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 Technology18.1%+8.41 pp Financials16.5%+6.93 pp Health Care16.8%+6.27 pp Industrials13.7%+6.24 pp Consumer Staples8.8%+3.60 pp Communication Services5.3%+3.22 pp Materials3.2%+1.80 pp Utilities3.7%+1.59 pp Real Estate3.6%+1.58 pp Energy3.4%+1.00 pp Consumer Discretionary7.0%-40.65 pp

2 · Industry

Inside Information Technology

Systems Software5.97%+3.08 pp Semiconductors3.23%+1.49 pp Application Software3.15%+1.39 pp Technology Hardware, Storage & Peripherals1.96%+0.93 pp IT Consulting & Other Services1.47%+0.58 pp Communications Equipment1.16%+0.34 pp Semiconductor Materials & Equipment0.30%+0.17 pp Electronic Equipment & Instruments0.29%+0.15 pp Technology Distributors0.10%+0.10 pp Internet Services & Infrastructure0.18%+0.08 pp Electronic Manufacturing Services0.16%+0.07 pp Electronic Components0.13%+0.04 pp

3 · Sub-industry

Inside Semiconductors

Semiconductors3.23%+1.491 pp

Broad

The gain is shared across much of the industry.

View all contributions →

Semiconductors · weight

3.23%

Industry change · 12M

+1.49 pp

Semiconductors · contribution

+1.491 pp

Company participation

60%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 2019 · 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
Intel → INTC	United States	$252.5bn	1.272%	+0.130 pp	+0.524 pp	+20.7%	Yes
Texas Instruments → TXN	United States	$112.4bn	0.566%	-0.062 pp	+0.247 pp	+23.8%	No
Qualcomm → QCOM	United States	$95.4bn	0.481%	-0.034 pp	+0.246 pp	+49.2%	No
Advanced Micro Devices → AMD	United States	$43.6bn	0.220%	+0.034 pp	+0.149 pp	+83.8%	Yes
Micron Technology → MU	United States	$52.6bn	0.265%	-0.007 pp	+0.120 pp	+23.2%	Yes
Analog Devices → ADI	United States	$41.6bn	0.210%	-0.011 pp	+0.097 pp	+24.8%	No
Skyworks Solutions → SWKS	United States	$16.7bn	0.084%	+0.014 pp	+0.041 pp	+37.3%	Yes
Broadcom → AVGO	United States	$12.5bn	0.063%	+0.002 pp	+0.031 pp	+38.4%	Yes
Microchip Technology → MCHP	United States	$11.3bn	0.057%	+0.001 pp	+0.027 pp	+28.1%	No
Nvidia → NVDA	United States	$3.3bn	0.017%	+0.003 pp	+0.008 pp	+33.1%	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.