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
Automobile Manufacturers3.08%+0.92 ppRestaurants0.89%-0.23 ppHome Improvement Retail1.09%-0.21 ppAutomotive Retail0.33%+0.19 ppBroadline Retail4.77%+0.14 ppHomebuilding0.20%-0.08 ppApparel, Accessories & Luxury Goods0.21%-0.07 ppHotels, Resorts & Cruise Lines0.54%+0.06 ppOther Specialty Retail0.11%+0.05 ppHomefurnishing Retail0.05%+0.05 ppFootwear0.03%+0.02 ppComputer & Electronics Retail0.03%-0.02 ppCasinos & Gaming0.12%-0.02 ppConsumer Electronics0.09%+0.02 ppAutomotive Parts & Equipment0.04%-0.01 ppDistributors0.04%-0.01 ppApparel Retail0.42%-0.00 ppLeisure Products0.02%-0.00 pp
3 · Sub-industry
Inside Automotive Retail
Automotive Retail · weight
0.33%
Industry change · 12M
+0.19 pp
Automotive Retail · contribution
+0.191 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 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 |
|---|---|---|---|---|---|---|---|
| O'Reilly Automotive → ORLY | United States | $91.5bn | 0.183% | +0.172 pp | +0.173 pp | +40.4% | Yes |
| AutoZone → AZO | United States | $71.8bn | 0.144% | +0.010 pp | +0.018 pp | +36.2% | 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.