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 Software4.46%-2.74 ppTechnology Hardware, Storage & Peripherals5.82%-2.61 ppApplication Software1.57%-1.73 ppSemiconductors10.39%-0.75 ppIT Consulting & Other Services0.55%-0.65 ppSemiconductor Materials & Equipment0.94%+0.37 ppCommunications Equipment0.86%-0.18 ppElectronic Components0.30%+0.11 ppElectronic Equipment & Instruments0.18%-0.11 ppInternet Services & Infrastructure0.06%-0.07 ppTechnology Distributors0.02%-0.03 ppElectronic Manufacturing Services0.13%-0.01 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
10.39%
Industry change · 12M
-0.75 pp
Semiconductors · contribution
-0.749 pp
Company participation
7%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 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 |
|---|---|---|---|---|---|---|---|
| Nvidia → NVDA | United States | $4305.7bn | 5.910% | -2.539 pp | -0.907 pp | +41.9% | No |
| Micron Technology → MU | United States | $464.1bn | 0.637% | +0.116 pp | +0.404 pp | +341.9% | Yes |
| Qualcomm → QCOM | United States | $151.9bn | 0.208% | -0.145 pp | -0.180 pp | -7.4% | No |
| Texas Instruments → TXN | United States | $192.5bn | 0.264% | -0.036 pp | -0.135 pp | +11.6% | No |
| Advanced Micro Devices → AMD | United States | $326.4bn | 0.448% | -0.248 pp | +0.086 pp | +100.5% | No |
| Intel → INTC | United States | $227.8bn | 0.313% | -0.067 pp | +0.083 pp | +92.2% | No |
| NXP Semiconductors → NXPI | United States | $57.4bn | 0.079% | -0.018 pp | -0.044 pp | +7.3% | No |
| Analog Devices → ADI | United States | $173.7bn | 0.238% | -0.017 pp | -0.017 pp | +57.2% | No |
| Microchip Technology → MCHP | United States | $40.4bn | 0.055% | -0.001 pp | -0.015 pp | +30.6% | No |
| Skyworks Solutions → SWKS | United States | $9.0bn | 0.012% | -0.007 pp | -0.012 pp | -6.7% | No |
| Broadcom → AVGO | United States | $1515.1bn | 2.080% | -1.658 pp | -0.011 pp | +61.7% | No |
| Monolithic Power Systems → MPWR | United States | $56.1bn | 0.077% | -0.010 pp | +0.010 pp | +88.6% | No |
| ON Semiconductor → ON | United States | $26.2bn | 0.036% | -0.004 pp | -0.008 pp | +41.3% | No |
| First Solar → FSLR | United States | $21.2bn | 0.029% | -0.028 pp | -0.004 pp | +44.8% | 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.