O'Reilly Automotive closed at $92.34 on Nov 4, up 2.61%, 9.2% below its 52-week closing high. Volume of 12.8M shares was 2.15× its 20-day average (well above normal).
Split-adjusted performance: +8.5% over one month, -2.6% over six months, +0.7% over one year.
In the quarter ended Jun 30, 2026, revenue was $4.89B, up 8.1% from a year earlier, with a net margin of 14.6%.
Short interest was 22.2M shares at the Oct 15 settlement, down 9.7% from the prior report (2.8% of float, 4.2 days to cover).