Jamere Jackson
Executive Vice President and Chief Financial Officer at AutoZone
Thanks, Bill, and good morning, everyone. As Bill mentioned, we had solid results for our third quarter. This quarter, we delivered a 1.9% domestic comp growth, a 9.3% increase in EBIT, and a 17.5% increase in EPS.
To start this morning, let me take a few moments to elaborate on the specifics in our P&L for Q3. For the quarter, total sales were just under $4.1 billion, up 5.8%, reflecting continued strengthen in our industry and solid execution of our growth initiatives. Let me give a little more color on our growth initiatives, starting with our commercial business for the third quarter. Our domestic DIFM sales increased 6.3% to just over $1.1 billion and were up just over 32% on a two-year stack basis. Sales to our domestic DIFM customers represented 31% of our domestic auto part sales. Our weekly sales per program were $16,786, up 1.2%. We experienced growth across both our local customer base and national accounts with locals being the stronger of the two categories.
Our results for the quarter set another record for highest weekly sales volume in the history of the chain at $92.5million. I want to reiterate that our commercial business is strong and we believe we grew share despite the deceleration in our growth rates this quarter. We have a commercial program in approximately 88% of our domestic stores, which leverages our DIY infrastructure and we're building our business with national, regional and local accounts. This quarter, we opened 26 net new programs, finishing with 5,526 total programs. As expected, commercial growth continues to lead the way in FY'23, and we continue to focus on growing our business faster. Our strategy remains intact as we continue to gain share in the industry. And as I've noted on past calls, our mega hub strategy is driving strong performance and positioning us for an even brighter future in our commercial and retail businesses.
Once again, I'll add some color on our progress. We now have 85 mega hub locations with four new ones opened in Q3. While I mentioned a moment ago, the commercial weekly sales per program average was roughly $16,800, the 85 mega hubs averaged significantly higher sales than the balance of the commercial footprint and continue to grow significantly faster than our overall commercial business in Q3. These assets are not only performing well individually, but the fulfillment capability for the surrounding AutoZone stores is giving our customers access to 10s of thousands of additional parts and lifting the entire network for both DIY and commercial. This strategy is working. We will open 22 to 25 new mega hubs in FY'23 and we remain committed to our objective to reach 200 mega hubs, supplemented by 300 regular hubs.
Now, many of you've heard me say that in the near-term our commercial business should grow double-digits as far as the eye can see, and we maintain that conviction despite this quarter's results. We are significantly under penetrated with a four or five share in an addressable market that is approaching $100 billion. The investments that we've made in our Duralast brand, expanding our coverage and assortment, adding more hubs and mega hubs, building technology and improving our customer service continue to pay significant dividends and have a long runway. Nothing has changed in our views on what we can accomplish going forward, although we still have work to do to get back to this performance.
Moving to our domestic retail business, we delivered a 0.6% comp in Q3. Like our domestic commercial business, retail has been resilient and we continue to grow share and deliver positive comp growth despite the dismal March. We exited the quarter much stronger and we're focused on execution in Q4. We saw 4% ticket growth as Bill mentioned, and we saw traffic down 3% from last year's levels. However, excluding the middle four weeks of the quarter, traffic was in line with last quarter and we were down only 2%. This past quarter, we continued to gain unit and dollar share across the retail segment, a reflection of the relative strength of our business.
Our DIY business has continued to strengthen competitively behind our growth initiatives. In addition, on a macro basis, the market is still experiencing a growing and aging car park with both the new and used-car market posting significant challenges for our customers. We expect these markets to remain challenged for a longer period of time than we originally assumed, which should be a tailwind for DIY. These dynamics, growth initiatives and macro car park tailwinds have driven a positive comp despite consumer discretionary spending pressure from overall inflation in the economy. We are forecasting a resilient DIY business for the remainder of 2023.
Now, I'll say a few words regarding our international businesses. We continue to be pleased with the progress we're making in Mexico and Brazil. During the quarter, we opened six new stores in Mexico to finish with 713 stores and two new stores in Brazil, ending with 83. On a constant currency basis, we continue to accelerate our sales growth in both countries at higher-growth rates than we saw in the overall business. We remain committed to our store opening schedules in both markets and expect both countries to be significant contributors to sales and earnings growth in the future. With just over 11% of our total store base currently outside the US and a commitment to continued expansion in a disciplined way, we are bullish on international growth and we're adding stores and supply chain capacity in Mexico to improve our competitive positioning.
Now let me spend a few minutes on the rest of the P&L and gross margins for the quarter. Our gross margin was up 56 basis points, including a $17 million LIFO credit, which drove 42 basis points of improvement. Excluding the LIFO benefit, our gross margin increase over last year's quarter was driven by higher merchandise margins, which more than offset a drag from the commercial business mix. With this quarter's LIFO gain, we have taken our remaining LIFO balance to $89 million. And as I mentioned over the last few quarters, hyperinflation and freight costs was the primary driver for the charges we took in the P&L. Freight costs have continued to abate over the past several months and we expect this trend to continue and drive a similar LIFO benefit in the fourth quarter. As a reminder, we plan to take P&L gains only to the extent of the charges we've taken thus far. And after we have taken P&L gains that fully reversed the charges that we've incurred, we expect to rebuild our unrecorded LIFO reserve balances as we've done historically.
Moving to operating expenses, our expenses were up 5.5% versus last year's Q3 as SG&A levered 10 basis-points versus last year. As we've said previously, we're committed to being disciplined on SG&A growth as we move forward and we will continue to manage expenses in line with sales growth over-time.
Now moving to the rest of the P&L. EBIT for the quarter was $858 million, up 9.3% versus the prior year's quarter. Excluding the $17 million LIFO credit, EBIT would have been up 7.1% over last year. Interest expense for the quarter was $74.3 million, up 77% from Q3 a year-ago as our debt outstanding at the end of the quarter was $7.3 billion versus $6.1 billion at Q3 and last year. We are planning interest expense in the and $105 million area for the fourth quarter versus $64 million in last year's fourth quarter. Higher debt levels and higher borrowing rates, especially at the short end of the borrowing curve are driving the increase in interest expense.
For the quarter, our tax rate was 17.4% and below last year's third quarter rate of 20.3%. This quarter's rate benefited 595 basis points from stock options exercised, while last year's benefit was 284 basis points. For the fourth quarter, we suggest investors model us at approximately 23.4% before any assumption on credits due to stock option exercises.
Moving to net income and EPS, net income for the quarter was $648 million, up 9.3% versus last year's third quarter. Our diluted share count of $19 million was 7% lower than last year's third quarter. The combination of higher net income and lower share count drove earnings per share for the quarter to $34.12, up 17.5% versus a year-ago. Excluding the LIFO credit, our net income would have increased 7.1% and our EPS growth would have been 15.2%.
Now let me talk about our free cash flow for Q3. For the third quarter, we generated $554 million in free cash flow versus $682 million a year ago. Year-to-date, we've generated just over $1.4 billion versus just over $1.6 billion a year ago. We expect to be an incredibly strong cash-flow generator going forward and we remain committed to returning meaningful amounts of cash to our shareholders.
Regarding our balance sheet, our liquidity position remains very strong and our leverage ratios remain below our historic norms. Our inventory per store was up 4.3% versus Q3 last year and total inventory increased 7.4%, driven primarily by inflation, our growth initiatives and in-stock recoveries. Net inventory defined as merchandise inventories less accounts payable on a per store basis was a negative $215,000 versus negative $216,000 last year and negative $227,000 last quarter. As a result, accounts payable as a percent of gross inventory finished the quarter at 126.5% versus last year's Q3 of 127.9%.
Lastly, I'll spend a moment on capital allocation and our share repurchase program. We repurchased $908 million of AutoZone stock in the quarter and at quarter-end we had just under $850 million remaining under our share buyback authorization. Our strong earnings, balance sheet and powerful free cash generated this year have allowed us to buy back 6% of the company's total shares outstanding since the start of the fiscal year. We remain committed to our disciplined capital allocation approach that enables us to invest in the business, while returning meaningful amounts of cash to shareholders. Our leverage ratio finished Q3 at 2.3 times EBITDAR and we remain committed to return to the 2.5 times area.
To wrap up, we continue to drive long-term shareholder value by investing in our growth initiatives, driving robust earnings and cash and returning excess cash to our shareholders. We're growing our market share and improving our competitive positioning in a disciplined way. Our strategy continues to work. As we look forward to the remainder of our fiscal 2023, we're bullish on our growth prospects, behind a resilient DIY business and growing commercial and international businesses. I continue to have tremendous confidence in our industry, our business and the opportunity to drive long-term shareholder value.
And now, I'll turn it back to Bill.