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
Universe›Financials›Insurance Brokers›Insurance Brokers

1 · Sector

Weight and 12M allocation change

Information Technology18.4%+8.88 ppFinancials16.5%+7.33 ppHealth Care17.0%+6.61 ppIndustrials13.2%+6.00 ppConsumer Staples8.7%+3.60 ppCommunication Services5.3%+3.24 ppMaterials3.2%+1.83 ppUtilities3.7%+1.55 ppReal Estate3.5%+1.53 ppEnergy3.5%+1.16 ppConsumer Discretionary7.0%-41.73 pp

2 · Industry

Inside Financials

Diversified Banks6.68%+2.85 ppTransaction & Payment Processing Services2.49%+1.43 ppFinancial Exchanges & Data1.05%+0.51 ppProperty & Casualty Insurance1.13%+0.47 ppInvestment Banking & Brokerage1.15%+0.45 ppConsumer Finance0.85%+0.37 ppAsset Management & Custody Banks0.83%+0.30 ppInsurance Brokers0.60%+0.29 ppLife & Health Insurance0.74%+0.27 ppRegional Banks0.56%+0.23 ppMulti-line Insurance0.33%+0.14 ppReinsurance0.06%+0.02 ppMulti-Sector Holdings0.00%+0.00 pp

3 · Sub-industry

Inside Insurance Brokers

Insurance Brokers0.60%+0.285 pp
Concentrated

Most of this industry's gains came from a few companies.

View all contributions →
Insurance Brokers · weight
0.60%
Industry change · 12M
+0.29 pp
Insurance Brokers · contribution
+0.285 pp
Company participation
33%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Dec 2019 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Marsh McLennan →
MRSH
United States$56.2bn0.276%+0.007 pp+0.132 pp+42.3%Yes
Aon plc →
AON
United States$48.8bn0.239%-0.003 pp+0.114 pp+44.7%No
Arthur J. Gallagher & Co. →
AJG
United States$17.8bn0.087%-0.001 pp+0.039 pp+31.8%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.