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
Semiconductors11.14%+6.88 ppSystems Software7.19%-2.04 ppApplication Software3.31%-0.58 ppCommunications Equipment1.03%+0.22 ppTechnology Hardware, Storage & Peripherals8.43%+0.20 ppIT Consulting & Other Services1.20%-0.19 ppElectronic Components0.19%+0.06 ppElectronic Equipment & Instruments0.29%-0.05 ppTechnology Distributors0.05%-0.04 ppElectronic Manufacturing Services0.14%-0.04 ppInternet Services & Infrastructure0.13%+0.03 ppSemiconductor Materials & Equipment0.57%-0.02 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
11.14%
Industry change · 12M
+6.88 pp
Semiconductors · contribution
+6.876 pp
Company participation
21%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 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 | $3048.1bn | 6.816% | -0.655 pp | +6.250 pp | +57.9% | No |
| Broadcom → AVGO | United States | $934.8bn | 2.091% | +0.420 pp | +1.916 pp | +55.4% | Yes |
| Advanced Micro Devices → AMD | United States | $161.8bn | 0.362% | -0.129 pp | -0.529 pp | -48.1% | No |
| Intel → INTC | United States | $102.8bn | 0.230% | +0.001 pp | -0.292 pp | -44.3% | Yes |
| Qualcomm → QCOM | United States | $173.8bn | 0.389% | +0.000 pp | -0.116 pp | +1.1% | No |
| NXP Semiconductors → NXPI | United States | $54.7bn | 0.122% | -0.006 pp | -0.061 pp | -12.2% | No |
| Microchip Technology → MCHP | United States | $31.7bn | 0.071% | -0.010 pp | -0.059 pp | -28.3% | No |
| Micron Technology → MU | United States | $104.3bn | 0.233% | -0.006 pp | -0.053 pp | +3.8% | No |
| ON Semiconductor → ON | United States | $19.8bn | 0.044% | -0.022 pp | -0.052 pp | -40.4% | No |
| Texas Instruments → TXN | United States | $178.4bn | 0.399% | -0.006 pp | -0.037 pp | +20.4% | No |
| Monolithic Power Systems → MPWR | United States | $29.8bn | 0.067% | +0.006 pp | -0.034 pp | -14.6% | No |
| Skyworks Solutions → SWKS | United States | $10.7bn | 0.024% | -0.007 pp | -0.024 pp | -34.4% | No |
| Analog Devices → ADI | United States | $114.1bn | 0.255% | +0.016 pp | -0.017 pp | +22.0% | Yes |
| First Solar → FSLR | United States | $14.6bn | 0.033% | -0.014 pp | -0.015 pp | -11.5% | 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.