AutoZone Stock Analysis: Growth Continues but Margins Tighten

Auto parts retailer AutoZone, Inc. (NYSE: AZO) reported fiscal second-quarter 2026 results showing steady sales growth, although profitability declined slightly due to margin pressure and higher operating investments.

Same-Store Sales Show Steady Growth

For the second quarter of fiscal 2026, AutoZone reported net sales of $4.3 billion, representing 8.1% year-over-year growth. Same-store sales remained healthy, with domestic comparable sales increasing 3.4% and total company comparable sales rising 3.3% on a constant currency basis. The company continues to benefit from strong demand in both its DIY and commercial segments, despite winter storms disrupting parts of the U.S. in late January and early February.

International markets showed particularly strong nominal growth, with reported same-store sales up 17.1%, although much of this was driven by currency effects. On a constant currency basis, international comparable sales rose 2.5%, slightly below expectations but still indicating continued market share gains in key markets such as Mexico and Brazil.

Margin Pressure Weighs on Profit Growth

While revenue growth remained solid, profitability faced pressure. For the quarter, gross margin declined to 52.5%, down 137 basis points from the prior year. The decline was primarily driven by a 138 basis point non-cash LIFO charge. Inventory levels increased 13.1% year over year, largely due to growth initiatives and inflation. Net inventory, defined as merchandise inventories less accounts payable, on a per store basis, was negative $105 thousand versus negative $161 thousand last year and negative $145 thousand last quarter.

Operating expenses also increased slightly as the company continued investing in growth initiatives. As a result, operating profit fell 1.2% year over year to $698.5 million, and operating margin declined to 16.3% from 17.9% in the prior-year quarter.

Net income for the quarter came in at $468.9 million, down from $487.9 million a year earlier. Diluted earnings per share were $27.63, compared with $28.29 in the same quarter last year.

Expansion and Shareholder Returns

AutoZone continues to expand its footprint. During the quarter, the company opened 64 net new stores globally, in line with the company's expectations to open approximately 350-360 stores for the full fiscal year, including 43 in the United States, 18 in Mexico, and three in Brazil. The company now operates 7,774 stores across the Americas.

At the same time, AutoZone maintained its aggressive capital return strategy. The company repurchased 85,000 shares at an average price of $3,666, spending $310.8 million during the quarter. AutoZone still has $1.4 billion remaining under its current share repurchase authorization, reinforcing its long-standing commitment to returning cash to shareholders.

Technical Outlook

Overall, AutoZone’s business fundamentals remain strong. The company continues to grow revenue, expand its store network, and repurchase shares aggressively. However, margin pressure and macro factors such as inflation and inventory costs are creating some near-term earnings headwinds.

From a technical perspective, the immediate resistance level sits at $3,783. If the stock can break and hold above this level, the next key resistance to watch will be $3,887. Clearing these levels would strengthen the bullish case and could signal a more sustained upward trend.

However, failure to break through resistance may lead to a pullback. In that scenario, the stock could move lower to test support around $3,538. If selling pressure intensifies, a deeper correction could bring the price toward the next major support level at $3,320.