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
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Information Technology
Semiconductors1.74%-1.48 ppSystems Software2.88%-1.39 ppApplication Software1.76%-1.03 ppIT Consulting & Other Services0.89%-0.85 ppTechnology Hardware, Storage & Peripherals1.03%-0.67 ppCommunications Equipment0.82%-0.49 ppSemiconductor Materials & Equipment0.13%-0.22 ppElectronic Manufacturing Services0.09%-0.12 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 Semiconductors
Semiconductors · weight
1.74%
Industry change · 12M
-1.48 pp
Semiconductors · contribution
-1.478 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 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 |
|---|---|---|---|---|---|---|---|
| Intel → INTC | United States | $225.1bn | 0.748% | +0.027 pp | -0.537 pp | +5.0% | No |
| Qualcomm → QCOM | United States | $70.6bn | 0.235% | -0.091 pp | -0.342 pp | -12.2% | No |
| Texas Instruments → TXN | United States | $95.9bn | 0.319% | -0.034 pp | -0.298 pp | -7.1% | No |
| Micron Technology → MU | United States | $43.7bn | 0.145% | -0.051 pp | -0.143 pp | -11.8% | No |
| Analog Devices → ADI | United States | $34.0bn | 0.113% | -0.006 pp | -0.080 pp | +2.1% | No |
| Skyworks Solutions → SWKS | United States | $12.9bn | 0.043% | -0.010 pp | -0.059 pp | -24.0% | No |
| Microchip Technology → MCHP | United States | $8.9bn | 0.029% | -0.003 pp | -0.034 pp | -19.8% | No |
| Broadcom → AVGO | United States | $9.8bn | 0.033% | +0.002 pp | +0.033 pp | -0.8% | No |
| Nvidia → NVDA | United States | $2.5bn | 0.008% | -0.005 pp | -0.013 pp | -33.3% | No |
| Advanced Micro Devices → AMD | United States | $21.3bn | 0.071% | -0.008 pp | -0.005 pp | +55.0% | 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.