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 & Peripherals9.19%-0.77 ppSystems Software7.60%-0.34 ppIT Consulting & Other Services1.22%-0.14 ppSemiconductor Materials & Equipment0.45%-0.05 ppApplication Software3.32%+0.04 ppInternet Services & Infrastructure0.12%-0.03 ppElectronic Equipment & Instruments0.39%-0.03 ppCommunications Equipment0.97%-0.03 ppTechnology Distributors0.09%+0.01 ppSemiconductors3.62%-0.01 ppElectronic Manufacturing Services0.14%-0.00 ppElectronic Components0.14%+0.00 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.62%
Industry change · 12M
-0.01 pp
Semiconductors · contribution
-0.007 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 2023 · 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 | $135.2bn | 0.461% | +0.068 pp | -0.218 pp | -31.2% | Yes |
| ON Semiconductor → ON | United States | $35.6bn | 0.121% | +0.024 pp | +0.121 pp | +31.5% | Yes |
| Advanced Micro Devices → AMD | United States | $157.9bn | 0.539% | +0.162 pp | +0.097 pp | -10.4% | Yes |
| Qualcomm → QCOM | United States | $142.3bn | 0.485% | +0.041 pp | -0.094 pp | -14.5% | Yes |
| First Solar → FSLR | United States | $23.2bn | 0.079% | +0.021 pp | +0.079 pp | +159.7% | Yes |
| Micron Technology → MU | United States | $66.0bn | 0.225% | +0.029 pp | -0.067 pp | -21.9% | Yes |
| Analog Devices → ADI | United States | $99.8bn | 0.340% | +0.039 pp | +0.049 pp | +21.6% | Yes |
| Microchip Technology → MCHP | United States | $45.9bn | 0.157% | +0.017 pp | +0.016 pp | +13.4% | Yes |
| Skyworks Solutions → SWKS | United States | $18.8bn | 0.064% | +0.011 pp | -0.010 pp | -9.4% | Yes |
| Texas Instruments → TXN | United States | $168.6bn | 0.575% | +0.034 pp | +0.005 pp | +4.3% | Yes |
| Monolithic Power Systems → MPWR | United States | $23.7bn | 0.081% | +0.021 pp | +0.005 pp | +3.9% | Yes |
| Broadcom → AVGO | United States | $26.7bn | 0.091% | +0.007 pp | +0.005 pp | +5.2% | Yes |
| Nvidia → NVDA | United States | $68.6bn | 0.234% | +0.104 pp | +0.004 pp | +1.9% | Yes |
| NXP Semiconductors → NXPI | United States | $48.4bn | 0.165% | +0.017 pp | +0.002 pp | +2.9% | 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.