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 & Peripherals9.07%+1.21 ppSystems Software7.47%+0.59 ppApplication Software3.05%-0.52 ppSemiconductors3.74%+0.29 ppSemiconductor Materials & Equipment0.48%-0.11 ppCommunications Equipment0.87%-0.10 ppIT Consulting & Other Services1.35%+0.06 ppInternet Services & Infrastructure0.13%-0.03 ppElectronic Components0.15%-0.02 ppElectronic Equipment & Instruments0.40%-0.02 ppElectronic Manufacturing Services0.15%-0.01 ppTechnology Distributors0.08%-0.00 pp
3 · Sub-industry
Inside Electronic Equipment & Instruments
Electronic Equipment & Instruments · weight
0.40%
Industry change · 12M
-0.02 pp
Electronic Equipment & Instruments · contribution
-0.018 pp
Company participation
25%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 2022 · 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 |
|---|---|---|---|---|---|---|---|
| Zebra Technologies → ZBRA | United States | $17.8bn | 0.064% | -0.012 pp | -0.031 pp | -32.0% | No |
| Teledyne Technologies → TDY | United States | $19.0bn | 0.068% | -0.002 pp | +0.013 pp | -3.4% | No |
| Keysight Technologies → KEYS | United States | $26.5bn | 0.095% | -0.005 pp | +0.001 pp | +2.3% | No |
| Roper Technologies → ROP | United States | $46.9bn | 0.169% | +0.005 pp | -0.001 pp | -1.2% | 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.