Observatory · observe first
Follow the allocation change
Matched S&P 500 members → sector → industry → sub-industry → company. Each step uses the same percentage points.
Historical time machine
Historical observation
20182026
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Financials
Diversified Banks2.59%-3.62 ppTransaction & Payment Processing Services1.52%-1.11 ppProperty & Casualty Insurance0.53%-0.62 ppFinancial Exchanges & Data0.59%-0.55 ppConsumer Finance0.39%-0.47 ppInvestment Banking & Brokerage0.69%-0.47 ppAsset Management & Custody Banks0.38%-0.42 ppLife & Health Insurance0.31%-0.41 ppInsurance Brokers0.30%-0.33 ppRegional Banks0.24%-0.29 ppMulti-line Insurance0.13%-0.20 ppReinsurance0.02%-0.04 ppMulti-Sector Holdings0.00%-0.00 pp
3 · Sub-industry
Inside Multi-line Insurance
Multi-line Insurance · weight
0.13%
Industry change · 12M
-0.20 pp
Multi-line Insurance · contribution
-0.204 pp
Company participation
33%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 2021 · sorted by absolute contribution to 12-month change
| Company | Country | Market cap | Universe weight | 3M contribution | 12M contribution | 12M price return | Above 6M weight average |
|---|---|---|---|---|---|---|---|
| American International Group → AIG | United States | $32.3bn | 0.077% | -0.051 pp | -0.138 pp | -22.3% | No |
| Loews Corporation → L | United States | $12.4bn | 0.030% | -0.016 pp | -0.046 pp | -11.4% | Yes |
| Assurant → AIZ | United States | $8.0bn | 0.019% | -0.016 pp | -0.020 pp | +5.9% | No |
Company contributions use weights among matched S&P 500 members and add through each level without rescaling. Companies without matched shares and prices are omitted. These observations do not establish official index weights or actual fund flows.