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
Semiconductors17.20%+2.80 ppTechnology Hardware, Storage & Peripherals9.09%+2.20 ppSystems Software7.02%-1.93 ppApplication Software1.80%-1.89 ppSemiconductor Materials & Equipment1.53%+0.91 ppCommunications Equipment1.55%+0.46 ppIT Consulting & Other Services0.62%-0.37 ppElectronic Components0.47%+0.22 ppElectronic Manufacturing Services0.23%+0.06 ppElectronic Equipment & Instruments0.24%-0.03 ppInternet Services & Infrastructure0.09%-0.03 ppTechnology Distributors0.03%-0.02 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
17.20%
Industry change · 12M
+2.80 pp
Semiconductors · contribution
+2.801 pp
Company participation
87%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 2026 · 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 |
|---|---|---|---|---|---|---|---|
| Micron Technology → MU | United States | $929.5bn | 1.623% | +0.831 pp | +1.365 pp | +655.3% | Yes |
| Advanced Micro Devices → AMD | United States | $776.4bn | 1.355% | +0.571 pp | +0.752 pp | +170.1% | Yes |
| Nvidia → NVDA | United States | $4858.1bn | 8.480% | +1.901 pp | -0.672 pp | +13.0% | Yes |
| Intel → INTC | United States | $455.0bn | 0.794% | +0.150 pp | +0.611 pp | +355.6% | Yes |
| Broadcom → AVGO | United States | $1852.0bn | 3.233% | +0.551 pp | +0.320 pp | +33.5% | Yes |
| Marvell Technology → MRVL | United States | $164.1bn | 0.286% | +0.286 pp | +0.286 pp | +133.9% | Yes |
| Texas Instruments → TXN | United States | $251.8bn | 0.440% | +0.093 pp | +0.092 pp | +56.2% | Yes |
| Analog Devices → ADI | United States | $179.0bn | 0.312% | +0.046 pp | +0.077 pp | +65.8% | Yes |
| Qualcomm → QCOM | United States | $155.0bn | 0.271% | +0.014 pp | -0.063 pp | +2.7% | No |
| Monolithic Power Systems → MPWR | United States | $70.1bn | 0.122% | +0.015 pp | +0.050 pp | +101.9% | Yes |
| NXP Semiconductors → NXPI | United States | $57.9bn | 0.101% | +0.000 pp | -0.013 pp | +9.1% | No |
| Microchip Technology → MCHP | United States | $40.3bn | 0.070% | +0.002 pp | -0.007 pp | +12.9% | Yes |
| ON Semiconductor → ON | United States | $32.0bn | 0.056% | +0.002 pp | +0.006 pp | +44.8% | Yes |
| Skyworks Solutions → SWKS | United States | $9.4bn | 0.016% | +0.002 pp | -0.005 pp | -5.3% | Yes |
| First Solar → FSLR | United States | $22.7bn | 0.040% | +0.010 pp | +0.000 pp | +20.8% | 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.