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›Technology Hardware, Storage & Peripherals›Technology Hardware, Storage & Peripherals

1 · Sector

Weight and 12M allocation change

Consumer Discretionary48.2%+41.13 pp Materials1.1%-1.05 pp Utilities2.0%-1.12 pp Real Estate2.0%-1.28 pp Communication Services2.0%-1.49 pp Energy2.5%-2.22 pp Consumer Staples5.2%-4.15 pp Information Technology9.8%-6.27 pp Health Care10.0%-6.71 pp Industrials7.6%-7.94 pp Financials9.6%-8.89 pp

2 · Industry

Inside Information Technology

Semiconductors1.78%-1.44 pp Systems Software2.83%-1.44 pp Application Software1.75%-1.03 pp IT Consulting & Other Services0.86%-0.88 pp Communications Equipment0.82%-0.50 pp Technology Hardware, Storage & Peripherals1.24%-0.45 pp Semiconductor Materials & Equipment0.12%-0.23 pp Electronic Manufacturing Services0.09%-0.12 pp Electronic Components0.10%-0.08 pp Electronic Equipment & Instruments0.10%-0.06 pp Internet Services & Infrastructure0.10%-0.03 pp Technology Distributors0.00%+0.00 pp

3 · Sub-industry

Inside Technology Hardware, Storage & Peripherals

Technology Hardware, Storage & Peripherals1.24%-0.452 pp

Concentrated

Most of this industry's losses came from a few companies.

View all contributions →

Technology Hardware, Storage & Peripherals · weight

1.24%

Industry change · 12M

-0.45 pp

Technology Hardware, Storage & Peripherals · contribution

-0.452 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Oct 2018 · 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
Apple Inc. → AAPL	United States	$264.3bn	0.896%	-0.468 pp	-0.330 pp	+32.2%	No
HP Inc. → HPQ	United States	$38.2bn	0.129%	-0.087 pp	+0.108 pp	+5.3%	No
Western Digital → WDC	United States	$9.5bn	0.032%	-0.060 pp	-0.081 pp	-50.6%	No
Hewlett Packard Enterprise → HPE	United States	$22.4bn	0.076%	-0.060 pp	-0.073 pp	-5.3%	No
Seagate Technology → STX	United States	$11.6bn	0.039%	-0.049 pp	-0.051 pp	-24.6%	No
NetApp → NTAP	United States	$20.4bn	0.069%	-0.050 pp	-0.025 pp	+29.3%	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.