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
Semiconductors17.29%+3.19 ppTechnology Hardware, Storage & Peripherals8.93%+1.44 ppApplication Software2.00%-1.38 ppSemiconductor Materials & Equipment1.75%+1.16 ppSystems Software7.68%-0.69 ppCommunications Equipment1.54%+0.41 ppIT Consulting & Other Services0.64%-0.29 ppElectronic Components0.47%+0.21 ppElectronic Manufacturing Services0.22%+0.05 ppInternet Services & Infrastructure0.09%-0.03 ppElectronic Equipment & Instruments0.24%-0.02 ppTechnology Distributors0.03%-0.01 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
17.29%
Industry change · 12M
+3.19 pp
Semiconductors · contribution
+3.190 pp
Company participation
33%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 2026 · 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 |
|---|---|---|---|---|---|---|---|
| Micron Technology → MU | United States | $1082.8bn | 1.803% | -0.094 pp | +1.527 pp | +706.9% | Yes |
| Advanced Micro Devices → AMD | United States | $768.4bn | 1.280% | -0.179 pp | +0.733 pp | +189.4% | Yes |
| Intel → INTC | United States | $451.5bn | 0.752% | -0.247 pp | +0.531 pp | +267.6% | No |
| Marvell Technology → MRVL | United States | $185.6bn | 0.309% | +0.309 pp | +0.309 pp | +237.4% | Yes |
| Nvidia → NVDA | United States | $5320.8bn | 8.861% | +0.007 pp | +0.087 pp | +26.9% | Yes |
| Qualcomm → QCOM | United States | $179.0bn | 0.298% | -0.160 pp | -0.061 pp | +8.3% | No |
| Analog Devices → ADI | United States | $175.5bn | 0.292% | -0.057 pp | +0.036 pp | +46.0% | No |
| Broadcom → AVGO | United States | $1761.9bn | 2.934% | -0.731 pp | +0.035 pp | +25.4% | No |
| NXP Semiconductors → NXPI | United States | $56.7bn | 0.094% | -0.046 pp | -0.028 pp | -2.6% | No |
| Monolithic Power Systems → MPWR | United States | $62.3bn | 0.104% | -0.030 pp | +0.021 pp | +52.8% | No |
| Texas Instruments → TXN | United States | $238.3bn | 0.397% | -0.085 pp | +0.015 pp | +32.2% | No |
| First Solar → FSLR | United States | $21.7bn | 0.036% | -0.021 pp | -0.007 pp | +3.4% | No |
| Microchip Technology → MCHP | United States | $39.9bn | 0.066% | -0.022 pp | -0.006 pp | +16.0% | No |
| Skyworks Solutions → SWKS | United States | $10.1bn | 0.017% | -0.003 pp | -0.006 pp | -7.7% | Yes |
| ON Semiconductor → ON | United States | $28.8bn | 0.048% | -0.034 pp | +0.006 pp | +49.4% | 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.