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 Retail3.93%-0.84 ppHome Improvement Retail0.63%-0.54 ppRestaurants0.61%-0.52 ppAutomobile Manufacturers2.10%-0.28 ppApparel Retail0.34%-0.12 ppApparel, Accessories & Luxury Goods0.11%-0.11 ppHomebuilding0.11%-0.08 ppOther Specialty Retail0.06%-0.05 ppHotels, Resorts & Cruise Lines0.56%+0.05 ppAutomotive Retail0.20%+0.03 ppCasinos & Gaming0.08%-0.03 ppFootwear0.02%-0.02 ppConsumer Electronics0.07%-0.02 ppDistributors0.02%-0.02 ppComputer & Electronics Retail0.02%-0.02 ppHomefurnishing Retail0.03%-0.02 ppAutomotive Parts & Equipment0.02%-0.01 ppLeisure Products0.02%-0.00 pp
3 · Sub-industry
Inside Automotive Retail
Automotive Retail · weight
0.20%
Industry change · 12M
+0.03 pp
Automotive Retail · contribution
+0.032 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 2026 · 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 | $83.3bn | 0.113% | -0.046 pp | +0.100 pp | +5.4% | No |
| AutoZone → AZO | United States | $61.0bn | 0.083% | -0.035 pp | -0.068 pp | -1.6% | 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.