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
Semiconductors10.66%+6.47 ppSystems Software7.68%-1.10 ppApplication Software3.26%-0.33 ppCommunications Equipment1.01%+0.21 ppElectronic Components0.20%+0.07 ppInternet Services & Infrastructure0.16%+0.06 ppTechnology Hardware, Storage & Peripherals7.95%+0.06 ppElectronic Equipment & Instruments0.29%-0.04 ppTechnology Distributors0.05%-0.04 ppSemiconductor Materials & Equipment0.57%-0.02 ppElectronic Manufacturing Services0.14%-0.02 ppIT Consulting & Other Services1.16%-0.02 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
10.66%
Industry change · 12M
+6.47 pp
Semiconductors · contribution
+6.472 pp
Company participation
14%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 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 | $2657.7bn | 6.382% | -0.157 pp | +5.756 pp | +26.1% | No |
| Broadcom → AVGO | United States | $905.0bn | 2.173% | -0.133 pp | +1.999 pp | +49.8% | Yes |
| Advanced Micro Devices → AMD | United States | $157.8bn | 0.379% | -0.040 pp | -0.362 pp | -38.5% | No |
| Intel → INTC | United States | $87.7bn | 0.211% | +0.023 pp | -0.165 pp | -33.3% | No |
| Micron Technology → MU | United States | $86.0bn | 0.206% | -0.020 pp | -0.156 pp | -31.6% | No |
| Qualcomm → QCOM | United States | $163.0bn | 0.391% | -0.036 pp | -0.145 pp | -8.7% | No |
| Texas Instruments → TXN | United States | $145.4bn | 0.349% | -0.025 pp | -0.116 pp | -5.9% | No |
| Microchip Technology → MCHP | United States | $24.8bn | 0.060% | -0.005 pp | -0.084 pp | -48.7% | No |
| NXP Semiconductors → NXPI | United States | $46.6bn | 0.112% | -0.006 pp | -0.078 pp | -26.8% | No |
| Analog Devices → ADI | United States | $96.7bn | 0.232% | -0.002 pp | -0.056 pp | -1.2% | No |
| ON Semiconductor → ON | United States | $16.7bn | 0.040% | -0.009 pp | -0.047 pp | -43.4% | No |
| Monolithic Power Systems → MPWR | United States | $28.4bn | 0.068% | -0.001 pp | -0.026 pp | -10.7% | Yes |
| Skyworks Solutions → SWKS | United States | $10.3bn | 0.025% | -0.007 pp | -0.025 pp | -37.7% | No |
| First Solar → FSLR | United States | $13.5bn | 0.032% | -0.007 pp | -0.022 pp | -28.6% | 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.