Observatory · observe first
Cigna
CI · United States · Health Care Services · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.127%
12M weight contribution
-0.064 pp
3M weight contribution
+0.022 pp
12M price return
-10.5%
Share of matched S&P 500 members
Monthly observations through May 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 |
|---|---|---|---|---|---|
| May 2026 | $73.4bn | 0.127% | -0.064 pp | -10.5% | Yes |
| Apr 2026 | $76.9bn | 0.104% | -0.119 pp | -12.7% | No |
| Mar 2026 | $70.3bn | 0.102% | -0.111 pp | -17.2% | No |
| Feb 2026 | $76.4bn | 0.105% | -0.084 pp | -4.2% | No |
| Jan 2026 | $73.2bn | 0.140% | -0.042 pp | -4.9% | No |
| Dec 2025 | $73.5bn | 0.144% | -0.030 pp | +1.7% | No |
| Nov 2025 | $74.1bn | 0.145% | -0.062 pp | -16.3% | No |
| Oct 2025 | $65.3bn | 0.128% | -0.078 pp | -20.9% | No |
| Sep 2025 | $76.9bn | 0.154% | -0.071 pp | -15.2% | No |
| Aug 2025 | $80.3bn | 0.166% | -0.078 pp | -15.4% | No |
| Jul 2025 | $71.4bn | 0.151% | -0.027 pp | -21.9% | No |
| Jun 2025 | $88.3bn | 0.190% | +0.014 pp | +1.8% | No |
| May 2025 | $84.6bn | 0.192% | +0.005 pp | -6.5% | No |
| Apr 2025 | $93.1bn | 0.223% | -0.079 pp | -3.1% | Yes |
| Mar 2025 | $90.0bn | 0.214% | -0.081 pp | -7.9% | Yes |
| Feb 2025 | $84.5bn | 0.189% | -0.093 pp | -6.6% | No |
| Jan 2025 | $81.8bn | 0.182% | -0.080 pp | -0.6% | No |
| Dec 2024 | $76.8bn | 0.174% | -0.087 pp | -6.3% | No |
| Nov 2024 | $94.0bn | 0.207% | -0.032 pp | +30.7% | Yes |
| Oct 2024 | $87.6bn | 0.206% | -0.105 pp | +3.5% | Yes |
| Sep 2024 | $96.8bn | 0.225% | -0.057 pp | +23.2% | Yes |
| Aug 2024 | $101.1bn | 0.244% | -0.016 pp | +33.3% | Yes |
| Jul 2024 | $99.0bn | 0.178% | -0.013 pp | +20.2% | No |
| Jun 2024 | $93.9bn | 0.176% | -0.016 pp | +19.9% | 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.