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 & Peripherals4.23%+4.22 ppSystems Software3.55%+3.55 ppSemiconductors1.93%+1.92 ppApplication Software1.77%+1.76 ppIT Consulting & Other Services0.68%+0.68 ppCommunications Equipment0.52%+0.52 ppSemiconductor Materials & Equipment0.31%+0.31 ppElectronic Equipment & Instruments0.22%+0.22 ppElectronic Manufacturing Services0.08%+0.08 ppInternet Services & Infrastructure0.08%+0.08 ppElectronic Components0.08%+0.07 ppTechnology Distributors0.05%+0.05 pp
3 · Sub-industry
Inside Electronic Equipment & Instruments
Electronic Equipment & Instruments · weight
0.22%
Industry change · 12M
+0.22 pp
Electronic Equipment & Instruments · contribution
+0.215 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 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 | $42.3bn | 0.083% | -0.100 pp | +0.083 pp | +30.1% | No |
| Keysight Technologies → KEYS | United States | $26.7bn | 0.052% | -0.047 pp | +0.052 pp | +71.4% | No |
| Zebra Technologies → ZBRA | United States | $25.9bn | 0.051% | -0.032 pp | +0.051 pp | +164.3% | No |
| Teledyne Technologies → TDY | United States | $15.3bn | 0.030% | -0.029 pp | +0.030 pp | +39.1% | 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.