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
Systems Software0.01%-5.72 ppSemiconductors0.00%-3.18 ppApplication Software0.00%-3.11 ppTechnology Hardware, Storage & Peripherals0.00%-1.81 ppIT Consulting & Other Services0.00%-1.55 ppCommunications Equipment0.00%-1.31 ppElectronic Equipment & Instruments0.00%-0.29 ppSemiconductor Materials & Equipment0.00%-0.28 ppInternet Services & Infrastructure0.00%-0.20 ppElectronic Manufacturing Services0.00%-0.17 ppElectronic Components0.00%-0.14 ppTechnology Distributors0.00%-0.09 pp
3 · Sub-industry
Inside Electronic Equipment & Instruments
Electronic Equipment & Instruments · weight
0.00%
Industry change · 12M
-0.29 pp
Electronic Equipment & Instruments · contribution
-0.293 pp
Company participation
25%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 2020 · 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 | $41.4bn | 0.000% | -0.000 pp | -0.197 pp | +11.4% | No |
| Keysight Technologies → KEYS | United States | $18.5bn | 0.000% | -0.000 pp | -0.097 pp | +1.6% | No |
| Zebra Technologies → ZBRA | United States | $13.5bn | 0.000% | -0.000 pp | +0.000 pp | +22.3% | No |
| Teledyne Technologies → TDY | United States | $11.4bn | 0.000% | -0.000 pp | +0.000 pp | -3.7% | 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.