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 & Peripherals9.73%+5.45 ppSystems Software7.95%+4.37 ppSemiconductors3.80%+1.96 ppApplication Software3.30%+1.52 ppIT Consulting & Other Services1.32%+0.69 ppCommunications Equipment1.01%+0.54 ppSemiconductor Materials & Equipment0.52%+0.24 ppElectronic Equipment & Instruments0.41%+0.20 ppElectronic Components0.16%+0.09 ppElectronic Manufacturing Services0.16%+0.07 ppInternet Services & Infrastructure0.14%+0.07 ppTechnology Distributors0.08%+0.04 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
3.80%
Industry change · 12M
+1.96 pp
Semiconductors · contribution
+1.965 pp
Company participation
42%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 2022 · 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 |
|---|---|---|---|---|---|---|---|
| Qualcomm → QCOM | United States | $193.8bn | 0.672% | -0.011 pp | +0.363 pp | +28.6% | Yes |
| Advanced Micro Devices → AMD | United States | $147.9bn | 0.513% | -0.133 pp | +0.309 pp | +45.9% | No |
| Texas Instruments → TXN | United States | $157.0bn | 0.545% | -0.056 pp | +0.228 pp | +1.1% | No |
| Nvidia → NVDA | United States | $61.0bn | 0.211% | -0.065 pp | +0.194 pp | +78.0% | No |
| Intel → INTC | United States | $194.2bn | 0.674% | -0.002 pp | +0.180 pp | -19.4% | No |
| Analog Devices → ADI | United States | $83.9bn | 0.291% | +0.067 pp | +0.176 pp | +4.6% | Yes |
| NXP Semiconductors → NXPI | United States | $49.9bn | 0.173% | -0.028 pp | +0.173 pp | +5.3% | No |
| Micron Technology → MU | United States | $99.5bn | 0.345% | +0.028 pp | +0.141 pp | -2.7% | Yes |
| Microchip Technology → MCHP | United States | $39.1bn | 0.136% | -0.021 pp | +0.095 pp | -6.7% | Yes |
| Broadcom → AVGO | United States | $24.3bn | 0.084% | +0.007 pp | +0.046 pp | +28.7% | Yes |
| Monolithic Power Systems → MPWR | United States | $21.3bn | 0.074% | -0.012 pp | +0.040 pp | +23.2% | No |
| Skyworks Solutions → SWKS | United States | $22.7bn | 0.079% | -0.006 pp | +0.020 pp | -21.2% | 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.