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
Systems Software9.18%+2.48 ppTechnology Hardware, Storage & Peripherals9.52%+1.23 ppApplication Software3.99%+1.12 ppSemiconductors3.68%+0.55 ppSemiconductor Materials & Equipment0.49%+0.08 ppCommunications Equipment0.87%-0.05 ppElectronic Equipment & Instruments0.35%-0.03 ppElectronic Components0.12%-0.02 ppIT Consulting & Other Services1.33%+0.02 ppElectronic Manufacturing Services0.13%-0.01 ppTechnology Distributors0.09%+0.00 ppInternet Services & Infrastructure0.12%-0.00 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.68%
Industry change · 12M
+0.55 pp
Semiconductors · contribution
+0.549 pp
Company participation
86%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 2023 · 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 |
|---|---|---|---|---|---|---|---|
| Nvidia → NVDA | United States | $115.5bn | 0.360% | -0.028 pp | +0.219 pp | +176.5% | Yes |
| Advanced Micro Devices → AMD | United States | $195.7bn | 0.610% | +0.066 pp | +0.185 pp | +56.1% | Yes |
| Intel → INTC | United States | $188.5bn | 0.588% | +0.119 pp | +0.166 pp | +52.1% | Yes |
| Texas Instruments → TXN | United States | $138.7bn | 0.432% | -0.054 pp | -0.123 pp | -12.7% | Yes |
| First Solar → FSLR | United States | $16.9bn | 0.053% | -0.012 pp | +0.053 pp | -8.5% | No |
| Micron Technology → MU | United States | $83.6bn | 0.261% | +0.016 pp | +0.048 pp | +33.1% | Yes |
| Broadcom → AVGO | United States | $38.2bn | 0.119% | -0.002 pp | +0.043 pp | +72.5% | Yes |
| Qualcomm → QCOM | United States | $143.6bn | 0.448% | +0.040 pp | -0.033 pp | +4.8% | Yes |
| Monolithic Power Systems → MPWR | United States | $26.3bn | 0.082% | +0.003 pp | +0.021 pp | +44.9% | Yes |
| ON Semiconductor → ON | United States | $30.7bn | 0.096% | -0.040 pp | -0.015 pp | -5.1% | No |
| Analog Devices → ADI | United States | $91.0bn | 0.284% | -0.005 pp | -0.013 pp | +8.7% | Yes |
| NXP Semiconductors → NXPI | United States | $52.6bn | 0.164% | -0.005 pp | +0.009 pp | +18.5% | Yes |
| Microchip Technology → MCHP | United States | $45.1bn | 0.141% | -0.001 pp | -0.007 pp | +7.4% | Yes |
| Skyworks Solutions → SWKS | United States | $15.5bn | 0.048% | -0.007 pp | -0.004 pp | +4.0% | 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.