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 & Peripherals4.23%+4.22 ppSystems Software3.55%+3.55 ppSemiconductors1.93%+1.92 ppApplication Software1.77%+1.76 ppIT Consulting & Other Services0.68%+0.68 ppCommunications Equipment0.52%+0.52 ppSemiconductor Materials & Equipment0.31%+0.31 ppElectronic Equipment & Instruments0.22%+0.22 ppElectronic Manufacturing Services0.08%+0.08 ppInternet Services & Infrastructure0.08%+0.08 ppElectronic Components0.08%+0.07 ppTechnology Distributors0.05%+0.05 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
1.93%
Industry change · 12M
+1.92 pp
Semiconductors · contribution
+1.925 pp
Company participation
17%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 2021 · 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 | $260.0bn | 0.508% | -0.318 pp | +0.507 pp | +21.3% | No |
| Texas Instruments → TXN | United States | $173.9bn | 0.340% | -0.270 pp | +0.340 pp | +94.5% | No |
| Qualcomm → QCOM | United States | $150.6bn | 0.295% | -0.403 pp | +0.294 pp | +100.4% | No |
| Micron Technology → MU | United States | $98.7bn | 0.193% | -0.146 pp | +0.193 pp | +109.7% | No |
| Advanced Micro Devices → AMD | United States | $95.1bn | 0.186% | -0.260 pp | +0.186 pp | +72.6% | No |
| Analog Devices → ADI | United States | $57.2bn | 0.112% | -0.109 pp | +0.112 pp | +76.3% | No |
| NXP Semiconductors → NXPI | United States | $55.8bn | 0.109% | +0.109 pp | +0.109 pp | +145.7% | Yes |
| Skyworks Solutions → SWKS | United States | $30.3bn | 0.059% | -0.044 pp | +0.059 pp | +108.1% | No |
| Microchip Technology → MCHP | United States | $20.9bn | 0.041% | -0.032 pp | +0.041 pp | +131.9% | No |
| Broadcom → AVGO | United States | $18.9bn | 0.037% | -0.035 pp | +0.037 pp | +102.6% | No |
| Monolithic Power Systems → MPWR | United States | $16.1bn | 0.032% | +0.032 pp | +0.032 pp | +112.5% | Yes |
| Nvidia → NVDA | United States | $8.3bn | 0.016% | -0.017 pp | +0.016 pp | +102.8% | 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.