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 & Peripherals8.76%+8.76 ppSystems Software7.76%+7.75 ppApplication Software4.02%+4.02 ppSemiconductors3.50%+3.50 ppIT Consulting & Other Services1.34%+1.34 ppCommunications Equipment1.02%+1.02 ppSemiconductor Materials & Equipment0.52%+0.52 ppElectronic Equipment & Instruments0.46%+0.46 ppElectronic Manufacturing Services0.16%+0.16 ppElectronic Components0.15%+0.15 ppInternet Services & Infrastructure0.14%+0.14 ppTechnology Distributors0.09%+0.09 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.50%
Industry change · 12M
+3.50 pp
Semiconductors · contribution
+3.495 pp
Company participation
83%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 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 | $219.3bn | 0.733% | -0.093 pp | +0.732 pp | +8.9% | No |
| Texas Instruments → TXN | United States | $176.3bn | 0.589% | -0.039 pp | +0.589 pp | +37.6% | Yes |
| Qualcomm → QCOM | United States | $165.5bn | 0.553% | +0.010 pp | +0.553 pp | +25.6% | Yes |
| Advanced Micro Devices → AMD | United States | $134.3bn | 0.449% | +0.101 pp | +0.449 pp | +21.9% | Yes |
| Micron Technology → MU | United States | $83.0bn | 0.277% | -0.061 pp | +0.277 pp | +61.9% | No |
| Analog Devices → ADI | United States | $60.0bn | 0.201% | -0.017 pp | +0.200 pp | +41.8% | Yes |
| NXP Semiconductors → NXPI | United States | $57.0bn | 0.191% | -0.018 pp | +0.191 pp | +73.0% | Yes |
| Nvidia → NVDA | United States | $56.0bn | 0.187% | +0.151 pp | +0.187 pp | +67.6% | Yes |
| Skyworks Solutions → SWKS | United States | $30.3bn | 0.101% | +0.001 pp | +0.101 pp | +28.2% | Yes |
| Monolithic Power Systems → MPWR | United States | $22.7bn | 0.076% | +0.020 pp | +0.076 pp | +86.5% | Yes |
| Microchip Technology → MCHP | United States | $21.6bn | 0.072% | -0.005 pp | +0.072 pp | +45.1% | Yes |
| Broadcom → AVGO | United States | $20.4bn | 0.068% | -0.001 pp | +0.068 pp | +48.1% | 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.