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
Transaction & Payment Processing Services0.62%-0.51 ppDiversified Banks3.22%-0.49 ppProperty & Casualty Insurance0.80%-0.40 ppInsurance Brokers0.41%-0.37 ppFinancial Exchanges & Data0.77%-0.35 ppAsset Management & Custody Banks1.18%-0.25 ppInvestment Banking & Brokerage1.41%+0.10 ppLife & Health Insurance0.31%-0.08 ppConsumer Finance0.62%-0.06 ppMulti-line Insurance0.13%-0.05 ppRegional Banks0.32%+0.02 ppReinsurance0.02%-0.01 ppMulti-Sector Holdings0.00%-0.00 pp
3 · Sub-industry
Inside Property & Casualty Insurance
Property & Casualty Insurance · weight
0.80%
Industry change · 12M
-0.40 pp
Property & Casualty Insurance · contribution
-0.398 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 2026 · 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 |
|---|---|---|---|---|---|---|---|
| Progressive Corporation → PGR | United States | $111.3bn | 0.193% | +0.021 pp | -0.186 pp | -28.8% | No |
| Chubb Limited → CB | United States | $120.9bn | 0.210% | +0.027 pp | -0.060 pp | +5.6% | Yes |
| Allstate → ALL | United States | $53.1bn | 0.092% | +0.016 pp | -0.034 pp | +0.1% | Yes |
| Travelers Companies (The) → TRV | United States | $62.1bn | 0.108% | +0.016 pp | -0.034 pp | +7.6% | Yes |
| Arch Capital Group → ACGL | United States | $31.2bn | 0.054% | +0.005 pp | -0.027 pp | -6.0% | No |
| W. R. Berkley Corporation → WRB | United States | $23.7bn | 0.041% | +0.004 pp | -0.023 pp | -12.7% | No |
| Hartford (The) → HIG | United States | $34.9bn | 0.060% | +0.007 pp | -0.023 pp | -0.4% | No |
| Cincinnati Financial → CINF | United States | $24.4bn | 0.042% | +0.007 pp | -0.011 pp | +6.8% | Yes |
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.