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
Semiconductors12.18%+8.17 ppSystems Software7.54%-1.19 ppTechnology Hardware, Storage & Peripherals8.85%-0.38 ppApplication Software3.51%-0.29 ppIT Consulting & Other Services1.14%-0.19 ppElectronic Equipment & Instruments0.28%-0.08 ppSemiconductor Materials & Equipment0.58%+0.07 ppElectronic Components0.19%+0.07 ppElectronic Manufacturing Services0.13%-0.05 ppTechnology Distributors0.05%-0.04 ppCommunications Equipment0.82%-0.03 ppInternet Services & Infrastructure0.14%+0.02 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
12.18%
Industry change · 12M
+8.17 pp
Semiconductors · contribution
+8.173 pp
Company participation
14%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Dec 2024 · 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 | $3288.8bn | 7.458% | +0.523 pp | +7.093 pp | +171.2% | Yes |
| Broadcom → AVGO | United States | $1086.7bn | 2.464% | +0.589 pp | +2.308 pp | +110.5% | Yes |
| Intel → INTC | United States | $86.5bn | 0.196% | -0.037 pp | -0.436 pp | -59.6% | No |
| Advanced Micro Devices → AMD | United States | $196.0bn | 0.444% | -0.174 pp | -0.266 pp | -18.1% | No |
| Qualcomm → QCOM | United States | $170.7bn | 0.387% | -0.054 pp | -0.093 pp | +8.3% | No |
| Microchip Technology → MCHP | United States | $30.8bn | 0.070% | -0.030 pp | -0.076 pp | -35.0% | No |
| Texas Instruments → TXN | United States | $171.1bn | 0.388% | -0.051 pp | -0.074 pp | +13.1% | No |
| Micron Technology → MU | United States | $93.8bn | 0.213% | -0.055 pp | -0.068 pp | -1.0% | No |
| NXP Semiconductors → NXPI | United States | $52.8bn | 0.120% | -0.023 pp | -0.057 pp | -8.0% | No |
| Analog Devices → ADI | United States | $105.4bn | 0.239% | -0.027 pp | -0.055 pp | +8.8% | No |
| ON Semiconductor → ON | United States | $26.8bn | 0.061% | -0.012 pp | -0.046 pp | -24.5% | No |
| Monolithic Power Systems → MPWR | United States | $28.9bn | 0.065% | -0.039 pp | -0.025 pp | -5.6% | No |
| Skyworks Solutions → SWKS | United States | $14.2bn | 0.032% | -0.005 pp | -0.021 pp | -18.9% | No |
| First Solar → FSLR | United States | $18.9bn | 0.043% | -0.019 pp | -0.012 pp | +2.3% | 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.