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 Technology33.7%+4.42 pp Financials12.6%+1.00 pp Consumer Staples7.2%+0.57 pp Utilities2.7%+0.11 pp Communication Services2.7%-0.04 pp Real Estate2.5%-0.34 pp Energy2.6%-0.50 pp Materials2.3%-0.52 pp Consumer Discretionary11.8%-0.67 pp Industrials9.5%-0.95 pp Health Care12.4%-3.07 pp

2 · Industry

Inside Industrials

Industrial Machinery & Supplies & Components1.03%-0.24 pp Rail Transportation0.59%-0.23 pp Heavy Electrical Equipment0.22%+0.21 pp Air Freight & Logistics0.37%-0.15 pp Construction Machinery & Heavy Transportation Equipment0.68%-0.15 pp Electrical Components & Equipment0.58%-0.14 pp Passenger Ground Transportation0.36%-0.12 pp Diversified Support Services0.34%+0.10 pp Aerospace & Defense2.24%-0.08 pp Trading Companies & Distributors0.14%-0.05 pp Environmental & Facilities Services0.49%-0.04 pp Research & Consulting Services0.16%-0.04 pp Construction & Engineering0.12%-0.02 pp Passenger Airlines0.20%+0.02 pp Human Resource & Employment Services0.41%-0.01 pp Cargo Ground Transportation0.12%-0.01 pp Building Products0.55%+0.01 pp Data Processing & Outsourced Services0.06%-0.01 pp Industrial Conglomerates0.59%-0.00 pp Agricultural & Farm Machinery0.29%+0.00 pp

3 · Sub-industry

Inside Rail Transportation

Rail Transportation0.59%-0.227 pp

Concentrated

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

View all contributions →

Rail Transportation · weight

0.59%

Industry change · 12M

-0.23 pp

Rail Transportation · contribution

-0.227 pp

Company participation

33%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 2025 · 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	$149.1bn	0.333%	+0.006 pp	-0.110 pp	-0.6%	Yes
CSX Corporation → CSX	United States	$60.6bn	0.136%	-0.020 pp	-0.077 pp	-14.4%	No
Norfolk Southern → NSC	United States	$55.6bn	0.124%	-0.013 pp	-0.040 pp	-0.8%	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.