
Net cash provided by operating activities consists primarily of net income adjusted for certain non-cash items, including depreciation expense, stock-based compensation expense, loss on the change in fair value of our preferred stock warrant liability, deferred income taxes and other non-cash charges, net, as well as the effect of changes in working capital.
Net cash provided by operating activities was $63.5 million in the year ended December 31, 2017, as compared to $101.2 million in the year ended December 31, 2016. The decrease of $37.7 million was primarily due to a $93.1 million decrease in net income and a $3.4 million decrease in non-cash expense items primarily consisting of stock-based

51



compensation, depreciation expense, deferred income taxes and the change in fair value of our preferred stock warrant liability, which was partially offset by a $58.8 million increase in cash related to changes in operating assets and liabilities. Changes in cash flows related to operating assets and liabilities primarily consisted of an $88.4 million increase in cash due to the timing of accounts receivable collections in the fourth quarter of 2017, a $21.0 million increase in cash due to the timing of payments of income taxes, a $5.8 million increase in cash due to deferred revenue related to the timing of shipments at the end of 2017 and a $3.8 million increase in cash due to the timing of prepaids and other assets. These increases were partially offset by a $33.1 million decrease in cash due to the timing of payments associated with our accounts payable and accrued liabilities, and a $26.8 million decrease in cash due to an increased inventory balance as compared to December 31, 2016.
Net cash provided by operating activities was $101.2 million in the year ended December 31, 2016, as compared to $22.5 million in the year ended December 31, 2015. The increase of $78.8 million was primarily due to a $91.1 million increase in net income, a $24.6 million increase in non-cash expense items primarily consisting of stock-based compensation, depreciation expense, deferred income taxes and the change in fair value of our preferred stock warrant liability, and a $36.9 million decrease in cash related to changes in operating assets and liabilities. Changes in cash flows related to operating assets and liabilities primarily consisted of a $43.7 million decrease in cash due to the timing of accounts receivable collections in the fourth quarter of 2016, a $16.0 million decrease in prepaid expense and other assets, a $10.5 million decrease in deferred revenue due to the timing of shipments at the end of 2016, and a $1.6 million decrease related to restricted cash deposits held in escrow to fund future tenant improvements, partially offset by a $19.0 million increase in cash due to the timing of payments associated with our accounts payable and accrued liabilities, a $9.2 million increase in cash due to a decreased inventory balance as compared to December 31, 2015, and a $6.0 million increase related to deferred product costs due to the timing of shipments at the end of 2016.
Investing Activities
Our investing activities have consisted primarily of purchases, sales and maturities of marketable securities and purchases of lab and computer equipment and software to support the development of new products and increase our manufacturing capacity to meet customer demand for existing products. In addition, our investing activities include expansion of, and improvements to, our leased facilities. As our business expands, we expect that we will continue to invest in these areas.
Net cash used in investing activities in the year ended December 31, 2017 was $207.9 million, as compared to $121.5 million in the year ended December 31, 2016. The increase was primarily due to the investment of an additional $89.7 million, net, into marketable securities during the year ended December 31, 2017, partially offset by a $3.1 million decrease in property and equipment purchases.
Net cash used in investing activities in the year ended December 31, 2016 was $121.5 million, as compared to $12.1 million in the year ended December 31, 2015. The increase was primarily due to the investment of $118.7 million of our IPO and follow-on offering proceeds into marketable securities, as well as an increase of $5.1 million in purchases of lab equipment to support the development and manufacturing phases of our product life cycles.  These uses of cash were partially offset by $14.5 million of cash generated from the sale and maturity of marketable securities.
Financing Activities
Our financing activities have consisted primarily of proceeds received from the completion of our IPO and follow-on offering, net of issuance costs and, in prior years, repayments of short- and long-term borrowings. In 2016, our financing activities also included payment of taxes on behalf of our employees related to the net share settlement of RSUs. During the fourth quarter of 2016, we began requiring our employees to sell a portion of the shares they receive upon the vesting of RSUs in order to cover any required tax withholdings, referred to as sell-to-cover, rather than our previous approach of net share settlement. The transition was completed in November 2016. As a result, we do not expect tax withholdings payments related to the net share settlement of RSUs to be a material use of cash in future periods.
Net cash provided by financing activities during the year ended December 31, 2017 was $5.5 million, as compared to $199.1 million during the year ended December 31, 2016. During the year ended December 31, 2017, cash provided by financing activities was mainly attributable to $5.7 million of proceeds from the issuance of common stock under stock-based compensation plans. During the year ended December 31, 2016, cash provided by financing activities was mainly attributable to the completion of our IPO and follow-on offerings in which we received aggregate proceeds of $214.6 million, net of underwriters’ discounts and commissions, before deduction of offering expenses of approximately $5.5 million. In addition, during the year ended December 31, 2016, we paid $14.6 million for employee withholding tax obligations related to the distribution of vested RSUs on a net settlement basis. During the year ended December 31, 2015, the net cash used in financing activities of $3.8 million was primarily for the advanced repayment of principal on our long-term debt obligation.

52




 
Contractual Obligations and Commitments
Our principal commitments consist of purchase obligations, operating lease payments for our facilities and income taxes payable as a result of tax legislation enacted in December 2017. The following table summarizes these contractual obligations at December 31, 2017. Future events could cause actual payments to differ from these estimates.
 
 
Payments due by period
 
Total
 
Less than 1 Year
 
1-3 Years
 
3-5 Years
 
More Than 
5 Years
 
(in thousands)
Operating leases (1)
$
21,092

 
$
3,371

 
$
6,641

 
$
5,687

 
$
5,393

Purchase obligations (2)
62,800

 
62,800

 

 

 

Income taxes payable (3)
21,034

 

 
3,656

 
3,656

 
13,722

Unrecognized tax benefits (4)
2,286

 

 

 

 

Total
$
107,212

 
$
66,171

 
$
10,297

 
$
9,343

 
$
19,115

 
(1)
Our principal facilities are located in Maynard, Massachusetts and Holmdel, New Jersey and are leased under non-cancelable operating leases that expire in February 2025, with respect to the Massachusetts facility, and January 2022, with respect to the New Jersey facility. We also lease office space in various locations with expiration dates between 2018 and 2021. Several of our lease agreements include leasehold improvement incentives, escalating lease payments, renewal provisions and other provisions which require us to pay taxes, insurance, maintenance costs or defined rent increases. All of our facility leases are accounted for as operating leases. Rent expense is recorded over the lease terms on a straight-line basis. Rent expense for the years ended December 31, 2017, 2016 and 2015 was $5.2 million, $1.3 million, and $0.9 million, respectively.  
Future minimum lease payments due under these non-cancelable lease agreements as of December 31, 2017, are as follows (in thousands):
 
Amounts
2018
$
3,371

2019
3,306

2020
3,335

2021
3,245

2022
2,442

Thereafter
5,393

Total
$
21,092

As of December 31, 2017, we were committed to expend approximately $1.1 million for additional construction build-out at the Massachusetts facility.
 
(2)
Our purchase obligations primarily consist of outstanding purchase orders with our contract manufacturers for inventory and other third parties for the manufacturing of our wafers. Our relationships with these vendors typically allow for the cancellation of outstanding purchase orders, but require payments of all expenses incurred through the date of cancellation. Other obligations include future non-inventory purchases and commitments related to future fixed asset purchases.

(3)
Income taxes payable relates to taxes owed as a result of the one-time transition tax on earnings of certain foreign subsidiaries that were previously tax-deferred upon enactment of the U.S. Tax Cuts and Jobs Act, or the Act, in December 2017. The Act allows the tax liability to be paid on an installment basis over eight years.

(4)
We had $4.5 million of uncertain tax positions as of December 31, 2017. Included in the balance of unrecognized tax benefits as of December 31, 2017 are $2.3 million of tax benefits that, if recognized, would impact the effective tax rate, which have been accrued for as a long-term liability on our consolidated balance sheet. We are not able to provide reasonably reliable estimates of future payments relating to these obligations.
Letters of Credit

53



As of December 31, 2017, we had outstanding letters of credit of $0.8 million issued to cover the security deposits on the leases of the Maynard, Massachusetts, and the Holmdel, New Jersey facilities.
Off-Balance Sheet Arrangements
As of December 31, 2017, we did not have any off-balance sheet arrangements, as defined in Item 303(a)(4)(ii) of Regulation S-K.
Critical Accounting Policies and Significant Judgments and Estimates
Our management’s discussion and analysis of financial condition and results of operations is based on our consolidated financial statements which have been prepared in accordance with accounting principles generally accepted in the United States of America. In preparing our consolidated financial statements, we make estimates, assumptions and judgments that can have a significant effect on our reported revenue, results of operations and net income, as well as on the value of certain assets and liabilities on our balance sheet during and as of the reporting periods. These estimates, assumptions and judgments are necessary because future events and their effects on our results and the value of our assets cannot be determined with certainty, and are made based on our historical experience and on other assumptions that we believe to be reasonable under the circumstances. These estimates may change as new events occur or additional information is obtained, and we may periodically be faced with uncertainties, the outcomes of which are not within our control and may not be known for a prolonged period of time. As the use of estimates is inherent in the financial reporting process, actual results could differ from those estimates.
Revenue Recognition
Our products are fully functional at the time of shipment and do not require production, modification or customization. We recognize revenue from product sales when persuasive evidence of an arrangement exists, delivery has occurred, the fee is fixed or determinable and collection is reasonably assured. Our fee is considered fixed or determinable at the execution of an agreement, based on specific products and quantities to be delivered at specified prices, which is evidenced by a customer purchase order or other persuasive evidence of an arrangement. Our agreements with our customers do not include rights of return. Product revenue is recognized upon shipment of product to customers except for instances where title and risk of loss pass to the customer upon delivery or acceptance, where revenue is recognized upon the occurrence of delivery or acceptance, as applicable.
A limited number of revenue arrangements with our customers include more than one element and require the application of Accounting Standards Codification, or ASC, 605-25, Revenue Recognition—Multiple Element Arrangements. Arrangement consideration is allocated to each element with standalone value based on the relative selling prices of all of the elements in the arrangement using the fair value hierarchy. We determine the relative selling price of elements based on prices charged for standalone products, when sufficiently concentrated, and third-party evidence of similar elements, or, in the absence of these sources of evidence, based on management’s best estimate of selling price. Revenue recognized from multiple-element arrangements accounted for less than 1% of our total revenue during the years ended December 31, 2017, 2016 and 2015.
Inventories
Inventories mainly consist of raw materials and finished goods which are purchased from contract manufacturers and other suppliers. Inventories are stated at the lower of cost or net realizable value on a first-in, first-out basis. Our assessment of net realizable value requires the use of estimates, including an assessment of excess or obsolete inventories. We determine excess and obsolete inventories based on an estimate of the future demand for our products within a specified time horizon, generally 12 months. The estimates used for future demand are also used for near-term capacity planning and inventory purchases, and are consistent with revenue forecast assumptions. If our demand forecast is greater than actual demand, we may be required to record an excess inventory charge reflected in cost of goods sold, which would decrease gross profit. Any excess or obsolete inventory write-downs taken establish a new cost basis for the underlying inventory and cannot be reversed if there are subsequent increases in our demand forecast. If we are later able to sell such inventory, any related reserves would be reversed in the period of sale.
Income Taxes
We utilize the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are determined based on the cumulative difference between the financial statement carrying amounts and tax basis of assets and liabilities using enacted tax rates in effect for years in which temporary differences are expected to reverse. We

54



provide a valuation allowance when it is not more likely than not that deferred tax assets will be realized. We recognize the benefit of an uncertain tax position that has been taken or that we expect to take on income tax returns if such tax position is more likely than not to be sustained.
We follow the authoritative guidance regarding accounting for uncertainty in income taxes, which prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. These unrecognized tax benefits relate primarily to issues related to the timing of certain income and deductions for federal income tax purposes. We apply a variety of methodologies in making these estimates, including advice and studies performed by independent subject matter experts, evaluation of public actions taken by the IRS and other taxing authorities, as well as our own industry experience. We provide estimates for unrecognized tax benefits which may be subject to material adjustments until matters are resolved with taxing authorities or statutes expire. If our estimates are not representative of actual outcomes, our results of operations can be materially affected.
We must assess the likelihood that some portion or all of our deferred tax assets will be recovered from future taxable income within the respective jurisdictions, and to the extent we believe that recovery does not meet the “more-likely-than-not” standard, we must establish a valuation allowance. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Some sources of future taxable income are objective while others involve subjective assessments. Assessing subjective income sources involves a review of our capability and willingness to implement certain tax planning strategies that will generate future taxable income and an assessment of our experience in forecasting future taxable income. Management’s judgment is required in determining our provision for income taxes, our deferred tax assets and liabilities and any valuation allowance recorded against our net deferred tax assets. In evaluating the need for a full or partial valuation allowance, all positive and negative evidence must be considered, and the weight of that evidence, including our forecasts of taxable income over the applicable carryforward periods, our current financial performance, our market environment and other factors.
As of each reporting date, our management considers new evidence, both positive and negative, that could impact its view with regard to future realization of deferred tax assets. If we determine that our assessments on all or a portion of the deferred tax assets will change in a future period, we will record material adjustments to the provision for income taxes in that period. Based on the available objective evidence, at December 31, 2017, management determined that sufficient positive evidence exists to conclude that it is more likely than not that deferred taxes of $41.9 million are realizable, and therefore, adjusted the valuation allowance accordingly to $1.4 million.
The U.S. Tax Cuts and Jobs Act, or the Act, was enacted on December 22, 2017. Among other changes, this legislation: (1) reduces the U.S. federal corporate tax rate from 35% to 21%; (2) requires companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously tax-deferred; (3) creates new taxes on certain foreign sourced earnings; (4) provides a general elimination of U.S. federal income taxes on dividends from foreign subsidiaries; (5) includes a new provision designed to currently tax certain global intangible low-taxed income, or GILTI, of controlled foreign corporations, which allows for the possibility of using foreign tax credits, or FTCs, and a deduction of up to 50% to reduce this income tax liability (subject to some limitations); (6) provides limitations on the use of FTCs to reduce the U.S. income tax liability; and (7) provides limitations on net operating losses generated in the taxable years beginning after December 31, 2017, to 80% of taxable income. Accounting Standard Codification, or ASC, 740 requires filers to record the effect of tax law changes in the period enacted. However, the SEC issued Staff Accounting Bulletin No. 118, or SAB 118, that permits filers to record provisional amounts during a measurement period ending no later than one year from the date of the legislation’s enactment. As of December 31, 2017, we have not completed our accounting for the tax effects of enactment of this legislation; however, we have made a reasonable estimate of the effects on our existing deferred tax balances, the one-time transition tax and provisional state taxes on future repatriations. For the items for which we were able to determine a reasonable estimate, we recognized a provisional amount of $31.4 million under SAB 118, which is included as a component of the income tax provision.
As a result of the “deemed distributions” under the Act, the impact of GILTI on our future foreign earnings and the lack of certain foreign governments’ withholding tax imposed on dividends, we no longer take the position that these foreign earnings are permanently reinvested. For all other foreign operating subsidiaries, we continue to take the position that earnings are permanently reinvested.
Stock-Based Compensation
We recognize compensation expense for equity awards based on the grant date fair value of the award.  For equity awards that vest based on a service condition, which constitute the majority of our outstanding equity awards, stock-based compensation expense is recognized on a straight-line basis over the requisite service period.  When an equity award contains

55



both performance and service conditions, we recognize stock-based compensation expense utilizing the accelerated attribution method.  
We use the Black-Scholes option pricing model to measure the fair value of our option awards when they are granted. Prior to our IPO, we estimated the value of common stock at the grant date with the help of an independent third-party service provider. We use the daily historical volatility of companies we consider to be our peers. To determine our peer companies, we used the following criteria: optical telecommunications companies; similar histories and relatively comparable financial leverage; sufficient public company trading history; and in similar businesses and geographical markets. We used the peers’ stock price volatility over the expected term of our granted options to calculate the expected volatility. The expected term of employee option awards is determined using the average midpoint between vesting and the contractual term for outstanding awards, or “the simplified method,” because we do not yet have a sufficient history of option exercises. We determine the risk-free interest rate on the grant date of the award based on the rate of U.S. Treasury securities with maturities approximately equal to the estimated expected term of the awards. We have not paid dividends and do not anticipate paying a cash dividend in the foreseeable future and, accordingly, use an expected dividend yield of zero.
The following table summarizes the assumptions, other than fair value of our common stock, relating to our stock options granted in the years ended December 31, 2016 and 2015. No stock options were granted in the year ended December 31, 2017.
 
Year Ended December 31,
 
2016
 
2015
Risk-free interest rate
1.2% - 1.6%
 
1.6% - 1.9%
Expected dividend yield
None
 
None
Expected volatility
59.5% - 60.0%
 
59.4% - 70.8%
Expected term (in years)
6.3
 
6.3 - 6.5
    
In addition to the assumptions used in the Black-Scholes option-pricing model, prior to the adoption of Accounting Standards Update, or ASU, 2016-09, we estimated a forfeiture rate to calculate the stock-based compensation expense for our awards. Our forfeiture rate was based on an analysis of our actual forfeitures. Changes in an estimated forfeiture rate can have a significant effect on stock-based compensation expense as the cumulative effect of adjusting the rate is recognized in the period the forfeiture estimate is changed. However, upon the adoption of ASU 2016-09 during the second quarter of 2016, we no longer estimate a forfeiture rate. Rather, we account for forfeitures as they occur.
We will continue to use judgment in evaluating the expected volatility and expected term utilized in our stock-based compensation expense calculations on a prospective basis. As we continue to accumulate additional data related to our common stock, we may refine our estimates of expected volatility and expected term, which could materially affect our future stock-based compensation expense to the extent we grant future stock option awards.
Stock-based compensation is measured using the fair value of our common stock on the grant date for time-vested RSUs. During the year ended December 31, 2016, we granted 200,000 RSUs to executives which had a market condition, or market-based RSUs. These market-based RSUs vested upon achievement of specific stock price targets which were achieved during 2016. During the year ended December 31, 2017, we granted 461,000 RSUs to executives which have a market condition and a performance condition in addition to a service condition, or PRSUs.  The number of PRSUs that are subject to the service condition is determined based on the achievement of a stock price objective, which is the market condition, and a revenue growth objective, which is the performance condition, over a two-year period running from January 1, 2017 through December 31, 2018.
Determining the amount of stock-based compensation to be recorded requires us to develop estimates to be used in calculating the grant-date fair value of the market-based RSUs and PRSUs. We calculate the grant-date fair value of market-based RSUs and PRSUs using the Monte Carlo simulation valuation model. The Monte Carlo simulation model utilizes multiple input variables that determine the probability of satisfying the market or performance conditions stipulated in the award grant and calculates the fair market value for the market-based RSUs and PRSUs granted. The Monte Carlo simulation model also uses stock price volatility and other variables to estimate the probability of satisfying the market or performance conditions, including the possibility that the market condition may not be satisfied, and the resulting fair value of the award. We use the historical volatility of multiple peer companies to determine volatility input in the Monte Carlo simulation model. For the PRSUs, we also estimate the fair value of the PRSUs using management’s best estimate of whether it is probable or not probable that the revenue growth objective will be satisfied using the most currently available projections of future revenue performance, which is reassessed at each reporting period.

56



The expense related to the market-based RSUs was fully recognized in the year ended December 31, 2016 when the market conditions were achieved. We recognize the expense related to the PRSUs on an accelerated basis over the vesting period of four years. See Note 9, Stock Compensation Plans, of the Notes to Consolidated Financial Statements contained in Item 8 of this Annual Report on Form 10-K for more information related to these market-based RSUs and PRSUs.
Recent Accounting Pronouncements
Refer to Note 3, Summary of Significant Accounting Policies of the Notes to Consolidated Financial Statements contained in Part II, Item 8 of this Annual Report on Form 10-K for analysis of recent accounting pronouncements that are applicable to our business.
Item 7A.
Quantitative and Qualitative Disclosures about Market Risks
Market risk is the risk of loss to future earnings, values or future cash flows that may result from changes in the price of a financial instrument. The value of a financial instrument may change as a result of changes in interest rates, exchange rates, commodity prices, equity prices and other market changes. We are exposed to market risks in the ordinary course of our business. These risks primarily include interest rate and foreign currency risks as follows:
Interest Rate Sensitivity
Our exposure to changes in interest rates relates primarily to interest earned on and the market value of our cash, cash equivalents and marketable securities. Our cash, cash equivalents and marketable securities consist of bank deposit accounts, money market funds, repurchase agreements, commercial paper, certificates of deposit, asset-backed securities, U.S. government securities and corporate debt securities. Our securities with fixed interest rates may have their market value adversely impacted by a rise in interest rates. As a result, we may suffer losses in principal if we are forced to sell securities that decline in market value due to changes in interest rates. However, because we classify our investments in debt securities as available‑for‑sale, no gains or losses are recognized in the consolidated income statements unless such securities are sold prior to maturity or incur an other-than-temporary decline in fair value. A hypothetical 100 basis point increase in interest rates would not have resulted in a material change to our financial position or results of operations as of and for the year ended December 31, 2017. We do not believe that we have a material exposure to interest rate risk as our investment policy specifies credit quality standards for our investments and limits the amount of credit exposure from any single issue, issuer or type of investment.
Foreign Currency Exchange Risk
We are exposed to market risk related to changes in foreign currency exchange rates. Our operations outside of the United States incur a portion of their operating expenses in foreign currencies, principally the Euro, but these expenses are immaterial compared to our overall expenses. To date, the majority of our product sales and inventory purchases have been denominated in U.S. dollars. In addition, the functional currency of all of our entities is the U.S. dollar.  Accordingly, we have limited exposure to foreign currency exchange rates. During the years ended December 31, 2017 and December 31, 2016, we recorded foreign currency transaction losses of $0.2 million and $0.1 million, respectively. During the year ended December 31, 2015, we recorded foreign currency transaction gains of $0.2 million. These foreign currency transaction gains and losses have been recorded as a component of “other (expense) income” in our consolidated income statements. We believe that a 10% change in the exchange rate between the U.S. dollar and Euro would not materially impact our operating results or financial position. To date, we have not entered into any foreign currency exchange contracts. In future periods, we may hedge certain significant transactions denominated in currencies other than the U.S. dollar as we expand our international operations.
Inflation Risk
We do not believe that inflation has had a material effect on our business. However, if global demand for the base materials utilized in our suppliers’ components were to significantly increase for the components we purchase from our suppliers to manufacture our products, our costs could become subject to significant inflationary pressures, and we may not be able to fully offset such higher costs through price increases. Our inability or failure to do so could harm our business, operating results and financial condition.

57



Item 8.
Financial Statements and Supplementary Data

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
 

58



REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
 
To the Stockholders and the Board of Directors of
Acacia Communications, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Acacia Communications, Inc. and subsidiaries (the “Company”) as of December 31, 2017 and 2016, and the related consolidated income statements, statements of comprehensive income, redeemable convertible preferred stock and stockholders’ (deficit) equity, and cash flows, for each of the three years in the period ended December 31, 2017, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and 2016, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2017, in conformity with accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 22, 2018, expressed an unqualified opinion on the Company’s internal control over financial reporting.

Basis for Opinion    

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

/s/ Deloitte & Touche LLP

Boston, Massachusetts
February 22, 2018

We have served as the Company’s auditor since 2014.



59



ACACIA COMMUNICATIONS, INC.
CONSOLIDATED BALANCE SHEETS
(in thousands, except per share amounts)
 
 
December 31, 2017
 
December 31, 2016
ASSETS
 

 
 

Current assets:
 

 
 

Cash and cash equivalents
$
67,495

 
$
206,402

Marketable securities
211,933

 
104,004

Accounts receivable
86,602

 
108,127

Inventory
62,232

 
31,681

Prepaid expenses and other current assets
18,817

 
12,076

Deferred product costs
168

 
85

Total current assets
447,247

 
462,375

Marketable securities - long term
85,182



Restricted cash

 
1,630

Property and equipment, net
28,175

 
25,124

Deferred tax asset
41,901

 
23,533

Other assets
8,745

 
4,274

Total assets
$
611,250

 
$
516,936

 
 
 
 
LIABILITIES AND STOCKHOLDERS' EQUITY
 

 
 

Current liabilities:
 

 
 

Accounts payable
$
47,819

 
$
49,430

Accrued liabilities
37,234

 
29,863

Deferred revenue
573

 
1,375

Total current liabilities
85,626

 
80,668

Income taxes payable
21,034

 

Other long-term liabilities
2,540

 
1,473

Total liabilities
109,200

 
82,141

 
 
 
 
Commitments and contingencies (Note 11)


 


 
 
 
 
Stockholders' equity:
 

 
 

Preferred stock, $0.0001 par value; 5,000 shares authorized; none issued and outstanding at December 31, 2017 and 2016

 

Common stock, $0.0001 par value; 150,000 shares authorized at December 31, 2017 and 2016; 39,606 and 37,998 shares issued and outstanding at December 31, 2017 and 2016, respectively
4

 
4

Additional paid-in capital
324,944

 
295,893

Accumulated other comprehensive loss
(320
)
 
(16
)
Retained earnings
177,422

 
138,914

Total stockholders' equity
502,050

 
434,795

Total liabilities and stockholders' equity
$
611,250

 
$
516,936


The accompanying notes are an integral part of these consolidated financial statements.

60



ACACIA COMMUNICATIONS, INC.
CONSOLIDATED INCOME STATEMENTS
(in thousands, except per share amounts)
 
 
Year Ended December 31,
 
2017
 
2016
 
2015
Revenue
$
385,166

 
$
478,412

 
$
239,056

Cost of revenue
217,326

 
257,425

 
145,350

Gross profit
167,840

 
220,987

 
93,706

Operating expenses:
 

 
 

 
 

Research and development
92,027

 
75,696

 
38,645

Sales, general and administrative
38,807

 
27,676

 
13,124

(Gain) loss on disposal of property and equipment
(47
)
 
25

 

Total operating expenses
130,787

 
103,397

 
51,769

Income from operations
37,053

 
117,590

 
41,937

Other income (expense), net:
 

 
 

 
 

Interest income (expense), net
3,389

 
453

 
(135
)
Change in fair value of preferred stock warrant liability

 
(3,361
)
 
(2,154
)
Other (expense) income
(139
)
 
(61
)
 
157

Total other income (expense), net
3,250

 
(2,969
)
 
(2,132
)
Income before provision (benefit) for income taxes
40,303

 
114,621

 
39,805

Provision (benefit) for income taxes
1,795

 
(16,956
)
 
(715
)
Net income
38,508

 
131,577

 
40,520

Accretion of redeemable convertible preferred stock

 
(1,722
)
 
(4,353
)
Undistributed earnings attributable to participating securities

 
(34,571
)
 
(28,570
)
Net income attributable to common stockholders - basic and diluted
$
38,508

 
$
95,284

 
$
7,597

Net income per share attributable to common stockholders:
 

 
 

 
 

Basic
$
0.99

 
$
3.77

 
$
1.18

Diluted
$
0.92

 
$
3.22

 
$
0.91

Weighted-average shares used to compute net income per share attributable
   to common stockholders: