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›Systems Software›Systems Software

1 · Sector

Weight and 12M allocation change

Health Care18.1%+1.27 pp Utilities3.8%+0.64 pp Information Technology17.5%+0.52 pp Real Estate3.7%+0.46 pp Materials2.5%+0.41 pp Communication Services3.6%+0.24 pp Consumer Discretionary7.1%+0.12 pp Energy4.3%-0.09 pp Consumer Staples8.8%-0.25 pp Industrials14.2%-1.17 pp Financials16.5%-2.16 pp

2 · Industry

Inside Information Technology

Systems Software5.08%+0.66 pp Application Software3.31%+0.38 pp Semiconductors3.18%-0.22 pp IT Consulting & Other Services1.59%-0.20 pp Semiconductor Materials & Equipment0.24%-0.16 pp Technology Hardware, Storage & Peripherals1.73%-0.13 pp Electronic Equipment & Instruments0.29%+0.12 pp Communications Equipment1.52%+0.07 pp Electronic Manufacturing Services0.16%-0.06 pp Internet Services & Infrastructure0.19%+0.05 pp Electronic Components0.18%+0.01 pp Technology Distributors0.00%+0.00 pp

3 · Sub-industry

Inside Systems Software

Systems Software5.08%+0.658 pp

Concentrated

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

View all contributions →

Systems Software · weight

5.08%

Industry change · 12M

+0.66 pp

Systems Software · contribution

+0.658 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 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
Microsoft → MSFT	United States	$859.5bn	4.982%	+2.154 pp	+0.655 pp	+21.5%	Yes
Fortinet → FTNT	United States	$3.0bn	0.017%	+0.009 pp	+0.017 pp	+72.0%	Yes
Gen Digital → GEN	United States	$14.4bn	0.083%	+0.036 pp	-0.015 pp	-13.3%	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.