Observatory · observe first
O'Reilly Automotive
ORLY · United States · Automotive Retail · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.113%
12M weight contribution
+0.100 pp
3M weight contribution
-0.046 pp
12M price return
+5.4%
Share of matched S&P 500 members
Monthly observations through Apr 2026
Company price index
A separate dimension from market allocation
Historical observations
Most recent 24 observations at or before the selected month
| Month | Market cap | Universe weight | 12M weight change | 12M return | Above 6M weight average |
|---|---|---|---|---|---|
| Apr 2026 | $83.3bn | 0.113% | +0.100 pp | +5.4% | No |
| Mar 2026 | $77.4bn | 0.113% | +0.100 pp | -3.3% | No |
| Feb 2026 | $78.7bn | 0.108% | +0.096 pp | +2.5% | No |
| Jan 2026 | $83.1bn | 0.159% | +0.148 pp | +14.0% | No |
| Dec 2025 | $77.0bn | 0.151% | +0.140 pp | +15.4% | Yes |
| Nov 2025 | $85.8bn | 0.169% | +0.158 pp | +22.7% | Yes |
| Oct 2025 | $80.1bn | 0.157% | +0.146 pp | +22.8% | Yes |
| Sep 2025 | $91.5bn | 0.183% | +0.173 pp | +40.4% | Yes |
| Aug 2025 | $88.0bn | 0.182% | +0.172 pp | +37.6% | Yes |
| Jul 2025 | $5.6bn | 0.012% | +0.004 pp | +30.9% | No |
| Jun 2025 | $5.1bn | 0.011% | +0.003 pp | +28.0% | No |
| May 2025 | $5.2bn | 0.012% | +0.005 pp | +42.0% | No |
| Apr 2025 | $5.4bn | 0.013% | +0.001 pp | +39.7% | Yes |
| Mar 2025 | $5.5bn | 0.013% | +0.001 pp | +26.9% | Yes |
| Feb 2025 | $5.2bn | 0.012% | -0.001 pp | +26.3% | Yes |
| Jan 2025 | $5.0bn | 0.011% | -0.001 pp | +26.5% | Yes |
| Dec 2024 | $4.6bn | 0.010% | -0.001 pp | +24.8% | Yes |
| Nov 2024 | $4.8bn | 0.011% | -0.002 pp | +26.6% | Yes |
| Oct 2024 | $4.5bn | 0.010% | -0.002 pp | +23.9% | Yes |
| Sep 2024 | $4.5bn | 0.010% | -0.002 pp | +26.7% | Yes |
| Aug 2024 | $4.4bn | 0.011% | -0.001 pp | +20.2% | Yes |
| Jul 2024 | $4.4bn | 0.008% | -0.000 pp | +21.7% | No |
| Jun 2024 | $4.1bn | 0.008% | -0.001 pp | +10.5% | No |
| May 2024 | $3.8bn | 0.007% | -0.002 pp | +6.6% | No |
Its weight is estimated market cap divided by the total estimated market cap of matched S&P 500 members for the month. This is not an official float-adjusted S&P index weight.