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›Materials›Metal, Glass & Plastic Containers›Metal, Glass & Plastic Containers
Metal, Glass & Plastic Containers · weight
0.10%
Industry change · 12M
+0.10 pp
Metal, Glass & Plastic Containers · contribution
+0.105 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Aug 2021 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Ball Corporation →
BALL
United States$31.3bn0.105%+0.008 pp+0.105 pp+20.3%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.