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

Consumer Discretionary47.4%+40.34 pp Materials1.1%-1.02 pp Utilities1.9%-1.24 pp Real Estate1.9%-1.31 pp Communication Services1.9%-1.52 pp Energy2.7%-2.03 pp Consumer Staples4.8%-4.53 pp Information Technology10.1%-5.91 pp Health Care9.9%-6.82 pp Industrials8.2%-7.41 pp Financials9.9%-8.55 pp

2 · Industry

Inside Industrials

Aerospace & Defense3.45%-3.63 pp Industrial Conglomerates0.70%-0.67 pp Industrial Machinery & Supplies & Components0.56%-0.52 pp Air Freight & Logistics0.54%-0.44 pp Construction Machinery & Heavy Transportation Equipment0.39%-0.44 pp Rail Transportation0.59%-0.36 pp Electrical Components & Equipment0.40%-0.32 pp Passenger Airlines0.32%-0.23 pp Building Products0.25%-0.21 pp Human Resource & Employment Services0.29%-0.16 pp Agricultural & Farm Machinery0.15%-0.16 pp Environmental & Facilities Services0.20%-0.15 pp Research & Consulting Services0.12%-0.06 pp Trading Companies & Distributors0.06%-0.05 pp Data Processing & Outsourced Services0.05%+0.05 pp Cargo Ground Transportation0.04%-0.03 pp Construction & Engineering0.04%-0.03 pp Diversified Support Services0.03%+0.00 pp Heavy Electrical Equipment0.00%+0.00 pp Passenger Ground Transportation0.00%+0.00 pp

3 · Sub-industry

Inside Rail Transportation

Rail Transportation0.59%-0.357 pp

Concentrated

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

View all contributions →

Rail Transportation · weight

0.59%

Industry change · 12M

-0.36 pp

Rail Transportation · contribution

-0.357 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Aug 2018 · 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	$111.4bn	0.360%	-0.308 pp	-0.240 pp	+14.6%	No
Norfolk Southern → NSC	United States	$48.7bn	0.157%	-0.103 pp	-0.089 pp	+16.9%	No
CSX Corporation → CSX	United States	$21.2bn	0.069%	-0.046 pp	-0.028 pp	+32.0%	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.