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
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Information Technology
Technology Hardware, Storage & Peripherals5.83%-1.26 ppSemiconductors3.11%+0.43 ppApplication Software2.30%-0.31 ppIT Consulting & Other Services0.76%-0.15 ppCommunications Equipment0.54%-0.13 ppSystems Software6.16%-0.09 ppSemiconductor Materials & Equipment0.43%+0.07 ppElectronic Equipment & Instruments0.22%-0.05 ppInternet Services & Infrastructure0.06%-0.03 ppElectronic Manufacturing Services0.12%+0.02 ppElectronic Components0.10%+0.01 ppTechnology Distributors0.06%+0.00 pp
3 · Sub-industry
Inside Systems Software
Systems Software · weight
6.16%
Industry change · 12M
-0.09 pp
Systems Software · contribution
-0.090 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 2024 · 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 | $3085.4bn | 5.898% | -2.909 pp | -0.134 pp | +27.4% | No |
| Palo Alto Networks → PANW | United States | $47.7bn | 0.091% | -0.052 pp | +0.091 pp | +38.2% | No |
| Fortinet → FTNT | United States | $45.3bn | 0.087% | -0.064 pp | -0.046 pp | -13.2% | No |
| ServiceNow → NOW | United States | $26.9bn | 0.051% | -0.039 pp | -0.003 pp | +20.6% | No |
| Gen Digital → GEN | United States | $15.5bn | 0.030% | -0.010 pp | +0.002 pp | +44.9% | 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.