Observatory · observe first
American International Group
AIG · United States · Multi-line Insurance · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.103%
12M weight contribution
-0.039 pp
3M weight contribution
-0.007 pp
12M price return
+9.8%
Share of matched S&P 500 members
Monthly observations through Dec 2024
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 2024 | $45.4bn | 0.103% | -0.039 pp | +9.8% | No |
| Nov 2024 | $48.0bn | 0.106% | -0.038 pp | +19.3% | No |
| Oct 2024 | $48.9bn | 0.115% | -0.034 pp | +26.4% | Yes |
| Sep 2024 | $47.2bn | 0.110% | -0.034 pp | +23.4% | No |
| Aug 2024 | $49.6bn | 0.120% | -0.013 pp | +34.5% | Yes |
| Jul 2024 | $52.6bn | 0.094% | -0.001 pp | +34.3% | No |
| Jun 2024 | $49.3bn | 0.092% | -0.004 pp | +31.8% | No |
| May 2024 | $52.3bn | 0.100% | +0.006 pp | +52.6% | No |
| Apr 2024 | $51.3bn | 0.149% | +0.016 pp | +45.2% | Yes |
| Mar 2024 | $53.2bn | 0.148% | +0.021 pp | +58.8% | Yes |
| Feb 2024 | $49.6bn | 0.142% | -0.016 pp | +22.2% | No |
| Jan 2024 | $48.8bn | 0.145% | -0.016 pp | +12.7% | Yes |
| Dec 2023 | $47.6bn | 0.142% | -0.028 pp | +9.8% | Yes |
| Nov 2023 | $46.2bn | 0.144% | -0.015 pp | +6.8% | Yes |
| Oct 2023 | $43.6bn | 0.148% | -0.005 pp | +10.2% | Yes |
| Sep 2023 | $43.1bn | 0.144% | +0.002 pp | +30.8% | Yes |
| Aug 2023 | $41.7bn | 0.133% | -0.008 pp | +15.8% | Yes |
| Jul 2023 | $43.6bn | 0.095% | -0.046 pp | +19.3% | No |
| Jun 2023 | $41.6bn | 0.096% | -0.061 pp | +15.3% | No |
| May 2023 | $38.2bn | 0.094% | -0.073 pp | -7.8% | No |
| Apr 2023 | $39.1bn | 0.132% | -0.040 pp | -7.2% | No |
| Mar 2023 | $37.1bn | 0.127% | -0.045 pp | -17.8% | No |
| Feb 2023 | $45.1bn | 0.158% | -0.015 pp | +2.1% | Yes |
| Jan 2023 | $47.0bn | 0.161% | -0.001 pp | +12.0% | 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.