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
0.133%
12M weight contribution
-0.008 pp
3M weight contribution
+0.038 pp
12M price return
+15.8%
Share of matched S&P 500 members
Monthly observations through Aug 2023
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 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 |
| Dec 2022 | $47.0bn | 0.170% | +0.018 pp | +13.8% | Yes |
| Nov 2022 | $46.9bn | 0.159% | +0.012 pp | +22.8% | Yes |
| Oct 2022 | $43.3bn | 0.154% | -0.015 pp | -1.2% | Yes |
| Sep 2022 | $36.1bn | 0.142% | -0.023 pp | -11.4% | No |
| Aug 2022 | $39.4bn | 0.141% | -0.015 pp | -2.9% | No |
| Jul 2022 | $41.0bn | 0.141% | +0.002 pp | +11.9% | No |
| Jun 2022 | $40.5bn | 0.158% | +0.013 pp | +10.0% | No |
| May 2022 | $46.5bn | 0.167% | +0.005 pp | +13.7% | Yes |
| Apr 2022 | $47.7bn | 0.172% | +0.021 pp | +23.6% | Yes |
| Mar 2022 | $51.1bn | 0.172% | +0.094 pp | +39.1% | Yes |
| Feb 2022 | $49.9bn | 0.173% | +0.097 pp | +42.8% | Yes |
| Jan 2022 | $47.9bn | 0.161% | +0.084 pp | +58.1% | Yes |
| Dec 2021 | $47.2bn | 0.151% | +0.019 pp | +53.9% | No |
| Nov 2021 | $43.7bn | 0.148% | +0.007 pp | +40.6% | No |
| Oct 2021 | $50.5bn | 0.169% | +0.040 pp | +92.7% | Yes |
| Sep 2021 | $46.9bn | 0.165% | +0.165 pp | +104.8% | 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.