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
Semiconductors · weight
0.00%
Industry change · 12M
-3.18 pp
Semiconductors · contribution
-3.183 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 2020 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Intel →
INTC
United States$220.2bn0.001%-0.000 pp-1.211 pp+2.8%No
Texas Instruments →
TXN
United States$130.8bn0.001%+0.000 pp-0.640 pp+13.8%No
Qualcomm →
QCOM
United States$132.8bn0.001%+0.000 pp-0.492 pp+58.8%No
Micron Technology →
MU
United States$52.2bn0.000%-0.000 pp-0.251 pp+9.6%No
Analog Devices →
ADI
United States$43.1bn0.000%-0.000 pp-0.219 pp+6.7%No
Advanced Micro Devices →
AMD
United States$96.3bn0.000%+0.000 pp-0.167 pp+182.8%No
Skyworks Solutions →
SWKS
United States$24.3bn0.000%+0.000 pp-0.072 pp+86.5%No
Microchip Technology →
MCHP
United States$13.0bn0.000%-0.000 pp-0.059 pp+12.3%No
Broadcom →
AVGO
United States$14.7bn0.000%+0.000 pp-0.058 pp+38.2%No
Nvidia →
NVDA
United States$8.3bn0.000%+0.000 pp-0.014 pp+211.6%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.