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 Software5.62%+0.95 ppSemiconductors3.07%-0.43 ppTechnology Hardware, Storage & Peripherals1.71%-0.36 ppIT Consulting & Other Services1.54%-0.19 ppApplication Software3.20%+0.16 ppElectronic Equipment & Instruments0.30%+0.12 ppCommunications Equipment1.46%+0.06 ppSemiconductor Materials & Equipment0.25%-0.06 ppInternet Services & Infrastructure0.21%+0.05 ppElectronic Manufacturing Services0.17%-0.02 ppElectronic Components0.16%+0.00 ppTechnology Distributors0.00%+0.00 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.07%
Industry change · 12M
-0.43 pp
Semiconductors · contribution
-0.426 pp
Company participation
80%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 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 | $214.3bn | 1.155% | -0.232 pp | -0.250 pp | -1.3% | No |
| Micron Technology → MU | United States | $42.6bn | 0.230% | -0.033 pp | -0.139 pp | -26.4% | Yes |
| Advanced Micro Devices → AMD | United States | $32.8bn | 0.177% | +0.030 pp | +0.089 pp | +102.6% | Yes |
| Texas Instruments → TXN | United States | $107.7bn | 0.580% | +0.009 pp | -0.074 pp | +7.1% | Yes |
| Skyworks Solutions → SWKS | United States | $13.3bn | 0.072% | -0.011 pp | -0.035 pp | -18.5% | No |
| Microchip Technology → MCHP | United States | $10.3bn | 0.056% | -0.001 pp | -0.009 pp | -3.0% | Yes |
| Analog Devices → ADI | United States | $41.7bn | 0.225% | +0.002 pp | +0.009 pp | +20.1% | Yes |
| Nvidia → NVDA | United States | $2.5bn | 0.013% | -0.002 pp | -0.008 pp | -30.4% | Yes |
| Qualcomm → QCOM | United States | $92.5bn | 0.499% | +0.102 pp | -0.006 pp | +41.2% | Yes |
| Broadcom → AVGO | United States | $11.5bn | 0.062% | -0.007 pp | -0.002 pp | +23.0% | 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.