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 Homebuilding
Homebuilding · weight
0.22%
Industry change · 12M
+0.22 pp
Homebuilding · contribution
+0.223 pp
Company participation
67%
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 |
|---|---|---|---|---|---|---|---|
| D. R. Horton → DHI | United States | $34.2bn | 0.115% | -0.009 pp | +0.114 pp | +35.2% | Yes |
| NVR, Inc. → NVR | United States | $18.5bn | 0.062% | -0.002 pp | +0.062 pp | +24.3% | Yes |
| PulteGroup → PHM | United States | $14.0bn | 0.047% | -0.008 pp | +0.047 pp | +22.2% | 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.