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 Software8.15%+0.92 ppApplication Software3.83%+0.83 ppSemiconductors3.59%+0.33 ppTechnology Hardware, Storage & Peripherals9.66%+0.30 ppSemiconductor Materials & Equipment0.51%+0.14 ppCommunications Equipment0.97%+0.10 ppElectronic Equipment & Instruments0.35%-0.02 ppIT Consulting & Other Services1.29%+0.02 ppElectronic Manufacturing Services0.13%-0.01 ppElectronic Components0.13%-0.01 ppTechnology Distributors0.09%+0.01 ppInternet Services & Infrastructure0.12%-0.00 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.59%
Industry change · 12M
+0.33 pp
Semiconductors · contribution
+0.332 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 2023 · 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 |
|---|---|---|---|---|---|---|---|
| Nvidia → NVDA | United States | $121.9bn | 0.388% | +0.158 pp | +0.254 pp | +227.3% | Yes |
| Qualcomm → QCOM | United States | $127.8bn | 0.407% | +0.095 pp | -0.124 pp | -11.1% | Yes |
| First Solar → FSLR | United States | $20.2bn | 0.064% | +0.011 pp | +0.064 pp | +48.3% | Yes |
| Advanced Micro Devices → AMD | United States | $170.8bn | 0.544% | +0.074 pp | +0.054 pp | +24.6% | Yes |
| Texas Instruments → TXN | United States | $152.6bn | 0.486% | +0.096 pp | -0.054 pp | +4.8% | Yes |
| Broadcom → AVGO | United States | $38.1bn | 0.121% | +0.038 pp | +0.049 pp | +90.4% | Yes |
| ON Semiconductor → ON | United States | $42.5bn | 0.135% | +0.046 pp | +0.029 pp | +43.2% | Yes |
| Micron Technology → MU | United States | $76.6bn | 0.244% | +0.060 pp | +0.021 pp | +24.8% | Yes |
| NXP Semiconductors → NXPI | United States | $53.0bn | 0.169% | +0.054 pp | +0.014 pp | +27.7% | Yes |
| Microchip Technology → MCHP | United States | $44.5bn | 0.142% | +0.041 pp | +0.013 pp | +27.8% | Yes |
| Analog Devices → ADI | United States | $90.6bn | 0.289% | +0.069 pp | +0.010 pp | +21.6% | Yes |
| Monolithic Power Systems → MPWR | United States | $24.9bn | 0.079% | +0.022 pp | +0.003 pp | +15.9% | Yes |
| Skyworks Solutions → SWKS | United States | $17.3bn | 0.055% | +0.015 pp | -0.001 pp | +13.1% | Yes |
| Intel → INTC | United States | $147.2bn | 0.469% | +0.145 pp | -0.000 pp | +13.8% | 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.