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
Systems Software8.56%+1.53 ppTechnology Hardware, Storage & Peripherals9.55%+0.61 ppSemiconductors4.03%+0.58 ppApplication Software4.20%+0.53 ppSemiconductor Materials & Equipment0.59%+0.14 ppCommunications Equipment0.98%+0.04 ppElectronic Equipment & Instruments0.46%+0.03 ppInternet Services & Infrastructure0.15%-0.02 ppElectronic Manufacturing Services0.17%+0.01 ppTechnology Distributors0.09%+0.01 ppIT Consulting & Other Services1.35%-0.01 ppElectronic Components0.15%+0.01 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
4.03%
Industry change · 12M
+0.58 pp
Semiconductors · contribution
+0.579 pp
Company participation
75%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 2021 · 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 | $81.7bn | 0.276% | +0.089 pp | +0.241 pp | +144.1% | Yes |
| NXP Semiconductors → NXPI | United States | $59.4bn | 0.201% | +0.010 pp | +0.201 pp | +42.5% | Yes |
| Advanced Micro Devices → AMD | United States | $191.2bn | 0.646% | +0.197 pp | +0.173 pp | +70.9% | Yes |
| Intel → INTC | United States | $200.1bn | 0.676% | -0.057 pp | -0.165 pp | +4.4% | No |
| Monolithic Power Systems → MPWR | United States | $25.5bn | 0.086% | +0.010 pp | +0.086 pp | +74.0% | Yes |
| Microchip Technology → MCHP | United States | $46.3bn | 0.156% | +0.084 pp | +0.082 pp | +25.6% | Yes |
| Texas Instruments → TXN | United States | $177.7bn | 0.600% | +0.011 pp | -0.028 pp | +22.1% | No |
| Qualcomm → QCOM | United States | $202.2bn | 0.683% | +0.130 pp | -0.024 pp | +25.0% | Yes |
| Skyworks Solutions → SWKS | United States | $25.1bn | 0.085% | -0.017 pp | -0.015 pp | +8.8% | No |
| Micron Technology → MU | United States | $94.0bn | 0.317% | +0.040 pp | +0.014 pp | +31.2% | Yes |
| Broadcom → AVGO | United States | $22.8bn | 0.077% | +0.009 pp | +0.008 pp | +42.3% | Yes |
| Analog Devices → ADI | United States | $66.4bn | 0.224% | +0.024 pp | +0.006 pp | +31.8% | 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.