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
Universe›Information Technology›Electronic Equipment & Instruments›Electronic Equipment & Instruments
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Information Technology
Technology Hardware, Storage & Peripherals8.57%+8.57 ppSystems Software7.61%+7.60 ppApplication Software3.96%+3.96 ppSemiconductors3.51%+3.51 ppIT Consulting & Other Services1.36%+1.36 ppCommunications Equipment0.99%+0.99 ppSemiconductor Materials & Equipment0.52%+0.52 ppElectronic Equipment & Instruments0.44%+0.44 ppElectronic Manufacturing Services0.16%+0.16 ppElectronic Components0.15%+0.15 ppInternet Services & Infrastructure0.14%+0.14 ppTechnology Distributors0.09%+0.09 pp
3 · Sub-industry
Inside Electronic Equipment & Instruments
Electronic Equipment & Instruments · weight
0.44%
Industry change · 12M
+0.44 pp
Electronic Equipment & Instruments · contribution
+0.438 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 |
|---|---|---|---|---|---|---|---|
| Roper Technologies → ROP | United States | $47.0bn | 0.165% | -0.010 pp | +0.165 pp | +13.5% | No |
| Keysight Technologies → KEYS | United States | $30.3bn | 0.106% | +0.006 pp | +0.106 pp | +66.3% | Yes |
| Zebra Technologies → ZBRA | United States | $27.5bn | 0.097% | -0.003 pp | +0.097 pp | +104.2% | No |
| Teledyne Technologies → TDY | United States | $20.0bn | 0.070% | +0.015 pp | +0.070 pp | +38.5% | 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.