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
Semiconductors15.34%+4.26 ppApplication Software2.45%-1.03 ppSemiconductor Materials & Equipment1.19%+0.57 ppSystems Software6.78%-0.52 ppIT Consulting & Other Services0.97%-0.28 ppCommunications Equipment1.09%+0.26 ppTechnology Hardware, Storage & Peripherals7.94%-0.21 ppElectronic Components0.34%+0.14 ppElectronic Equipment & Instruments0.23%-0.08 ppInternet Services & Infrastructure0.10%-0.05 ppElectronic Manufacturing Services0.17%+0.04 ppTechnology Distributors0.03%-0.03 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
15.34%
Industry change · 12M
+4.26 pp
Semiconductors · contribution
+4.257 pp
Company participation
64%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 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 |
|---|---|---|---|---|---|---|---|
| Nvidia → NVDA | United States | $4644.5bn | 8.886% | -0.753 pp | +2.348 pp | +59.2% | No |
| Broadcom → AVGO | United States | $1570.8bn | 3.005% | -0.414 pp | +0.699 pp | +51.1% | No |
| Micron Technology → MU | United States | $467.0bn | 0.893% | +0.401 pp | +0.667 pp | +356.2% | Yes |
| Advanced Micro Devices → AMD | United States | $385.4bn | 0.737% | -0.077 pp | +0.319 pp | +104.2% | Yes |
| Intel → INTC | United States | $232.1bn | 0.444% | +0.101 pp | +0.257 pp | +139.2% | Yes |
| Qualcomm → QCOM | United States | $162.4bn | 0.311% | -0.072 pp | -0.117 pp | -10.4% | No |
| Analog Devices → ADI | United States | $152.2bn | 0.291% | +0.066 pp | +0.057 pp | +49.1% | Yes |
| Monolithic Power Systems → MPWR | United States | $53.9bn | 0.103% | +0.009 pp | +0.034 pp | +77.8% | Yes |
| Skyworks Solutions → SWKS | United States | $8.4bn | 0.016% | -0.007 pp | -0.016 pp | -34.5% | No |
| Microchip Technology → MCHP | United States | $41.0bn | 0.079% | +0.013 pp | +0.014 pp | +44.2% | Yes |
| NXP Semiconductors → NXPI | United States | $56.9bn | 0.109% | +0.006 pp | -0.009 pp | +10.5% | Yes |
| First Solar → FSLR | United States | $24.2bn | 0.046% | -0.010 pp | +0.006 pp | +34.6% | No |
| ON Semiconductor → ON | United States | $24.1bn | 0.046% | +0.006 pp | -0.003 pp | +14.4% | Yes |
| Texas Instruments → TXN | United States | $195.9bn | 0.375% | +0.087 pp | +0.000 pp | +20.4% | 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.