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 Technology17.9%+8.09 pp Financials16.2%+6.66 pp Health Care16.5%+6.53 pp Industrials13.4%+5.79 pp Consumer Staples9.0%+3.80 pp Communication Services5.3%+3.36 pp Materials3.2%+2.13 pp Real Estate3.8%+1.85 pp Utilities3.9%+1.83 pp Energy3.5%+1.02 pp Consumer Discretionary7.1%-41.06 pp

2 · Industry

Inside Information Technology

Systems Software5.79%+2.96 pp Semiconductors3.26%+1.48 pp Application Software3.07%+1.32 pp Technology Hardware, Storage & Peripherals1.90%+0.66 pp IT Consulting & Other Services1.45%+0.59 pp Communications Equipment1.25%+0.43 pp Electronic Equipment & Instruments0.28%+0.18 pp Semiconductor Materials & Equipment0.30%+0.17 pp Technology Distributors0.10%+0.10 pp Internet Services & Infrastructure0.19%+0.09 pp Electronic Manufacturing Services0.16%+0.07 pp Electronic Components0.14%+0.04 pp

3 · Sub-industry

Inside Semiconductors

Semiconductors3.26%+1.482 pp

Broad

The gain is shared across much of the industry.

View all contributions →

Semiconductors · weight

3.26%

Industry change · 12M

+1.48 pp

Semiconductors · contribution

+1.482 pp

Company participation

80%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Oct 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	$245.9bn	1.282%	+0.090 pp	+0.556 pp	+23.7%	Yes
Texas Instruments → TXN	United States	$110.3bn	0.575%	-0.046 pp	+0.269 pp	+30.7%	No
Qualcomm → QCOM	United States	$97.8bn	0.510%	+0.036 pp	+0.197 pp	+33.0%	Yes
Advanced Micro Devices → AMD	United States	$37.8bn	0.197%	+0.021 pp	+0.135 pp	+86.3%	Yes
Micron Technology → MU	United States	$52.6bn	0.274%	+0.011 pp	+0.129 pp	+26.1%	Yes
Analog Devices → ADI	United States	$39.4bn	0.205%	-0.026 pp	+0.100 pp	+30.1%	No
Microchip Technology → MCHP	United States	$11.2bn	0.058%	-0.001 pp	+0.032 pp	+45.9%	Yes
Broadcom → AVGO	United States	$11.6bn	0.061%	-0.001 pp	+0.029 pp	+36.1%	Yes
Skyworks Solutions → SWKS	United States	$15.6bn	0.081%	+0.003 pp	+0.029 pp	+7.2%	Yes
Nvidia → NVDA	United States	$3.1bn	0.016%	+0.002 pp	+0.005 pp	-4.3%	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.