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 & Peripherals9.98%+4.46 ppSystems Software8.00%+3.72 ppSemiconductors3.71%+1.62 ppApplication Software3.54%+1.45 ppIT Consulting & Other Services1.39%+0.65 ppCommunications Equipment0.97%+0.42 ppSemiconductor Materials & Equipment0.52%+0.24 ppElectronic Equipment & Instruments0.42%+0.17 ppElectronic Components0.16%+0.08 ppElectronic Manufacturing Services0.16%+0.06 ppInternet Services & Infrastructure0.14%+0.05 ppTechnology Distributors0.09%+0.04 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.71%
Industry change · 12M
+1.62 pp
Semiconductors · contribution
+1.623 pp
Company participation
42%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 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 |
|---|---|---|---|---|---|---|---|
| Qualcomm → QCOM | United States | $196.9bn | 0.662% | +0.161 pp | +0.239 pp | +14.5% | Yes |
| Advanced Micro Devices → AMD | United States | $138.0bn | 0.464% | -0.021 pp | +0.216 pp | +33.4% | No |
| Texas Instruments → TXN | United States | $165.8bn | 0.558% | -0.021 pp | +0.193 pp | +10.9% | No |
| Nvidia → NVDA | United States | $61.2bn | 0.206% | -0.008 pp | +0.187 pp | +88.7% | No |
| NXP Semiconductors → NXPI | United States | $54.6bn | 0.184% | +0.006 pp | +0.184 pp | +29.4% | No |
| Analog Devices → ADI | United States | $86.1bn | 0.290% | +0.076 pp | +0.159 pp | +13.1% | Yes |
| Intel → INTC | United States | $198.8bn | 0.669% | +0.003 pp | +0.128 pp | -9.8% | No |
| Microchip Technology → MCHP | United States | $43.0bn | 0.145% | +0.077 pp | +0.102 pp | +15.1% | Yes |
| Micron Technology → MU | United States | $92.1bn | 0.310% | +0.052 pp | +0.100 pp | +5.4% | Yes |
| Monolithic Power Systems → MPWR | United States | $18.6bn | 0.062% | -0.018 pp | +0.062 pp | +14.1% | No |
| Broadcom → AVGO | United States | $24.2bn | 0.081% | +0.008 pp | +0.037 pp | +33.9% | Yes |
| Skyworks Solutions → SWKS | United States | $24.4bn | 0.082% | -0.010 pp | +0.015 pp | -12.4% | No |
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.