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 Retail1.71%+1.71 ppAutomobile Manufacturers1.35%+1.35 ppRestaurants1.35%+1.35 ppHotels, Resorts & Cruise Lines0.51%+0.51 ppApparel, Accessories & Luxury Goods0.47%+0.47 ppBroadline Retail0.45%+0.45 ppApparel Retail0.41%+0.41 ppHomebuilding0.21%+0.21 ppCasinos & Gaming0.21%+0.21 ppAutomotive Parts & Equipment0.14%+0.14 ppAutomotive Retail0.14%+0.14 ppConsumer Electronics0.10%+0.10 ppComputer & Electronics Retail0.09%+0.09 ppOther Specialty Retail0.09%+0.09 ppDistributors0.06%+0.06 ppLeisure Products0.04%+0.04 ppFootwear0.00%+0.00 ppHomefurnishing Retail0.00%+0.00 pp
3 · Sub-industry
Inside Broadline Retail
Broadline Retail · weight
0.45%
Industry change · 12M
+0.45 pp
Broadline Retail · contribution
+0.450 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 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 |
|---|---|---|---|---|---|---|---|
| Amazon → AMZN | United States | $83.2bn | 0.292% | -0.014 pp | +0.292 pp | +4.3% | No |
| eBay Inc. → EBAY | United States | $45.3bn | 0.159% | -0.010 pp | +0.159 pp | +35.3% | 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.