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 Software5.68%+1.16 ppApplication Software3.34%+0.37 ppTechnology Hardware, Storage & Peripherals1.85%-0.14 ppElectronic Equipment & Instruments0.30%+0.13 ppIT Consulting & Other Services1.62%-0.11 ppSemiconductor Materials & Equipment0.26%-0.09 ppCommunications Equipment1.56%+0.08 ppInternet Services & Infrastructure0.20%+0.06 ppSemiconductors3.36%+0.03 ppElectronic Manufacturing Services0.18%-0.02 ppElectronic Components0.16%+0.00 ppTechnology Distributors0.00%+0.00 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.36%
Industry change · 12M
+0.03 pp
Semiconductors · contribution
+0.034 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 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 | $228.5bn | 1.273% | +0.564 pp | -0.205 pp | +1.3% | Yes |
| Qualcomm → QCOM | United States | $104.2bn | 0.581% | +0.383 pp | +0.116 pp | +76.1% | Yes |
| Advanced Micro Devices → AMD | United States | $27.8bn | 0.155% | +0.074 pp | +0.090 pp | +154.0% | Yes |
| Broadcom → AVGO | United States | $12.6bn | 0.070% | +0.034 pp | +0.070 pp | +44.5% | Yes |
| Micron Technology → MU | United States | $46.5bn | 0.259% | +0.118 pp | -0.068 pp | -8.5% | Yes |
| Analog Devices → ADI | United States | $42.8bn | 0.239% | +0.118 pp | +0.040 pp | +35.8% | Yes |
| Skyworks Solutions → SWKS | United States | $15.3bn | 0.086% | +0.043 pp | -0.012 pp | +3.4% | Yes |
| Microchip Technology → MCHP | United States | $11.8bn | 0.066% | +0.035 pp | +0.006 pp | +21.5% | Yes |
| Nvidia → NVDA | United States | $2.7bn | 0.015% | +0.008 pp | -0.006 pp | -19.3% | Yes |
| Texas Instruments → TXN | United States | $110.5bn | 0.616% | +0.297 pp | +0.003 pp | +19.4% | 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.