Jennifer Moyer
Analyst · Bank of America
Thank you, Steve, and to everyone participating on this afternoon's call.
I'll start with a summary of our fourth quarter results, and then provide guidance for the first quarter and full year 2016 before opening the call to questions.
We are pleased with our fourth quarter results, which exceeded all of the guidance metrics we provided in our third quarter conference call. Total revenue for the fourth quarter increased 25% over the fourth quarter of the prior year to $56.9 million. SaaS and license revenue also grew 25% over the same period to $38.7 million. The vast majority of the growth in SaaS and license revenue was from our core security business, which is comprised of recurring monthly fees paid by service providers for both platform access and for the services they provide to their customers and to a lesser extent, licenses to our intellectual property paid on a recurring monthly basis.
We also saw healthy SaaS revenue growth, while off a small base, from non-security markets like energy, HVAC and remote access management. Total revenue from these businesses, which we report on our Other segment, more than doubled over the fourth quarter of the prior year.
Our SaaS and license revenue visibility remains healthy, as evidenced by our 93% renewal rate in the fourth quarter of 2015, consistent with the prior year. This growth in visibility contributed additional economies of scale. Our SaaS and license revenue gross margin increased to 83% during the fourth quarter, up 300 basis points over the prior year. Hardware and other revenue of $18.2 million in the fourth quarter increased 24% over the same period of the prior year, resulting from higher sales volumes in those product categories. Video camera sales in our core business contributed approximately 45% of the overall increase and hardware revenue in our Other segment contributed approximately 37%.
Hardware revenue in the quarter substantially exceeded our expectations although, as we've stated in the past, hardware revenues can be unpredictable from quarter-to-quarter, and it should be noted that not all of the hardware sold in the quarter has yet to be installed by our service providers.
Hardware and other gross margin increased to 26% during the fourth quarter, a 290 basis point increase over the same period of the prior year. Hardware and other revenue gross margins generally fluctuate from quarter-to-quarter based on product mix. So as we mentioned last quarter, in 2015, we implemented changes to our supply chain logistics, which reduced the carrying cost of some of our products in a persistent basis. Our overall strategy is to continue to add third-party devices to the ecosystem to provide the most complete and seamless smart home experience for our customers. Our strategy is not to maximize profitability in a hardware revenue, and we expect some fluctuation in hardware margins in 2016 as we bring new products to market and enable a wider range of devices.
The breadth of our hardware ecosystem differentiates the Alarm.com platform and delivers more value to our service provider partners and end-user customers. These devices include both proprietary hardware that we design and manufacture like the Alarm.com smart thermostat as well as hardware produced by third parties. Total gross margin increased to 65% for the fourth quarter, a 330 basis point increase over the same period of the prior year.
Turning to operating expenses. We continue to invest heavily in research and development to give our service providers a growing advantage in the market as well as to support future growth in adjacent areas. We also continue to invest in the sales and support infrastructure necessary to expand our international operations.
Total sales and marketing expenses incurred during the quarter were $7.8 million, an increase of 31% over the same period of the prior year. This increase was partially driven by higher headcount to support the growth of our domestic and international businesses. Headcount in sales and marketing functions increased to 188 at the end of 2015 from 159 at the end of 2014.
Additionally, during 2015, we expanded investments in marketing programs on behalf of our service providers. These included a new co-advertising program and the continued expansion of the Alarm.com Academy training program.
Looking ahead to 2016, we expect sales and marketing expenses to increase in absolute dollars as well as on a percent of revenue basis. We plan to add headcount to support our international expansion and other growth initiatives, and increase investment in our core business with the marketing programs I just mentioned.
General and administrative costs increased 37% to $9.5 million over the same period of the prior year. In the fourth quarter of 2015, G&A included $2.8 million of legal expenses related to intellectual property litigation, which we exclude from adjusted EBITDA. The fourth quarter of 2014 included no comparable litigation fees. G&A was also impacted by the addition of costs related to becoming a public company, including professional fees incurred to assist in the implementation of Sarbanes-Oxley compliance.
These increases were partially offset by a $650,000 noncash gain recorded to reduce a contingent liability related to the purchase accounting for an acquisition. Net of the effective legal expenses and stock-based compensation, both of which are excluded from adjusted EBITDA, and net of the noncash gain recorded, G&A would have been $6.6 million in the quarter, an increase of 10% over the same period in the prior year on an adjusted basis. This would have represented a 100 basis point decline in G&A expense as a percent of revenue.
Looking ahead to 2016, we expect additional leverage in G&A expenses, excluding IP litigation cost. Research and development expense was $13.3 million in the fourth quarter, which represents a 98% increase over the same period in the prior year.
R&D expense in Q4 2015 was impacted by charges we recorded related to the renegotiation of a contract with a manufacturer. The manufacturer was working with one of our other segment businesses focused on the retail channel, and we reduced the scale of that initiative and reallocated much of those resources to the core business. Excluding these charges, R&D expense increased 36% over the same period of the prior year, which is largely driven by compensation expense as we hired into engineering and other R&D-related functions. The total number of employees in research and development grew to 261 at the end of 2015 as compared to 187 at the end of 2014.
Looking ahead to 2016, we plan to continue to increase our investment in R&D, both in absolute dollars as well as on a percent of revenue basis to further extend our leadership position in the market.
Adjusted EBITDA improved to $9.7 million in the fourth quarter of 2015 as compared to $9.2 million in the same period of the prior year with the increase driven by growth in SaaS and license revenue.
We ended the quarter with cash and cash equivalents of $128.4 million, up from $42.6 million as of December 31, 2014. The company raised $98 million in net proceeds from the initial public offering, which closed in July 2015.
We generated $6 million in cash flow from operations during the quarter, a decrease from $9.1 million in the fourth quarter of 2014. The decline in cash flow was driven by higher IP litigation expenses and an increase in the noncash items impacting net income, including deferred income tax assets.
Capital expenditures of $3.8 million during the quarter increased from $700,000 during the same quarter of 2014. Over 63% of our capital expenditures in the quarter were subsidized by tenant improvement incentives related to the build-out of new office space, which we relocated to this January.
I want to conclude by initiating SaaS and license revenue guidance for the first quarter of 2016 as well as for the full year and total revenue, adjusted EBITDA and non-GAAP earnings per share guidance for the full year 2016.
For the first quarter of 2016, we expect SaaS and license revenue in the range of $39.3 million to $39.5 million. For the full year 2016, we expect SaaS and license revenue in the range of $169 million to $169.5 million. Total revenue for 2016 is expected to be in the range of $236 million to $239.5 million, with hardware and other revenue projected to be $67 million to $70 million. Our expectations for full year 2016 adjusted EBITDA are in the range of $40 million to $42 million, which reflects an adjusted EBITDA margin of 17% versus 16% in 2015.
Non-GAAP adjusted net income for the full year is projected to be $22.2 million to $23.3 million or $0.46 to $0.48 per diluted share based on an estimate of 48.3 million weighted average diluted shares outstanding.
We project full year 2016 stock-based compensation expense of about $6.9 million. Our full year tax rate is expected to be approximately 37%, with the increase in the effective tax rate as compared to 2015 related to additional R&D credits realized in 2015, which reduced the 2015 tax rate by 400 basis points.
In summary, we are pleased with our fourth quarter and full year 2015 results, and we have a positive outlook for 2016 that is driven by ongoing strength in our core business as well as encouraging progress in our international and other initiatives.
We will now turn the call over to the operator for Q&A.