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
Semiconductors13.54%+10.43 ppSystems Software8.64%+2.13 ppApplication Software3.56%+0.95 ppTechnology Hardware, Storage & Peripherals6.94%+0.63 ppCommunications Equipment1.06%+0.51 ppIT Consulting & Other Services1.15%+0.36 ppSemiconductor Materials & Equipment0.64%+0.19 ppElectronic Components0.23%+0.13 ppElectronic Equipment & Instruments0.28%+0.06 ppElectronic Manufacturing Services0.16%+0.05 ppInternet Services & Infrastructure0.14%+0.04 ppTechnology Distributors0.05%-0.01 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
13.54%
Industry change · 12M
+10.43 pp
Semiconductors · contribution
+10.425 pp
Company participation
79%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 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 | $3855.0bn | 8.312% | +2.034 pp | +7.743 pp | +27.9% | Yes |
| Broadcom → AVGO | United States | $1296.5bn | 2.796% | +0.927 pp | +2.656 pp | +73.6% | Yes |
| Texas Instruments → TXN | United States | $188.6bn | 0.407% | +0.018 pp | +0.075 pp | +9.9% | Yes |
| Analog Devices → ADI | United States | $118.1bn | 0.255% | +0.017 pp | +0.042 pp | +6.1% | Yes |
| Qualcomm → QCOM | United States | $174.9bn | 0.377% | -0.026 pp | -0.040 pp | -18.3% | No |
| Intel → INTC | United States | $97.7bn | 0.211% | -0.023 pp | -0.036 pp | -27.2% | No |
| Micron Technology → MU | United States | $137.9bn | 0.297% | +0.067 pp | +0.024 pp | -5.9% | Yes |
| Microchip Technology → MCHP | United States | $38.0bn | 0.082% | +0.020 pp | -0.010 pp | -20.9% | Yes |
| NXP Semiconductors → NXPI | United States | $55.2bn | 0.119% | +0.005 pp | -0.010 pp | -17.3% | Yes |
| ON Semiconductor → ON | United States | $21.9bn | 0.047% | +0.007 pp | -0.008 pp | -23.5% | Yes |
| Skyworks Solutions → SWKS | United States | $11.2bn | 0.024% | -0.001 pp | -0.008 pp | -27.6% | No |
| First Solar → FSLR | United States | $17.8bn | 0.038% | +0.006 pp | -0.007 pp | -26.6% | Yes |
| Advanced Micro Devices → AMD | United States | $230.1bn | 0.496% | +0.101 pp | +0.005 pp | -12.5% | Yes |
| Monolithic Power Systems → MPWR | United States | $35.0bn | 0.076% | +0.010 pp | +0.001 pp | -10.3% | 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.