AZO vs ORLY — which stock performed better?

AutoZone, Inc. (AZO) versus O'Reilly Automotive, Inc. (ORLY), Consumer Discretionary, on 2026-08-24.

Result

O'Reilly Automotive, Inc. (ORLY) performed better on 2026-08-24. AZO moved -0.140%, ORLY moved 1.900%.

Why these two companies

Advance Auto Parts' Q2 report on Thursday, August 20, 2026 paired an earnings beat with a sales miss and weak guidance, sending AAP shares down more than 20% and dragging the whole DIY auto-parts group with it. AutoZone fell 4.32% to close at $3,006.57 and O'Reilly slid 2.3% to $89.07 that same session even though neither company reported any news of its own, purely on read-through fears about softening do-it-yourself demand. That sympathy selloff sets up a genuine question heading into the new week: which of the two industry leaders is better insulated from the demand worries that just hammered their smaller rival?

The research

AutoZone and O'Reilly Automotive both run large chains of stores selling car parts and supplies to everyday drivers and repair shops across the country. A reason to like AutoZone is that its commercial business, selling parts to professional mechanics and shops, has been growing quickly and helping offset any softness in walk-in retail sales. A reason to like O'Reilly is that its sales and store growth have stayed consistently strong, and its business is split fairly evenly between everyday customers and professional shops, which can make results steadier.

Both stocks fell on Thursday, August 20, 2026, after a smaller competitor, Advance Auto Parts, reported disappointing sales and gave a cautious outlook, even though neither AutoZone nor O'Reilly had any bad news of their own that day. AutoZone dropped further than O'Reilly on that news, which is one thing worth keeping in mind: investors reacted more sharply to AutoZone even without company-specific news.

One more thing to watch is timing: AutoZone reports its next set of results on Tuesday, September 22, 2026, well before the game date, while O'Reilly's next report isn't until Wednesday, October 28, 2026. That means AutoZone's next earnings check-in with investors is closer at hand, while O'Reilly has more time before its numbers are tested.