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 Technology29.1%+12.97 pp Health Care16.4%+6.67 pp Financials13.7%+6.01 pp Industrials10.0%+3.06 pp Consumer Staples7.4%+3.04 pp Energy2.8%+1.70 pp Real Estate3.2%+1.49 pp Utilities3.1%+1.42 pp Materials3.2%+1.41 pp Communication Services3.7%+0.84 pp Consumer Discretionary7.5%-38.63 pp

2 · Industry

Inside Industrials

Rail Transportation1.01%+0.49 pp Industrial Machinery & Supplies & Components1.10%+0.45 pp Air Freight & Logistics0.77%+0.32 pp Electrical Components & Equipment0.62%+0.26 pp Building Products0.56%+0.24 pp Industrial Conglomerates0.90%+0.20 pp Construction Machinery & Heavy Transportation Equipment0.60%+0.20 pp Human Resource & Employment Services0.43%+0.19 pp Environmental & Facilities Services0.40%+0.19 pp Agricultural & Farm Machinery0.39%+0.17 pp Aerospace & Defense2.19%-0.09 pp Research & Consulting Services0.20%+0.08 pp Passenger Airlines0.22%+0.07 pp Cargo Ground Transportation0.13%+0.07 pp Heavy Electrical Equipment0.06%+0.06 pp Trading Companies & Distributors0.13%+0.06 pp Construction & Engineering0.10%+0.05 pp Diversified Support Services0.10%+0.03 pp Data Processing & Outsourced Services0.06%+0.02 pp Passenger Ground Transportation0.00%+0.00 pp

3 · Sub-industry

Inside Rail Transportation

Rail Transportation1.01%+0.492 pp

Concentrated

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

View all contributions →

Rail Transportation · weight

1.01%

Industry change · 12M

+0.49 pp

Rail Transportation · contribution

+0.492 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jan 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
Union Pacific Corporation → UNP	United States	$157.2bn	0.529%	+0.010 pp	+0.210 pp	+26.2%	Yes
CSX Corporation → CSX	United States	$75.9bn	0.255%	-0.013 pp	+0.203 pp	+21.1%	Yes
Norfolk Southern → NSC	United States	$66.2bn	0.223%	-0.016 pp	+0.079 pp	+16.8%	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.