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 Software5.64%+0.82 ppTechnology Hardware, Storage & Peripherals1.76%-0.26 ppSemiconductors3.17%-0.22 ppApplication Software3.19%+0.18 ppCommunications Equipment1.46%+0.13 ppElectronic Equipment & Instruments0.29%+0.11 ppIT Consulting & Other Services1.59%-0.10 ppSemiconductor Materials & Equipment0.27%-0.04 ppInternet Services & Infrastructure0.21%+0.03 ppElectronic Components0.15%-0.03 ppElectronic Manufacturing Services0.17%-0.02 ppTechnology Distributors0.00%+0.00 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.17%
Industry change · 12M
-0.22 pp
Semiconductors · contribution
-0.218 pp
Company participation
70%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 2019 · 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 | $223.9bn | 1.192% | -0.081 pp | -0.102 pp | +7.7% | No |
| Micron Technology → MU | United States | $49.5bn | 0.264% | +0.004 pp | -0.093 pp | -15.0% | Yes |
| Qualcomm → QCOM | United States | $88.9bn | 0.473% | -0.108 pp | -0.076 pp | +18.9% | Yes |
| Advanced Micro Devices → AMD | United States | $33.1bn | 0.176% | +0.021 pp | +0.072 pp | +66.1% | Yes |
| Analog Devices → ADI | United States | $43.4bn | 0.231% | -0.007 pp | +0.023 pp | +24.7% | Yes |
| Skyworks Solutions → SWKS | United States | $14.7bn | 0.078% | -0.007 pp | -0.020 pp | -8.1% | Yes |
| Texas Instruments → TXN | United States | $116.7bn | 0.621% | +0.005 pp | -0.015 pp | +15.6% | Yes |
| Nvidia → NVDA | United States | $2.6bn | 0.014% | -0.002 pp | -0.008 pp | -30.8% | No |
| Broadcom → AVGO | United States | $11.5bn | 0.061% | -0.009 pp | +0.006 pp | +35.6% | No |
| Microchip Technology → MCHP | United States | $11.2bn | 0.060% | -0.006 pp | -0.004 pp | +2.9% | 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.