Observatory · observe first
Comcast
CMCSA · United States · Cable & Satellite · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.113%
12M weight contribution
-0.051 pp
3M weight contribution
-0.008 pp
12M price return
-17.3%
Share of matched S&P 500 members
Monthly observations through Dec 2025
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 |
|---|---|---|---|---|---|
| Dec 2025 | $57.8bn | 0.113% | -0.051 pp | -17.3% | No |
| Nov 2025 | $51.6bn | 0.101% | -0.083 pp | -35.9% | No |
| Oct 2025 | $53.8bn | 0.105% | -0.093 pp | -33.8% | No |
| Sep 2025 | $60.8bn | 0.122% | -0.066 pp | -22.2% | No |
| Aug 2025 | $65.7bn | 0.136% | -0.049 pp | -11.2% | No |
| Jul 2025 | $64.3bn | 0.135% | -0.008 pp | -16.7% | No |
| Jun 2025 | $69.0bn | 0.149% | +0.007 pp | -5.8% | No |
| May 2025 | $66.8bn | 0.151% | +0.004 pp | -10.7% | No |
| Apr 2025 | $66.1bn | 0.159% | -0.055 pp | -7.2% | No |
| Mar 2025 | $71.3bn | 0.169% | -0.063 pp | -12.2% | No |
| Feb 2025 | $69.4bn | 0.155% | -0.082 pp | -13.6% | No |
| Jan 2025 | $65.1bn | 0.145% | -0.123 pp | -25.4% | No |
| Dec 2024 | $72.6bn | 0.165% | -0.088 pp | -11.8% | No |
| Nov 2024 | $83.5bn | 0.184% | -0.068 pp | +6.2% | Yes |
| Oct 2024 | $84.4bn | 0.198% | -0.073 pp | +8.9% | Yes |
| Sep 2024 | $80.8bn | 0.188% | -0.098 pp | -3.1% | Yes |
| Aug 2024 | $76.5bn | 0.185% | -0.103 pp | -12.9% | Yes |
| Jul 2024 | $79.8bn | 0.143% | -0.048 pp | -6.2% | No |
| Jun 2024 | $75.7bn | 0.142% | -0.044 pp | -3.1% | No |
| May 2024 | $77.4bn | 0.148% | -0.040 pp | +4.6% | No |
| Apr 2024 | $73.7bn | 0.213% | -0.057 pp | -5.3% | No |
| Mar 2024 | $83.8bn | 0.232% | -0.018 pp | +17.6% | No |
| Feb 2024 | $82.9bn | 0.237% | -0.015 pp | +18.5% | No |
| Jan 2024 | $90.0bn | 0.268% | +0.007 pp | +21.6% | 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.