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
0.091%
12M weight contribution
-0.045 pp
3M weight contribution
+0.003 pp
12M price return
-12.3%
Share of matched S&P 500 members
Monthly observations through Aug 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 |
|---|---|---|---|---|---|
| Aug 2026 | $54.9bn | 0.091% | -0.045 pp | -12.3% | Yes |
| Jul 2026 | $49.4bn | 0.086% | -0.049 pp | -19.3% | Yes |
| Jun 2026 | $50.6bn | 0.088% | -0.061 pp | -23.4% | No |
| May 2026 | $51.3bn | 0.089% | -0.063 pp | -19.9% | No |
| Apr 2026 | $55.8bn | 0.076% | -0.083 pp | -11.9% | No |
| Mar 2026 | $59.2bn | 0.086% | -0.083 pp | -13.6% | No |
| Feb 2026 | $63.9bn | 0.088% | -0.067 pp | -4.1% | No |
| Jan 2026 | $61.4bn | 0.117% | -0.027 pp | -1.8% | Yes |
| 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 |
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.