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 & Peripherals9.08%+7.18 ppSystems Software7.41%+1.62 ppApplication Software3.82%+0.75 ppCommunications Equipment0.89%-0.36 ppElectronic Equipment & Instruments0.40%+0.12 ppIT Consulting & Other Services1.34%-0.12 ppSemiconductor Materials & Equipment0.36%+0.07 ppSemiconductors3.33%+0.07 ppInternet Services & Infrastructure0.18%-0.01 ppTechnology Distributors0.08%-0.01 ppElectronic Manufacturing Services0.15%-0.01 ppElectronic Components0.14%-0.00 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.33%
Industry change · 12M
+0.07 pp
Semiconductors · contribution
+0.066 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 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 | $181.5bn | 0.859% | +0.858 pp | -0.423 pp | -19.9% | Yes |
| Advanced Micro Devices → AMD | United States | $90.6bn | 0.429% | +0.428 pp | +0.232 pp | +121.9% | Yes |
| Qualcomm → QCOM | United States | $139.2bn | 0.659% | +0.658 pp | +0.149 pp | +57.8% | Yes |
| Texas Instruments → TXN | United States | $132.7bn | 0.628% | +0.628 pp | +0.054 pp | +26.2% | Yes |
| Skyworks Solutions → SWKS | United States | $23.6bn | 0.112% | +0.112 pp | +0.030 pp | +57.6% | Yes |
| Nvidia → NVDA | United States | $7.7bn | 0.037% | +0.037 pp | +0.021 pp | +149.9% | Yes |
| Micron Technology → MU | United States | $56.0bn | 0.265% | +0.265 pp | -0.009 pp | +5.9% | Yes |
| Broadcom → AVGO | United States | $14.1bn | 0.067% | +0.067 pp | +0.006 pp | +25.0% | Yes |
| Microchip Technology → MCHP | United States | $13.3bn | 0.063% | +0.063 pp | +0.004 pp | +13.1% | Yes |
| Analog Devices → ADI | United States | $43.8bn | 0.207% | +0.207 pp | +0.002 pp | +13.5% | 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.