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
Semiconductors11.08%+7.06 ppSystems Software7.30%-1.93 ppTechnology Hardware, Storage & Peripherals8.15%-0.66 ppApplication Software3.47%-0.48 ppIT Consulting & Other Services1.26%-0.15 ppSemiconductor Materials & Equipment0.62%+0.12 ppElectronic Components0.19%+0.07 ppElectronic Equipment & Instruments0.30%-0.04 ppElectronic Manufacturing Services0.14%-0.04 ppTechnology Distributors0.06%-0.03 ppInternet Services & Infrastructure0.15%+0.03 ppCommunications Equipment0.83%-0.03 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
11.08%
Industry change · 12M
+7.06 pp
Semiconductors · contribution
+7.059 pp
Company participation
14%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 2025 · 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 |
|---|---|---|---|---|---|---|---|
| Nvidia → NVDA | United States | $2940.5bn | 6.538% | -1.116 pp | +6.086 pp | +95.2% | No |
| Broadcom → AVGO | United States | $1037.2bn | 2.306% | +0.443 pp | +2.142 pp | +90.0% | Yes |
| Advanced Micro Devices → AMD | United States | $188.2bn | 0.418% | -0.131 pp | -0.387 pp | -30.9% | No |
| Intel → INTC | United States | $84.1bn | 0.187% | -0.029 pp | -0.354 pp | -54.3% | No |
| Microchip Technology → MCHP | United States | $29.2bn | 0.065% | -0.028 pp | -0.072 pp | -34.8% | No |
| Qualcomm → QCOM | United States | $192.1bn | 0.427% | +0.001 pp | -0.066 pp | +18.7% | Yes |
| Texas Instruments → TXN | United States | $168.4bn | 0.374% | -0.061 pp | -0.058 pp | +18.5% | No |
| Micron Technology → MU | United States | $101.7bn | 0.226% | -0.034 pp | -0.055 pp | +6.9% | No |
| Analog Devices → ADI | United States | $105.2bn | 0.234% | -0.027 pp | -0.050 pp | +12.0% | No |
| NXP Semiconductors → NXPI | United States | $53.0bn | 0.118% | -0.023 pp | -0.044 pp | +0.7% | No |
| ON Semiconductor → ON | United States | $22.3bn | 0.050% | -0.021 pp | -0.042 pp | -26.4% | No |
| Skyworks Solutions → SWKS | United States | $14.3bn | 0.032% | -0.001 pp | -0.018 pp | -12.6% | No |
| Monolithic Power Systems → MPWR | United States | $31.1bn | 0.069% | -0.018 pp | -0.017 pp | +6.5% | No |
| First Solar → FSLR | United States | $17.9bn | 0.040% | -0.009 pp | -0.007 pp | +14.5% | 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.