In Q2 fiscal 2026 (the quarter ended June 30, 2026), O'Reilly Automotive's largest customer type was Professional service provider customer, with $2.47 billion or 50% of revenue, up 12.5% from a year earlier. Next: DIY customer (48%) and Other customers and sales adjustments (2%).
The fastest-growing customer type from a year earlier was Professional service provider customer (+12.5%).
From company filings, in USD; latest quarter ended June 30, 2026; quarterly data from Q3 fiscal 2017.

Fiscal quarters, from company filings
| Customer type | Q2 FY26 | Q1 FY26 | Q3 FY25 | Q2 FY25 | Share |
|---|---|---|---|---|---|
| Professional service provider customer | $2.5B | $2.3B | $2.3B | $2.2B | 50% |
| DIY customer | $2.3B | $2.2B | $2.3B | $2.2B | 48% |
| Other customers and sales adjustments | $85.6M | $79.6M | $93.1M | $100.7M | 2% |
In USD, fiscal quarters as reported; share = part of Q2 FY26 revenue.
Professional service provider customer: $2.47 billion, or 50% of revenue, in Q2 fiscal 2026.
Click a bar to see that period below. Striped bars are calculated fourth quarters; an empty slot means it could not be calculated on the same basis i
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