Observatory · observe first
CME Group
CME · United States · Financial Exchanges & Data · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.026%
12M weight contribution
-0.018 pp
3M weight contribution
-0.011 pp
12M price return
+7.9%
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 | $19.2bn | 0.026% | -0.018 pp | +7.9% | No |
| Mar 2026 | $19.7bn | 0.029% | -0.013 pp | +15.6% | No |
| Feb 2026 | $21.3bn | 0.029% | -0.009 pp | +28.3% | No |
| Jan 2026 | $19.3bn | 0.037% | +0.002 pp | +24.5% | Yes |
| Dec 2025 | $18.2bn | 0.036% | +0.001 pp | +19.8% | No |
| Nov 2025 | $18.8bn | 0.037% | +0.002 pp | +23.5% | No |
| Oct 2025 | $17.7bn | 0.035% | -0.001 pp | +23.1% | No |
| Sep 2025 | $18.0bn | 0.036% | +0.002 pp | +27.9% | No |
| Aug 2025 | $17.8bn | 0.037% | +0.002 pp | +29.1% | No |
| Jul 2025 | $18.5bn | 0.039% | +0.016 pp | +50.1% | No |
| Jun 2025 | $18.4bn | 0.040% | +0.015 pp | +46.5% | No |
| May 2025 | $19.3bn | 0.044% | +0.018 pp | +49.0% | Yes |
| Apr 2025 | $18.5bn | 0.044% | +0.004 pp | +38.3% | Yes |
| Mar 2025 | $17.7bn | 0.042% | +0.002 pp | +28.9% | Yes |
| Feb 2025 | $16.9bn | 0.038% | -0.004 pp | +20.5% | Yes |
| Jan 2025 | $15.8bn | 0.035% | -0.006 pp | +20.3% | Yes |
| Dec 2024 | $15.5bn | 0.035% | -0.007 pp | +15.4% | Yes |
| Nov 2024 | $15.9bn | 0.035% | -0.010 pp | +14.1% | Yes |
| Oct 2024 | $15.0bn | 0.035% | -0.013 pp | +10.6% | Yes |
| Sep 2024 | $14.7bn | 0.034% | -0.010 pp | +15.4% | Yes |
| Aug 2024 | $14.4bn | 0.035% | -0.008 pp | +11.5% | Yes |
| Jul 2024 | $12.9bn | 0.023% | -0.006 pp | +2.0% | No |
| Jun 2024 | $13.1bn | 0.025% | -0.004 pp | +11.1% | No |
| May 2024 | $13.5bn | 0.026% | -0.004 pp | +19.0% | 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.