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
Semiconductors15.05%+3.50 ppApplication Software2.91%-0.61 ppTechnology Hardware, Storage & Peripherals8.57%+0.37 ppSystems Software7.72%+0.34 ppSemiconductor Materials & Equipment0.90%+0.31 ppCommunications Equipment1.07%+0.26 ppIT Consulting & Other Services0.99%-0.16 ppElectronic Components0.31%+0.12 ppElectronic Equipment & Instruments0.23%-0.06 ppElectronic Manufacturing Services0.17%+0.04 ppInternet Services & Infrastructure0.11%-0.03 ppTechnology Distributors0.04%-0.01 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
15.05%
Industry change · 12M
+3.50 pp
Semiconductors · contribution
+3.501 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 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 |
|---|---|---|---|---|---|---|---|
| Broadcom → AVGO | United States | $1902.9bn | 3.738% | +0.838 pp | +2.067 pp | +151.1% | Yes |
| Nvidia → NVDA | United States | $4301.1bn | 8.449% | -0.325 pp | +0.978 pp | +28.1% | No |
| Micron Technology → MU | United States | $265.4bn | 0.521% | +0.245 pp | +0.282 pp | +142.4% | Yes |
| Advanced Micro Devices → AMD | United States | $354.1bn | 0.696% | +0.149 pp | +0.204 pp | +58.6% | Yes |
| Intel → INTC | United States | $193.5bn | 0.380% | +0.159 pp | +0.151 pp | +68.6% | Yes |
| Texas Instruments → TXN | United States | $152.9bn | 0.300% | -0.081 pp | -0.104 pp | -13.6% | No |
| Qualcomm → QCOM | United States | $180.0bn | 0.354% | -0.006 pp | -0.035 pp | +8.4% | No |
| NXP Semiconductors → NXPI | United States | $49.1bn | 0.096% | -0.026 pp | -0.032 pp | -13.4% | No |
| ON Semiconductor → ON | United States | $20.2bn | 0.040% | -0.002 pp | -0.027 pp | -29.4% | No |
| Monolithic Power Systems → MPWR | United States | $44.5bn | 0.087% | +0.004 pp | +0.026 pp | +64.9% | Yes |
| Microchip Technology → MCHP | United States | $29.0bn | 0.057% | -0.016 pp | -0.024 pp | -18.9% | No |
| Analog Devices → ADI | United States | $129.9bn | 0.255% | -0.001 pp | +0.016 pp | +23.8% | Yes |
| Skyworks Solutions → SWKS | United States | $9.8bn | 0.019% | -0.004 pp | -0.012 pp | -20.9% | No |
| First Solar → FSLR | United States | $29.3bn | 0.058% | +0.014 pp | +0.010 pp | +37.0% | 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.