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
Technology Hardware, Storage & Peripherals7.09%-1.98 ppSystems Software6.25%-1.23 ppSemiconductors2.67%-1.07 ppIT Consulting & Other Services0.92%-0.44 ppApplication Software2.61%-0.43 ppCommunications Equipment0.67%-0.20 ppElectronic Equipment & Instruments0.27%-0.13 ppSemiconductor Materials & Equipment0.35%-0.13 ppElectronic Manufacturing Services0.10%-0.05 ppElectronic Components0.09%-0.05 ppInternet Services & Infrastructure0.09%-0.04 ppTechnology Distributors0.06%-0.03 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
2.67%
Industry change · 12M
-1.07 pp
Semiconductors · contribution
-1.070 pp
Company participation
14%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 2023 · 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 |
|---|---|---|---|---|---|---|---|
| Intel → INTC | United States | $131.1bn | 0.324% | -0.039 pp | -0.330 pp | -26.4% | No |
| Qualcomm → QCOM | United States | $126.3bn | 0.312% | -0.172 pp | -0.266 pp | -18.4% | No |
| Texas Instruments → TXN | United States | $157.8bn | 0.390% | -0.156 pp | -0.197 pp | +1.3% | No |
| Advanced Micro Devices → AMD | United States | $190.4bn | 0.470% | +0.025 pp | -0.124 pp | +16.1% | Yes |
| Micron Technology → MU | United States | $74.6bn | 0.184% | -0.037 pp | -0.113 pp | -6.9% | No |
| Analog Devices → ADI | United States | $89.1bn | 0.220% | -0.106 pp | -0.095 pp | +7.0% | No |
| ON Semiconductor → ON | United States | $36.1bn | 0.089% | -0.028 pp | +0.089 pp | +37.8% | No |
| NXP Semiconductors → NXPI | United States | $46.5bn | 0.115% | -0.048 pp | -0.065 pp | -3.6% | No |
| Nvidia → NVDA | United States | $93.5bn | 0.231% | +0.029 pp | +0.063 pp | +102.8% | Yes |
| First Solar → FSLR | United States | $21.7bn | 0.054% | -0.010 pp | +0.054 pp | +187.4% | No |
| Microchip Technology → MCHP | United States | $41.0bn | 0.101% | -0.055 pp | -0.044 pp | +5.5% | No |
| Skyworks Solutions → SWKS | United States | $16.5bn | 0.041% | -0.022 pp | -0.022 pp | -2.6% | No |
| Monolithic Power Systems → MPWR | United States | $23.2bn | 0.057% | -0.023 pp | -0.018 pp | +9.7% | No |
| Broadcom → AVGO | United States | $33.7bn | 0.083% | -0.004 pp | -0.002 pp | +43.8% | 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.