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
Semiconductors1.76%-1.46 ppSystems Software2.84%-1.43 ppApplication Software1.72%-1.07 ppIT Consulting & Other Services0.85%-0.90 ppTechnology Hardware, Storage & Peripherals0.97%-0.72 ppCommunications Equipment0.80%-0.51 ppSemiconductor Materials & Equipment0.12%-0.23 ppElectronic Manufacturing Services0.09%-0.11 ppElectronic Components0.10%-0.08 ppInternet Services & Infrastructure0.10%-0.03 ppElectronic Equipment & Instruments0.14%-0.02 ppTechnology Distributors0.00%+0.00 pp
3 · Sub-industry
Inside Electronic Equipment & Instruments
Electronic Equipment & Instruments · weight
0.14%
Industry change · 12M
-0.02 pp
Electronic Equipment & Instruments · contribution
-0.024 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Dec 2018 · 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 | $27.6bn | 0.099% | +0.001 pp | -0.065 pp | -4.6% | No |
| Keysight Technologies → KEYS | United States | $11.6bn | 0.042% | +0.042 pp | +0.042 pp | +32.9% | 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.