Santiago Giraldo
Analyst · Dougherty & Company
Thank you, Christian. During the second quarter of 2016, we produced considerable revenue growth to achieve a 25% expansion in adjusted EBITDA. I will provide an overview of our results beginning with Slide #13.
Looking at our revenue bridges, increased sales reflect an accelerated pace of activity in the different regions within our footprint, partially offset by unfavorable FX. On a reported basis, total revenues increased 33.5%. For a more balanced comparison, on a constant-currency basis, with FX rates held flat at 2015 levels, revenue increased 43.1% year-over-year, excluding our $5.6 million impact from unfavorable foreign currency to Colombian sales.
This was meaningful progress led by considerable strength in our Latin American operations and continued growth in the U.S. In the U.S., revenues improved 36.4% to $45.5 million for the second quarter, reflecting increased project activity in Florida and diversification to a range of projects in other states, including New York, New Jersey, Baltimore-Washington area and Texas. Overall, the U.S. represented over 59% of our second quarter revenues compared to 57% in the prior year quarter.
The FX impact I mentioned earlier was primarily felt in our revenues from Colombia, which, in total local currency or on a constant-currency basis, increased 54.9% for the second quarter. Unfavorable foreign currency resulted in reported Colombia revenues up 29.4% compared to prior year quarter.
Turning to Slide 14. Adjusted EBITDA grew 25.2% to $17.1 million for the second quarter. As a reminder, adjusted EBITDA excludes the impact of foreign exchange gains and losses related to monetary balance sheet accounts. Adjusted EBITDA in the second quarter excludes an FX loss of $1.3 million compared to an FX loss of $168,000 in the prior year quarter.
Looking at the adjusted EBITDA bridge, improvement was mainly related to a $5.6 million increase in gross profit comprised of $7 million related to volume, partly offset by price and product mix. Cost for aluminum are lower year-over-year, benefiting results by remaining stable in recent months. This improvement more than offset $2.4 million of additional SG&A spend to support growth initiatives. Overall, we are very pleased with the core improvement in our adjusted EBITDA.
Moving to Slide 15, we provide a more complete picture of our financial results. Q2 gross profit increased 27% to $26.4 million compared to the prior year quarter. Gross margin was 34% compared to 36% in the prior year quarter. The gross margin difference was primarily due to higher incremental electric and gas consumption costs related to unusually warm weather caused by El Niño and the effect on inventories related to the peso revaluation over the second quarter of the year.
SG&A as a percent of revenues improved 180 basis points year-over-year to 18.1% with increased revenues more than offsetting higher shipping cost to serve more distant markets and to support lean manufacturing initiatives.
Operating income increased to $12.5 million from $9.3 million with operating margin essentially stable at 16%. Reported operating income is impacted by FX exchange, but noncash items such as the gain or loss on earn-out shares and warrant liabilities are reported below the operating line.
GAAP net income was $14.3 million or $0.47 per share as compared to a net loss of $21 million or $0.84 loss per share in the previous year quarter.
Excluding the changes in noncash warrant and earn-out share liabilities, adjusted net income for the second quarter was $4.3 million or $0.14 per share compared to net income of $5 million or $0.20 per share in the prior year quarter. The difference was mainly due to higher operating income, which was more than offset by higher interest expense and foreign currency losses in the second quarter of 2016 compared to the prior year quarter.
The implied tax rate to derive adjusted net income was approximately 46% compared to 42% in the prior year quarter, mainly due to the timing of nondeductible expenses under Colombian tax rules, which can vary from quarter-to-quarter. We continue to expect our long-term normalized tax rate to approximately 40%.
Turning to the balance sheet on Slide #16. During the second quarter of 2016, the company ended with a net increase in cash of $11 million and capital expenditures of $16.5 million between the maintenance and growth CapEx, which were related to the new lines and furnaces already discussed and associated with the company's growth.
At June 30, 2016, our cash position stood at $56.4 million, which includes a $26.9 million in short-term investments and a long-term debt figure of $140.9 million, which also includes capital leases.
Moving to Slide #17. We have made continued strides to grow our business in each region since 2012 and through the first half of 2016. We expect positive momentum to continue into the second half of the year. Based on our improved commercial construction markets, continued market share gains and improving operating efficiencies, we continue to expect total revenues to grow approximately 20% to $288 million. We now expect adjusted EBITDA to increase to a range between $70 million to $75 million, implying roughly a 32% growth at the midpoint compared to $55 million in 2015, excluding FX gains and losses.
We believe our revised adjusted EBITDA outlook represents a more prudent outlook based on our current mix of productivity and backlog, additional investments to support growth and better visibility on our margin profile into the back half of 2016 as compared to our initial full year 2016 outlook introduced in mid-2015.
In closing, our strategic investments in capacity, products and people, combined with our business development activities and growing project portfolio, provide us with a firm foundation to achieve another year of very good adjusted EBITDA improvement.
We thank you for your continued support. We'll be happy to answer any questions. Operator, please open the line for any questions.