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 & Peripherals9.07%+1.21 ppSystems Software7.47%+0.59 ppApplication Software3.05%-0.52 ppSemiconductors3.74%+0.29 ppSemiconductor Materials & Equipment0.48%-0.11 ppCommunications Equipment0.87%-0.10 ppIT Consulting & Other Services1.35%+0.06 ppInternet Services & Infrastructure0.13%-0.03 ppElectronic Components0.15%-0.02 ppElectronic Equipment & Instruments0.40%-0.02 ppElectronic Manufacturing Services0.15%-0.01 ppTechnology Distributors0.08%-0.00 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.74%
Industry change · 12M
+0.29 pp
Semiconductors · contribution
+0.292 pp
Company participation
58%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 2022 · 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 |
|---|---|---|---|---|---|---|---|
| Advanced Micro Devices → AMD | United States | $165.1bn | 0.594% | +0.081 pp | +0.246 pp | +27.2% | Yes |
| Intel → INTC | United States | $181.6bn | 0.654% | -0.020 pp | -0.172 pp | -20.0% | No |
| Nvidia → NVDA | United States | $46.7bn | 0.168% | -0.043 pp | +0.132 pp | +15.0% | No |
| Analog Devices → ADI | United States | $87.5bn | 0.315% | +0.024 pp | +0.098 pp | +4.1% | Yes |
| Microchip Technology → MCHP | United States | $40.3bn | 0.145% | +0.009 pp | +0.068 pp | -6.2% | Yes |
| Micron Technology → MU | United States | $82.5bn | 0.297% | -0.048 pp | -0.041 pp | -11.9% | No |
| Texas Instruments → TXN | United States | $163.0bn | 0.587% | +0.042 pp | -0.041 pp | -4.5% | Yes |
| Skyworks Solutions → SWKS | United States | $17.5bn | 0.063% | -0.016 pp | -0.037 pp | -34.9% | No |
| Qualcomm → QCOM | United States | $160.4bn | 0.578% | -0.095 pp | +0.034 pp | +8.3% | No |
| NXP Semiconductors → NXPI | United States | $49.8bn | 0.179% | +0.006 pp | -0.029 pp | -9.1% | Yes |
| Monolithic Power Systems → MPWR | United States | $21.0bn | 0.076% | +0.002 pp | +0.019 pp | +32.0% | Yes |
| Broadcom → AVGO | United States | $23.7bn | 0.085% | +0.001 pp | +0.016 pp | +26.3% | 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.