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 & Peripherals9.50%+7.43 ppSystems Software6.96%+0.91 ppApplication Software3.63%+0.57 ppCommunications Equipment0.93%-0.25 ppSemiconductor Materials & Equipment0.44%+0.13 ppIT Consulting & Other Services1.34%-0.11 ppElectronic Equipment & Instruments0.42%+0.08 ppSemiconductors3.42%+0.06 ppTechnology Distributors0.08%-0.02 ppInternet Services & Infrastructure0.17%-0.01 ppElectronic Manufacturing Services0.16%+0.00 ppElectronic Components0.13%+0.00 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.42%
Industry change · 12M
+0.06 pp
Semiconductors · contribution
+0.060 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Dec 2020 · 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 | $204.2bn | 0.826% | +0.825 pp | -0.451 pp | -14.7% | Yes |
| Qualcomm → QCOM | United States | $172.3bn | 0.697% | +0.697 pp | +0.203 pp | +77.1% | Yes |
| Advanced Micro Devices → AMD | United States | $110.3bn | 0.446% | +0.446 pp | +0.196 pp | +100.0% | Yes |
| Micron Technology → MU | United States | $83.7bn | 0.339% | +0.338 pp | +0.046 pp | +39.8% | Yes |
| Texas Instruments → TXN | United States | $150.7bn | 0.610% | +0.609 pp | +0.021 pp | +31.7% | Yes |
| Nvidia → NVDA | United States | $8.1bn | 0.033% | +0.033 pp | +0.015 pp | +122.3% | Yes |
| Microchip Technology → MCHP | United States | $18.0bn | 0.073% | +0.073 pp | +0.011 pp | +33.7% | Yes |
| Broadcom → AVGO | United States | $17.8bn | 0.072% | +0.072 pp | +0.010 pp | +44.9% | Yes |
| Analog Devices → ADI | United States | $54.6bn | 0.221% | +0.221 pp | +0.006 pp | +26.9% | Yes |
| Skyworks Solutions → SWKS | United States | $25.4bn | 0.103% | +0.103 pp | +0.002 pp | +28.4% | 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.