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 & Peripherals7.86%+7.86 ppSystems Software6.89%+6.88 ppApplication Software3.57%+3.56 ppSemiconductors3.45%+3.45 ppIT Consulting & Other Services1.29%+1.29 ppCommunications Equipment0.97%+0.97 ppSemiconductor Materials & Equipment0.58%+0.58 ppElectronic Equipment & Instruments0.41%+0.41 ppElectronic Components0.17%+0.17 ppElectronic Manufacturing Services0.16%+0.16 ppInternet Services & Infrastructure0.16%+0.16 ppTechnology Distributors0.08%+0.08 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.45%
Industry change · 12M
+3.45 pp
Semiconductors · contribution
+3.446 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 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 |
|---|---|---|---|---|---|---|---|
| Intel → INTC | United States | $230.7bn | 0.826% | +0.333 pp | +0.825 pp | -6.8% | Yes |
| Texas Instruments → TXN | United States | $175.3bn | 0.628% | +0.311 pp | +0.627 pp | +64.0% | Yes |
| Qualcomm → QCOM | United States | $151.8bn | 0.544% | +0.234 pp | +0.543 pp | +70.1% | Yes |
| Advanced Micro Devices → AMD | United States | $97.3bn | 0.349% | +0.144 pp | +0.348 pp | +48.8% | Yes |
| Micron Technology → MU | United States | $94.4bn | 0.338% | +0.133 pp | +0.338 pp | +75.6% | Yes |
| Analog Devices → ADI | United States | $60.7bn | 0.217% | +0.103 pp | +0.217 pp | +48.4% | Yes |
| NXP Semiconductors → NXPI | United States | $58.3bn | 0.209% | +0.209 pp | +0.209 pp | +122.7% | Yes |
| Skyworks Solutions → SWKS | United States | $28.1bn | 0.101% | +0.042 pp | +0.100 pp | +45.2% | Yes |
| Microchip Technology → MCHP | United States | $21.5bn | 0.077% | +0.036 pp | +0.077 pp | +65.4% | Yes |
| Broadcom → AVGO | United States | $19.3bn | 0.069% | +0.031 pp | +0.069 pp | +68.0% | Yes |
| Monolithic Power Systems → MPWR | United States | $15.7bn | 0.056% | +0.022 pp | +0.056 pp | +64.8% | Yes |
| Nvidia → NVDA | United States | $10.1bn | 0.036% | +0.019 pp | +0.036 pp | +83.3% | 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.