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
Application Software2.82%-1.14 ppSystems Software7.08%-0.53 ppTechnology Hardware, Storage & Peripherals9.01%+0.44 ppSemiconductors3.07%-0.44 ppSemiconductor Materials & Equipment0.36%-0.16 ppCommunications Equipment0.86%-0.13 ppIT Consulting & Other Services1.27%-0.09 ppElectronic Equipment & Instruments0.38%-0.06 ppElectronic Manufacturing Services0.14%-0.02 ppInternet Services & Infrastructure0.12%-0.02 ppElectronic Components0.14%-0.01 ppTechnology Distributors0.08%-0.00 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.07%
Industry change · 12M
-0.44 pp
Semiconductors · contribution
-0.438 pp
Company participation
15%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 2022 · 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 | $105.8bn | 0.416% | -0.179 pp | -0.343 pp | -50.0% | No |
| ON Semiconductor → ON | United States | $27.0bn | 0.106% | +0.021 pp | +0.106 pp | +36.2% | Yes |
| Texas Instruments → TXN | United States | $141.4bn | 0.556% | +0.005 pp | -0.067 pp | -17.3% | No |
| Analog Devices → ADI | United States | $71.7bn | 0.282% | -0.014 pp | +0.065 pp | -15.3% | No |
| Micron Technology → MU | United States | $55.3bn | 0.217% | -0.023 pp | -0.063 pp | -29.1% | No |
| Nvidia → NVDA | United States | $30.2bn | 0.119% | -0.029 pp | -0.063 pp | -41.4% | No |
| Microchip Technology → MCHP | United States | $33.7bn | 0.133% | +0.007 pp | +0.059 pp | -19.3% | Yes |
| Skyworks Solutions → SWKS | United States | $13.7bn | 0.054% | -0.004 pp | -0.042 pp | -47.3% | No |
| Advanced Micro Devices → AMD | United States | $102.3bn | 0.402% | -0.080 pp | -0.036 pp | -38.4% | No |
| NXP Semiconductors → NXPI | United States | $38.7bn | 0.152% | +0.001 pp | -0.030 pp | -23.3% | No |
| Qualcomm → QCOM | United States | $126.9bn | 0.499% | -0.058 pp | -0.012 pp | -10.7% | No |
| Monolithic Power Systems → MPWR | United States | $17.0bn | 0.067% | -0.003 pp | -0.011 pp | -24.5% | No |
| Broadcom → AVGO | United States | $18.0bn | 0.071% | -0.006 pp | +0.001 pp | -5.7% | 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.