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 Services1.51%-1.05 ppDiversified Banks3.72%-0.89 ppInsurance Brokers0.76%+0.21 ppConsumer Finance0.60%-0.21 ppAsset Management & Custody Banks0.55%-0.13 ppInvestment Banking & Brokerage1.28%-0.11 ppRegional Banks0.45%+0.06 ppProperty & Casualty Insurance0.90%+0.04 ppFinancial Exchanges & Data1.12%+0.02 ppMulti-line Insurance0.22%+0.00 ppReinsurance0.04%+0.00 ppLife & Health Insurance0.52%-0.00 ppMulti-Sector Holdings0.00%+0.00 pp
3 · Sub-industry
Inside Insurance Brokers
Insurance Brokers · weight
0.76%
Industry change · 12M
+0.21 pp
Insurance Brokers · contribution
+0.207 pp
Company participation
20%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 2022 · 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 |
|---|---|---|---|---|---|---|---|
| Willis Towers Watson → WTW | United States | $22.8bn | 0.078% | -0.008 pp | +0.078 pp | +1.9% | No |
| Brown & Brown → BRO | United States | $18.4bn | 0.063% | -0.000 pp | +0.063 pp | +20.5% | No |
| Arthur J. Gallagher & Co. → AJG | United States | $37.6bn | 0.129% | +0.002 pp | +0.030 pp | +30.1% | Yes |
| Marsh McLennan → MRSH | United States | $81.8bn | 0.281% | -0.012 pp | +0.025 pp | +12.9% | No |
| Aon plc → AON | United States | $61.4bn | 0.211% | -0.010 pp | +0.010 pp | +12.7% | 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.