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
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Consumer Discretionary
Broadline Retail4.91%-0.39 ppHome Improvement Retail0.94%-0.26 ppRestaurants0.86%-0.20 ppAutomotive Retail0.26%+0.13 ppApparel, Accessories & Luxury Goods0.20%-0.08 ppOther Specialty Retail0.10%+0.05 ppHomefurnishing Retail0.04%+0.04 ppHomebuilding0.17%-0.04 ppFootwear0.03%-0.04 ppApparel Retail0.45%+0.03 ppAutomobile Manufacturers3.17%+0.02 ppComputer & Electronics Retail0.03%-0.01 ppConsumer Electronics0.08%-0.01 ppHotels, Resorts & Cruise Lines0.55%-0.01 ppLeisure Products0.02%+0.00 ppDistributors0.03%-0.00 ppCasinos & Gaming0.13%+0.00 ppAutomotive Parts & Equipment0.03%-0.00 pp
3 · Sub-industry
Inside Automobile Manufacturers
Automobile Manufacturers · weight
3.17%
Industry change · 12M
+0.02 pp
Automobile Manufacturers · contribution
+0.018 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Dec 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 |
|---|---|---|---|---|---|---|---|
| General Motors → GM | United States | $75.9bn | 0.149% | +0.032 pp | +0.016 pp | +54.2% | Yes |
| Ford Motor Company → F | United States | $48.9bn | 0.096% | +0.007 pp | +0.012 pp | +42.3% | Yes |
| Tesla, Inc. → TSLA | United States | $1495.7bn | 2.930% | +0.058 pp | -0.010 pp | +11.4% | 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.