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
Technology Hardware, Storage & Peripherals4.28%+4.27 ppSystems Software3.58%+3.57 ppSemiconductors1.83%+1.83 ppApplication Software1.78%+1.78 ppIT Consulting & Other Services0.63%+0.63 ppCommunications Equipment0.46%+0.46 ppSemiconductor Materials & Equipment0.29%+0.29 ppElectronic Equipment & Instruments0.21%+0.21 ppElectronic Manufacturing Services0.09%+0.09 ppInternet Services & Infrastructure0.07%+0.07 ppElectronic Components0.07%+0.07 ppTechnology Distributors0.04%+0.04 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
1.83%
Industry change · 12M
+1.83 pp
Semiconductors · contribution
+1.830 pp
Company participation
9%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 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 |
|---|---|---|---|---|---|---|---|
| Intel → INTC | United States | $246.9bn | 0.494% | -0.348 pp | +0.493 pp | +12.3% | No |
| Texas Instruments → TXN | United States | $158.5bn | 0.317% | -0.312 pp | +0.316 pp | +55.2% | No |
| Qualcomm → QCOM | United States | $154.7bn | 0.309% | -0.398 pp | +0.309 pp | +78.4% | No |
| Micron Technology → MU | United States | $102.4bn | 0.205% | -0.098 pp | +0.204 pp | +74.1% | No |
| Advanced Micro Devices → AMD | United States | $102.4bn | 0.205% | -0.269 pp | +0.204 pp | +85.8% | No |
| Analog Devices → ADI | United States | $57.5bn | 0.115% | -0.103 pp | +0.115 pp | +45.7% | No |
| Skyworks Solutions → SWKS | United States | $29.3bn | 0.059% | -0.041 pp | +0.059 pp | +79.9% | No |
| Microchip Technology → MCHP | United States | $20.5bn | 0.041% | -0.033 pp | +0.041 pp | +70.5% | No |
| Broadcom → AVGO | United States | $19.1bn | 0.038% | -0.031 pp | +0.038 pp | +80.2% | No |
| Monolithic Power Systems → MPWR | United States | $16.9bn | 0.034% | +0.034 pp | +0.034 pp | +138.1% | Yes |
| Nvidia → NVDA | United States | $8.5bn | 0.017% | -0.018 pp | +0.017 pp | +103.3% | 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.