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
Home Improvement Retail1.62%+1.62 ppRestaurants1.32%+1.32 ppAutomobile Manufacturers1.21%+1.21 ppApparel, Accessories & Luxury Goods0.51%+0.51 ppBroadline Retail0.46%+0.46 ppHotels, Resorts & Cruise Lines0.46%+0.46 ppApparel Retail0.43%+0.43 ppHomebuilding0.22%+0.22 ppCasinos & Gaming0.22%+0.22 ppAutomotive Parts & Equipment0.14%+0.14 ppAutomotive Retail0.12%+0.12 ppConsumer Electronics0.11%+0.11 ppComputer & Electronics Retail0.10%+0.10 ppOther Specialty Retail0.09%+0.09 ppDistributors0.06%+0.06 ppLeisure Products0.05%+0.05 ppFootwear0.00%+0.00 ppHomefurnishing Retail0.00%+0.00 pp
3 · Sub-industry
Inside Automotive Retail
Automotive Retail · weight
0.12%
Industry change · 12M
+0.12 pp
Automotive Retail · contribution
+0.121 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
| Company | Country | Market cap | Universe weight | 3M contribution | 12M contribution | 12M price return | Above 6M weight average |
|---|---|---|---|---|---|---|---|
| AutoZone → AZO | United States | $33.4bn | 0.112% | +0.001 pp | +0.111 pp | +29.5% | Yes |
| O'Reilly Automotive → ORLY | United States | $2.7bn | 0.009% | +0.000 pp | +0.009 pp | +27.6% | 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.