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
0.148%
12M weight contribution
+0.007 pp
3M weight contribution
-0.008 pp
12M price return
+40.6%
Share of matched S&P 500 members
Monthly observations through Nov 2021
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 |
|---|---|---|---|---|---|
| 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 |
| Aug 2021 | $46.7bn | 0.156% | +0.156 pp | +93.3% | Yes |
| Jul 2021 | $40.6bn | 0.139% | +0.139 pp | +52.1% | Yes |
| Jun 2021 | $40.8bn | 0.144% | +0.144 pp | +57.6% | Yes |
| May 2021 | $45.3bn | 0.162% | +0.162 pp | +82.2% | Yes |
| Apr 2021 | $41.9bn | 0.152% | +0.028 pp | +97.5% | Yes |
| Mar 2021 | $40.0bn | 0.078% | +0.078 pp | +97.5% | No |
| Feb 2021 | $38.0bn | 0.076% | +0.076 pp | +8.7% | No |
| Jan 2021 | $32.3bn | 0.077% | -0.138 pp | -22.3% | No |
| Dec 2020 | $32.6bn | 0.132% | -0.087 pp | -23.1% | Yes |
| Nov 2020 | $33.1bn | 0.141% | -0.090 pp | -24.0% | Yes |
| Oct 2020 | $27.1bn | 0.128% | -0.112 pp | -38.1% | Yes |
| Sep 2020 | $23.7bn | 0.000% | -0.257 pp | -48.6% | No |
| Aug 2020 | $25.1bn | 0.000% | -0.246 pp | -42.0% | No |
| Jul 2020 | $27.7bn | 0.000% | -0.259 pp | -40.6% | No |
| Jun 2020 | $26.9bn | 0.000% | -0.250 pp | -39.4% | No |
| May 2020 | $25.9bn | 0.000% | -0.259 pp | -39.3% | No |
| Apr 2020 | $22.2bn | 0.124% | -0.106 pp | -44.9% | No |
| Mar 2020 | $21.2bn | 0.000% | -0.215 pp | -41.9% | No |
| Feb 2020 | $36.8bn | 0.000% | -0.218 pp | +0.1% | No |
| Jan 2020 | $43.7bn | 0.216% | +0.090 pp | +19.2% | No |
| Dec 2019 | $44.7bn | 0.219% | +0.094 pp | +33.6% | 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.