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 & Peripherals8.94%+6.99 ppSystems Software7.03%+1.06 ppApplication Software3.67%+0.52 ppCommunications Equipment0.94%-0.22 ppSemiconductors3.45%+0.22 ppElectronic Equipment & Instruments0.43%+0.14 ppSemiconductor Materials & Equipment0.44%+0.14 ppIT Consulting & Other Services1.36%-0.11 ppTechnology Distributors0.08%-0.02 ppInternet Services & Infrastructure0.17%-0.01 ppElectronic Components0.14%+0.01 ppElectronic Manufacturing Services0.16%+0.00 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.45%
Industry change · 12M
+0.22 pp
Semiconductors · contribution
+0.216 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 2020 · 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 |
|---|---|---|---|---|---|---|---|
| Intel → INTC | United States | $198.1bn | 0.841% | +0.840 pp | -0.431 pp | -14.6% | Yes |
| Advanced Micro Devices → AMD | United States | $111.4bn | 0.473% | +0.473 pp | +0.254 pp | +136.7% | Yes |
| Qualcomm → QCOM | United States | $166.4bn | 0.707% | +0.706 pp | +0.226 pp | +81.3% | Yes |
| Texas Instruments → TXN | United States | $148.0bn | 0.629% | +0.628 pp | +0.063 pp | +38.1% | Yes |
| Micron Technology → MU | United States | $71.3bn | 0.303% | +0.303 pp | +0.038 pp | +34.9% | Yes |
| Nvidia → NVDA | United States | $8.3bn | 0.035% | +0.035 pp | +0.019 pp | +147.7% | Yes |
| Microchip Technology → MCHP | United States | $17.5bn | 0.074% | +0.074 pp | +0.017 pp | +44.1% | Yes |
| Skyworks Solutions → SWKS | United States | $23.4bn | 0.100% | +0.099 pp | +0.015 pp | +46.4% | Yes |
| Analog Devices → ADI | United States | $51.4bn | 0.218% | +0.218 pp | +0.009 pp | +25.7% | Yes |
| Broadcom → AVGO | United States | $16.2bn | 0.069% | +0.069 pp | +0.006 pp | +33.0% | 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.