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 & Peripherals6.30%-0.96 ppSemiconductors3.11%+0.49 ppSystems Software6.51%+0.34 ppCommunications Equipment0.55%-0.10 ppSemiconductor Materials & Equipment0.46%+0.10 ppIT Consulting & Other Services0.79%-0.09 ppElectronic Equipment & Instruments0.22%-0.05 ppApplication Software2.61%+0.01 ppInternet Services & Infrastructure0.10%+0.01 ppElectronic Manufacturing Services0.11%+0.01 ppElectronic Components0.10%+0.00 ppTechnology Distributors0.06%-0.00 pp
3 · Sub-industry
Inside Systems Software
Systems Software · weight
6.51%
Industry change · 12M
+0.34 pp
Systems Software · contribution
+0.342 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 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 | $3321.9bn | 6.227% | -2.443 pp | +0.371 pp | +32.3% | No |
| Fortinet → FTNT | United States | $46.0bn | 0.086% | -0.058 pp | -0.051 pp | -20.3% | No |
| Palo Alto Networks → PANW | United States | $54.9bn | 0.103% | -0.024 pp | +0.013 pp | +32.7% | No |
| ServiceNow → NOW | United States | $32.3bn | 0.060% | -0.026 pp | +0.008 pp | +40.0% | No |
| Gen Digital → GEN | United States | $15.6bn | 0.029% | -0.010 pp | +0.002 pp | +37.8% | 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.