Observatory · observe first
Assurant
AIZ · United States · Multi-line Insurance · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.023%
12M weight contribution
-0.002 pp
3M weight contribution
+0.002 pp
12M price return
+12.4%
Share of matched S&P 500 members
Monthly observations through Jan 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 |
|---|---|---|---|---|---|
| Jan 2026 | $11.9bn | 0.023% | -0.002 pp | +12.4% | Yes |
| Dec 2025 | $12.1bn | 0.024% | -0.001 pp | +14.7% | Yes |
| Nov 2025 | $11.4bn | 0.022% | -0.003 pp | +2.0% | Yes |
| Oct 2025 | $10.7bn | 0.021% | -0.002 pp | +12.1% | No |
| Sep 2025 | $10.9bn | 0.022% | -0.002 pp | +10.6% | No |
| Aug 2025 | $10.9bn | 0.023% | -0.002 pp | +11.5% | No |
| Jul 2025 | $9.5bn | 0.020% | +0.004 pp | +8.7% | No |
| Jun 2025 | $10.0bn | 0.022% | +0.005 pp | +20.6% | No |
| May 2025 | $10.3bn | 0.023% | +0.006 pp | +18.8% | No |
| Apr 2025 | $9.8bn | 0.024% | -0.003 pp | +12.2% | No |
| Mar 2025 | $10.7bn | 0.025% | -0.002 pp | +13.1% | Yes |
| Feb 2025 | $10.6bn | 0.024% | -0.003 pp | +16.3% | No |
| Jan 2025 | $11.0bn | 0.025% | -0.002 pp | +30.2% | Yes |
| Dec 2024 | $10.9bn | 0.025% | -0.002 pp | +28.5% | Yes |
| Nov 2024 | $11.6bn | 0.026% | -0.002 pp | +36.8% | Yes |
| Oct 2024 | $9.9bn | 0.023% | -0.004 pp | +30.9% | Yes |
| Sep 2024 | $10.3bn | 0.024% | -0.001 pp | +40.8% | Yes |
| Aug 2024 | $10.2bn | 0.025% | +0.001 pp | +42.7% | Yes |
| Jul 2024 | $9.1bn | 0.016% | +0.001 pp | +32.3% | No |
| Jun 2024 | $8.6bn | 0.016% | +0.001 pp | +34.6% | No |
| May 2024 | $9.0bn | 0.017% | +0.001 pp | +46.6% | No |
| Apr 2024 | $9.1bn | 0.026% | +0.004 pp | +44.4% | No |
| Mar 2024 | $9.8bn | 0.027% | +0.005 pp | +59.8% | Yes |
| Feb 2024 | $9.4bn | 0.027% | +0.003 pp | +45.2% | 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.