ORLY — Q2 2026 Financial Report Analysis

Headline: repair-shop sales rose 12%, margins held flat, and buybacks turned 7% profit growth into 10% EPS growth

O'Reilly Automotive's second quarter of fiscal 2026 covered the three months April 1 – June 30, 2026, and was reported July 29, 2026. Sales rose 8.1% to $4,892 million. Comparable store sales (sales growth at U.S. stores open at least a year, which strips out the boost from new stores) grew 6.0%, on top of 4.1% growth a year earlier. Operating margin was unchanged at 20.2%. Net income rose 7.0% to $715 million. Diluted EPS rose 10.3% to $0.86, because the company bought back enough stock to cut its diluted share count by 3.4%. Management raised its full-year sales and EPS guidance.

Key figures

Source: O'Reilly Q2 2026 earnings release (Exhibit 99.1 to the July 29, 2026 Form 8-K), with cause-of-change detail from the Q2 2026 Form 10-Q filed August 7, 2026. Gross margin is gross profit (sales minus the cost of the parts sold, including warehouse and distribution) as a share of sales. Operating margin is the share of sales left after running the stores and head office, before interest and tax.

What drove sales

O'Reilly sells to two groups of customers: professional service providers (independent repair shops and dealers who buy parts for jobs they are paid to do) and DIY customers who fix their own cars. In Q2 professional sales grew 12.5%, more than twice as fast as DIY sales at 4.9%. Professional customers now make up 51.4% of combined professional and DIY sales, compared with 49.6% a year earlier.

The 10-Q breaks the 6.0% comparable-store gain into its parts:

• Average ticket (spending per transaction) rose for both professional and DIY customers. This was helped by "increases in average selling prices on a same-SKU basis," meaning the same parts sold at higher prices. Parts for newer, more complex vehicles also tend to cost more per repair.
• Transaction counts rose for professional customers and fell for DIY customers. The filing says better-engineered cars need repairs less often, which "creates pressure on customer transaction counts."

This means part of the headline comp is price rather than volume. The professional side is growing on both price and volume, while DIY growth is coming from higher tickets on fewer visits. New stores added about $100M of sales that are not counted in the comparable figure. O'Reilly opened 110 net new stores in the first half of 2026.

Why margins held flat

Gross margin stayed at 51.4%. According to the 10-Q, "improved acquisition costs and distribution operating efficiencies" (O'Reilly paid less for the parts it buys and ran its warehouses more efficiently) were offset by the shift toward professional sales, which "carry a lower gross margin percentage than DIY sales." Faster growth with shops therefore pulls margins down unless O'Reilly keeps winning purchasing gains.

Selling, general and administrative costs (SG&A: store wages, rent, insurance and head-office costs) rose 8.4%, slightly faster than sales, and reached 31.3% of sales versus 31.2%. The 10-Q cites "inflationary pressure in costs and higher costs relating to medical and casualty insurance programs," partly offset by spreading fixed store costs over strong comp sales.

Borrowing to buy back stock

Operating income grew 7.8%, but net income grew only 7.0%. The main reason is that interest expense rose 22% to $70M from $57M, as total debt increased to $7.01B from $5.82B a year earlier. The effective tax rate also edged up to 22.6% from 22.4%.

The added debt is paying for share repurchases. O'Reilly bought back 16.7 million shares for $1.51B in Q2, about twice the quarter's $715M of net income. It spent $2.43B in the first half and another $632M after quarter-end through July 29. Its main leverage measure, adjusted debt to EBITDAR (debt plus lease obligations, divided by earnings before interest, tax, depreciation, amortization and rent), rose to 2.17x from 2.06x.

Takeaway: O'Reilly's growth is coming from repair shops, not DIY customers. Professional sales grew 12.5% on both more transactions and bigger tickets, while DIY transactions fell. That mix shift is why operating margin stayed at 20.2% instead of expanding, and why the gap between 7% net income growth and 10% EPS growth came entirely from a debt-funded buyback.

Outlook

Management raised full-year 2026 guidance for comps, revenue and EPS, and left its margin guidance unchanged:

Our read: First-half comps were 7.0%, and Q2 at 6.0% was slower than Q1. A 4%–6% full-year range therefore means management expects clearly slower comp growth in the second half. If the two halves carry similar weight, the guidance implies roughly 1%–5%. That is either conservative or a sign that same-SKU price increases will add less as the year goes on. The key risk to watch is the DIY transaction count: it is already falling and does not have the professional business's share gains to offset it. On the other side, free cash flow guidance of $1.8B–$2.1B is below the $3.06B already spent on buybacks this year through July 29, so the pace of repurchases cannot continue without more borrowing. With only $1.33B left under the current authorization, the leverage ratio will show how aggressive O'Reilly plans to stay.