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 & Peripherals8.63%+8.63 ppSystems Software7.50%+7.49 ppApplication Software3.84%+3.84 ppSemiconductors3.43%+3.43 ppIT Consulting & Other Services1.32%+1.32 ppCommunications Equipment0.98%+0.98 ppSemiconductor Materials & Equipment0.56%+0.56 ppElectronic Equipment & Instruments0.44%+0.44 ppElectronic Manufacturing Services0.17%+0.17 ppElectronic Components0.16%+0.16 ppInternet Services & Infrastructure0.15%+0.15 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
+0.440 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 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 | $51.7bn | 0.177% | +0.008 pp | +0.177 pp | +14.2% | Yes |
| Keysight Technologies → KEYS | United States | $30.3bn | 0.104% | +0.007 pp | +0.104 pp | +64.7% | Yes |
| Zebra Technologies → ZBRA | United States | $29.6bn | 0.101% | +0.007 pp | +0.101 pp | +96.8% | Yes |
| Teledyne Technologies → TDY | United States | $16.8bn | 0.058% | -0.003 pp | +0.057 pp | +47.6% | 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.