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

Universe›Information Technology›Semiconductors›Semiconductors

1 · Sector

Weight and 12M allocation change

Information Technology28.3%+2.98 pp Consumer Discretionary12.3%+1.34 pp Industrials9.9%+0.26 pp Energy3.7%+0.18 pp Materials2.9%-0.09 pp Communication Services2.9%-0.40 pp Real Estate2.8%-0.49 pp Utilities2.8%-0.68 pp Consumer Staples7.1%-0.72 pp Financials11.1%-0.86 pp Health Care16.2%-1.52 pp

2 · Industry

Inside Information Technology

Systems Software8.22%+1.14 pp Application Software3.70%+0.88 pp Semiconductors3.59%+0.52 pp Technology Hardware, Storage & Peripherals9.23%+0.22 pp Semiconductor Materials & Equipment0.49%+0.13 pp Communications Equipment0.96%+0.10 pp Electronic Equipment & Instruments0.36%-0.02 pp IT Consulting & Other Services1.28%+0.02 pp Electronic Manufacturing Services0.13%-0.01 pp Technology Distributors0.09%+0.01 pp Electronic Components0.13%-0.01 pp Internet Services & Infrastructure0.12%+0.00 pp

3 · Sub-industry

Inside Semiconductors

Semiconductors3.59%+0.521 pp

Broad

The gain is shared across much of the industry.

View all contributions →

Semiconductors · weight

3.59%

Industry change · 12M

+0.52 pp

Semiconductors · contribution

+0.521 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 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	$107.4bn	0.359%	+0.117 pp	+0.240 pp	+258.6%	Yes
Advanced Micro Devices → AMD	United States	$166.1bn	0.555%	+0.131 pp	+0.153 pp	+62.3%	Yes
Qualcomm → QCOM	United States	$123.9bn	0.414%	+0.107 pp	-0.085 pp	+0.9%	Yes
Intel → INTC	United States	$148.9bn	0.497%	+0.175 pp	+0.081 pp	+42.6%	Yes
Texas Instruments → TXN	United States	$144.4bn	0.482%	+0.104 pp	-0.074 pp	+5.8%	Yes
First Solar → FSLR	United States	$17.3bn	0.058%	+0.011 pp	+0.058 pp	+22.2%	Yes
Broadcom → AVGO	United States	$34.3bn	0.114%	+0.032 pp	+0.044 pp	+92.0%	Yes
Micron Technology → MU	United States	$74.5bn	0.249%	+0.089 pp	+0.032 pp	+36.9%	Yes
ON Semiconductor → ON	United States	$40.1bn	0.134%	+0.039 pp	+0.028 pp	+49.1%	Yes
NXP Semiconductors → NXPI	United States	$51.5bn	0.172%	+0.049 pp	+0.020 pp	+38.4%	Yes
Analog Devices → ADI	United States	$87.2bn	0.291%	+0.065 pp	+0.010 pp	+28.0%	Yes
Microchip Technology → MCHP	United States	$42.5bn	0.142%	+0.029 pp	+0.009 pp	+30.3%	Yes
Monolithic Power Systems → MPWR	United States	$22.1bn	0.074%	+0.014 pp	+0.007 pp	+28.2%	Yes
Skyworks Solutions → SWKS	United States	$15.7bn	0.052%	+0.012 pp	-0.001 pp	+18.5%	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.