Clifton Pemble
Analyst · Cleveland Research
Thanks, Teri, and good morning, everyone. As announced earlier today, Garmin reported first quarter consolidated revenue of $624 million, up 7% year-over-year. Our fitness, outdoor, marine and aviation segments as a group grew 17% year-over-year and contributed 69% of total revenues. Each of these segments have an exciting growth story, which I will cover in a moment, as a result of the strategic investments we have been making in recent years to grow and diversify our business.
Gross margin was 54.5%, down year-over-year, driven primarily by product mix. Operating margin declined to 16.6% due to lower gross margin and an expense structure that was up slightly from the prior year. These factors, combined with a higher year-over-year effective tax rate, resulted in GAAP EPS and pro forma EPS in the quarter of $0.46 and $0.49, respectively. We are maintaining the guidance issued earlier in the year as our performance thus far is consistent with our expectations.
Next, I'll provide a brief snapshot into the performance of each business segments. Beginning with the fitness segment. Revenue grew 9% on a year-over-year basis, driven by strong growth of products with Garmin Elevate wrist heart rate technology. Running and activity tracker categories experienced robust growth over the prior year, somewhat offset by declines in the multisport category. Growth in operating margins were 51% and 12%, respectively. Gross margin was impacted by product mix shifting towards lower-margin activity trackers, while operating margin was further impacted by ongoing investments in advertising and research and development. As we've mentioned previously, we believe these investments are strategically important in order to maximize the long-term opportunity in the fitness market. While the margin profile of our fitness segment has changed in recent quarters, we believe the performance will stabilize as we complete critical product and market transitions.
Our product lineup continues to grow, and I'm pleased to report that the vívoactive HR and the vívofit 3 are now shipping. I'm particularly excited about the vívoactive HR, which adds Garmin Elevate wrist heart rate technology to our multi-activity GPS-enabled smart tracker. The vívofit 3 adds Move IQ automatic activity detection while carrying forward the strength that our vívofit family is already known for, such as industry-leading 1-year battery life and an always-on display. With these additions, we have a strong lineup of products that offer something for every customer.
To share this good news with the market, we have launched our spring Beat Yesterday advertising campaign across multiple media outlets. I encourage everyone to look for our Beat Yesterday creative material in train stations, airports, movie theaters and, of course, on television.
Looking next at outdoor. Revenue increased 33% year-over-year as we experienced strong demand for outdoor wearables and dog products. The outdoor segment continued to generate strong gross and operating margins of 61% and 29%, respectively. And operating income grew 17% over the year-ago quarter.
We've recently launched several golf products, which have brought new excitement to the market. Additionally, we have completed the acquisition of DeLorme and look forward to integrating their technology into a broad range of product categories.
Looking next at marine. Revenue was up 29% over the prior year, driven by strong sales of chartplotters and fishfinders. Gross margin declined slightly in the quarter to 53% due to product mix, while operating margin improved to 12% as we've successfully leveraged recent investments in the segment. Operating income grew 125% over the prior year.
In recent years, we've made significant investments in our marine segment. As a result, our product line is extremely strong as we enter the 2016 marine season. Our recently launched GPSMap 8400 and 8600 are the largest plotters we've offered and have strong differentiators that stand out in a highly competitive market.
Another area of focus has been on improving our cartography offerings. We recently added depth contours to thousands of lights in the U.S. and Canada, which will broaden our appeal in the inland fishing markets. We also added an exciting feature to our chartplotters that we call Quickdraw Contours, which enables users to create their own depth contours for small fishing lakes not covered by our HD maps.
Turning next to aviation. Revenue grew 8% over the prior year as we experienced growth in both OEM and aftermarket product lines. Gross and operating margins remained strong at 74% and 29%, respectively, resulting in a 16% increase in operating income. During the quarter, we expanded our reach into organizations that own and operate large fleets. Air ambulance provider, AirEvac, chose Garmin avionics for their fleet of Bell 206 and Bell 407 helicopters. And the United States Forest Service chose our G950 integrated cockpit system for their fleet of Sherpa aircraft that operate in the challenging role of fighting wildfires.
In recent years, we have mentioned the ADS-B opportunity, which is the transition to a more efficient, next-generation air traffic management system. This mandated transition, which must be completed by the end of 2019, requires the installation of an ADS-B transponder in every aircraft operating in designated airspace. Garmin has been an early mover in the ADS-B market, and we recently expanded our product offerings with the introduction of the GTX 335 and 345 family for the ADS-B transponders. These transponders feature an integrated dual-link transceiver, offering best available traffic awareness at a value price. We will continue to invest in ADS-B solutions in order to make this transition simple, beneficial and cost-effective for a broad range of aircraft and customers.
We continue to support our OEM partners in the development and certification of new aircraft and helicopter platforms. While industry dynamics remain a factor, market share gains and new platforms provide opportunities for future growth.
So looking finally at the auto segments. Revenues were down 11% for the quarter, primarily due to ongoing PND market contractions and headwinds caused by additional revenue deferrals associated with auto OEM programs. Gross and operating margins were 44% and 9%, respectively. During the quarter, we began shipping our Drive family of PND devices, bringing driver assistance and awareness features to the aftermarket. Additionally, we experienced strong growth in infotainment systems for the APAC region and also the Middle East. Finally, we delivered production software for the new 2017 Mercedes E-class model. We remain focused on disciplined execution in order to bring desired innovation to the market and to maximize profitability in this segment.
So that concludes my remarks for the morning. Next, Doug will walk you through additional details on our financial results. Doug?