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
Semiconductors12.22%+9.11 ppSystems Software8.36%+2.20 ppTechnology Hardware, Storage & Peripherals7.10%+1.27 ppApplication Software3.35%+1.05 ppCommunications Equipment1.01%+0.47 ppIT Consulting & Other Services1.17%+0.41 ppSemiconductor Materials & Equipment0.57%+0.15 ppElectronic Components0.22%+0.12 ppInternet Services & Infrastructure0.14%+0.08 ppElectronic Equipment & Instruments0.29%+0.06 ppElectronic Manufacturing Services0.15%+0.03 ppTechnology Distributors0.05%-0.00 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
12.22%
Industry change · 12M
+9.11 pp
Semiconductors · contribution
+9.114 pp
Company participation
57%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 2025 · 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 | $3297.2bn | 7.471% | +0.654 pp | +6.955 pp | +23.3% | Yes |
| Broadcom → AVGO | United States | $1138.2bn | 2.579% | +0.488 pp | +2.461 pp | +84.4% | Yes |
| Advanced Micro Devices → AMD | United States | $179.5bn | 0.407% | +0.045 pp | -0.109 pp | -33.7% | Yes |
| Qualcomm → QCOM | United States | $159.4bn | 0.361% | -0.028 pp | -0.074 pp | -27.7% | No |
| Intel → INTC | United States | $85.3bn | 0.193% | -0.037 pp | -0.058 pp | -36.2% | No |
| Texas Instruments → TXN | United States | $166.1bn | 0.376% | -0.023 pp | +0.037 pp | -3.5% | No |
| Microchip Technology → MCHP | United States | $31.3bn | 0.071% | +0.000 pp | -0.029 pp | -38.6% | Yes |
| Micron Technology → MU | United States | $105.6bn | 0.239% | +0.006 pp | -0.025 pp | -24.1% | Yes |
| NXP Semiconductors → NXPI | United States | $48.3bn | 0.109% | -0.013 pp | -0.024 pp | -28.5% | No |
| ON Semiconductor → ON | United States | $17.6bn | 0.040% | -0.005 pp | -0.020 pp | -42.5% | No |
| Analog Devices → ADI | United States | $106.2bn | 0.241% | -0.015 pp | +0.018 pp | -7.2% | Yes |
| First Solar → FSLR | United States | $17.0bn | 0.038% | +0.006 pp | -0.017 pp | -41.8% | Yes |
| Skyworks Solutions → SWKS | United States | $10.4bn | 0.023% | -0.000 pp | -0.005 pp | -22.8% | No |
| Monolithic Power Systems → MPWR | United States | $31.7bn | 0.072% | +0.005 pp | +0.003 pp | -9.3% | 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.