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 & Peripherals8.46%+8.46 ppSystems Software7.36%+7.35 ppApplication Software3.73%+3.73 ppSemiconductors3.52%+3.51 ppIT Consulting & Other Services1.31%+1.31 ppCommunications Equipment0.96%+0.96 ppSemiconductor Materials & Equipment0.59%+0.59 ppElectronic Equipment & Instruments0.43%+0.43 ppElectronic Components0.16%+0.16 ppElectronic Manufacturing Services0.16%+0.16 ppInternet Services & Infrastructure0.16%+0.16 ppTechnology Distributors0.09%+0.09 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.52%
Industry change · 12M
+3.51 pp
Semiconductors · contribution
+3.514 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 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 | $226.7bn | 0.800% | +0.292 pp | +0.799 pp | -3.7% | Yes |
| Texas Instruments → TXN | United States | $177.6bn | 0.627% | +0.287 pp | +0.626 pp | +55.4% | Yes |
| Qualcomm → QCOM | United States | $161.2bn | 0.569% | +0.275 pp | +0.569 pp | +59.8% | Yes |
| Advanced Micro Devices → AMD | United States | $114.1bn | 0.403% | +0.217 pp | +0.403 pp | +78.5% | Yes |
| Micron Technology → MU | United States | $95.3bn | 0.336% | +0.143 pp | +0.336 pp | +64.9% | Yes |
| Analog Devices → ADI | United States | $63.5bn | 0.224% | +0.112 pp | +0.224 pp | +42.9% | Yes |
| NXP Semiconductors → NXPI | United States | $56.7bn | 0.200% | +0.091 pp | +0.200 pp | +82.4% | Yes |
| Skyworks Solutions → SWKS | United States | $31.7bn | 0.112% | +0.053 pp | +0.112 pp | +51.9% | Yes |
| Microchip Technology → MCHP | United States | $20.5bn | 0.072% | +0.031 pp | +0.072 pp | +43.9% | Yes |
| Broadcom → AVGO | United States | $19.6bn | 0.069% | +0.032 pp | +0.069 pp | +56.2% | Yes |
| Monolithic Power Systems → MPWR | United States | $17.1bn | 0.060% | +0.029 pp | +0.060 pp | +58.6% | Yes |
| Nvidia → NVDA | United States | $12.5bn | 0.044% | +0.028 pp | +0.044 pp | +110.8% | 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.