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›Industrials›Rail Transportation›Rail Transportation

1 · Sector

Weight and 12M allocation change

Information Technology17.9%+7.76 pp Health Care16.6%+6.64 pp Financials15.9%+6.02 pp Industrials13.4%+5.24 pp Consumer Staples9.3%+4.44 pp Communication Services5.4%+3.44 pp Real Estate4.0%+2.04 pp Utilities3.9%+2.00 pp Materials2.9%+1.73 pp Energy3.6%+0.89 pp Consumer Discretionary7.2%-40.20 pp

2 · Industry

Inside Industrials

Aerospace & Defense5.20%+1.75 pp Industrial Conglomerates1.41%+0.71 pp Industrial Machinery & Supplies & Components0.95%+0.39 pp Rail Transportation0.97%+0.38 pp Human Resource & Employment Services0.56%+0.27 pp Environmental & Facilities Services0.47%+0.27 pp Construction Machinery & Heavy Transportation Equipment0.65%+0.25 pp Air Freight & Logistics0.77%+0.23 pp Building Products0.44%+0.19 pp Electrical Components & Equipment0.59%+0.19 pp Passenger Airlines0.48%+0.15 pp Research & Consulting Services0.24%+0.12 pp Agricultural & Farm Machinery0.27%+0.12 pp Diversified Support Services0.13%+0.10 pp Trading Companies & Distributors0.09%+0.04 pp Construction & Engineering0.08%+0.04 pp Data Processing & Outsourced Services0.08%+0.03 pp Cargo Ground Transportation0.06%+0.02 pp Heavy Electrical Equipment0.00%+0.00 pp Passenger Ground Transportation0.00%+0.00 pp

3 · Sub-industry

Inside Rail Transportation

Rail Transportation0.97%+0.382 pp

Concentrated

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

View all contributions →

Rail Transportation · weight

0.97%

Industry change · 12M

+0.38 pp

Rail Transportation · contribution

+0.382 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Aug 2019 · 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
Union Pacific Corporation → UNP	United States	$114.1bn	0.621%	-0.067 pp	+0.261 pp	+9.9%	No
Norfolk Southern → NSC	United States	$45.8bn	0.249%	-0.053 pp	+0.092 pp	+2.1%	No
CSX Corporation → CSX	United States	$17.8bn	0.097%	-0.020 pp	+0.028 pp	-8.4%	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.