Derrek Gafford
Analyst · Bank of America Merrill Lynch
Thanks, Steve. I'll start off today with a high-level discussion of the quarter and our expectations for Q2. Then we'll drop into a deeper discussion of our business results.
In my commentary today, any reference to our performance is based on a comparison to the same period a year ago, unless stated otherwise. I'll be using adjusted EBITDA and adjusted SG&A terminology, which we believe provides a clear representation of our performance. These terms exclude nonrecurring acquisition and integration costs incurred during 2013. Diluted net income per share of $0.04 was a penny above our midpoint expectation as we continued to drive efficiencies in the business. These efficiencies combined with operating leverage expanded adjusted EBITDA margin by 120 basis points.
I'll now share our expectations for Q2. We expect revenue of $458 million to $468 million or growth of about 10%. This is lower than Q1 revenue growth due to the anniversary of the MDT acquisition in the second week of February this year. We expect diluted earnings per share of $0.33 to $0.38. This equates to about adjusted EBITDA of about $30 million or growth of nearly 25%.
Now let's take a deeper look at this quarter's results starting with revenue. Total revenue growth this quarter of 14% as a result of acquisition and organic revenue growth. Acquisitions completed in 2013 contributed about 10 points to the growth and organic operations contributed about 4 points. Revenue of $396 million was $2 million under the bottom of our expected range.
As mentioned by Steve, weather had an impact on our business. To better understand this, I'm providing estimates of our monthly organic revenue trends this year. January was about 7%; February, 2%; March, 4%; and the first 2 weeks of April, 5%. Further analysis of our revenue trend is found in the 8-K filed today. For Q2, we expect total revenue growth of about 10% with 5 points coming from the TWC acquisition completed last year and about 5 points from organic growth.
Now let's cover gross margin. Gross margin for the quarter of 25.1% was near the high-end of our expectation. We started the year strong by successfully adjusting bill rates for any statutory increases. This resulted in gross margin being roughly equal to Q1 a year ago.
Now let's discuss sales, general and administrative expense. SG&A of $92 million this quarter was about $2 million less than our original expectation from efforts to operate more efficiently. We consolidated 20 branches this quarter with plans for another 40 by year end. Driving this progress is the use of technology to create efficiencies and repeatable high-volume service activities, and in our recruiting processes by using more efficient methods to onboard and recruit candidates.
Historically, the benefit from an average branch consolidation has been about $100,000 of annual EBITDA, primarily from SG&A savings offset by a small amount of revenue lost. About half of this benefit occurs right after consolidation with the other half phasing in over a couple of quarters.
We delivered strong operating leverage this quarter. Adjusted SG&A as a percentage of revenue declined by 110 basis points. This operating leverage is produced by spreading our largely fixed cost structure across a growing organic revenue base, and is enhanced by a focus on operating more efficiently. On average, we expect to convert about 60% of our incremental organic gross profit to incremental EBITDA. As a result of our efforts to operate more efficiently, we converted about 75% of our organic gross profit to EBITDA in Q1 this year and expect about 80% in Q2 this year, which is reflected in our guidance. This will diminish a bit during the back half of 2014 as we anniversary certain integration efficiencies, but should remain safely above 60% with healthy organic revenue growth.
Now let's shift and provide some additional color on Q2 expectations. Gross margin should be 26.1% to 26.6%. SG&A as a percentage of revenue is expected to be 19.2% to 20.2%. Depreciation and amortization should be about $5.5 million. Our effective income tax rate is expected to be about 40%. The worker opportunity tax credit has not yet been renewed by Congress. This program has been renewed repeatedly in the past but usually on a delayed retroactive basis. Should it be renewed, our annual effective income tax rate would drop to about 35%.
While we're not giving guidance, I want to briefly mention the Affordable Care Act. Due to the short nature of most of our job assignments and the 12-month look-back period in this bill -- law, there should be a manageable cost for us in par with the level of other statutory costs we manage every year. We've been successful in passing these costs through to customers and intend to do the same in this area.
We're very excited about our growth opportunities. Our top priority is excelling in the management of our existing business. Our team has continued to deliver mid single-digit organic growth, strong gross margin and efficiencies. These strengths combined with our operating leverage bode well for continued expansion in our EBITDA margin.
Strategic acquisitions are also an important part of our growth strategy. This quarter, we hit the 1-year mark for the MDT acquisition, a $200 million business integrated into our labor-ready service line. This acquisition was successful in every way. We met or exceeded all expectations on revenue, profitability and integration while adding strong talent to our bench. Our confident season evaluating, completing and integrating acquisitions enabled us to achieve investment returns far above our cost of capital resulting in higher returns for our shareholders and we're excited about the opportunities ahead in this area.
All right, I'll now turn the call back to Steve Cooper.