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
Semiconductors1.78%-1.44 ppSystems Software2.83%-1.44 ppApplication Software1.75%-1.03 ppIT Consulting & Other Services0.86%-0.88 ppCommunications Equipment0.82%-0.50 ppTechnology Hardware, Storage & Peripherals1.24%-0.45 ppSemiconductor Materials & Equipment0.12%-0.23 ppElectronic Manufacturing Services0.09%-0.12 ppElectronic Components0.10%-0.08 ppElectronic Equipment & Instruments0.10%-0.06 ppInternet Services & Infrastructure0.10%-0.03 ppTechnology Distributors0.00%+0.00 pp
3 · Sub-industry
Inside Semiconductors
Semiconductors · weight
1.78%
Industry change · 12M
-1.44 pp
Semiconductors · contribution
-1.444 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 2018 · 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 | $214.0bn | 0.725% | -0.568 pp | -0.560 pp | -0.8% | No |
| Texas Instruments → TXN | United States | $90.2bn | 0.306% | -0.330 pp | -0.311 pp | -13.6% | No |
| Qualcomm → QCOM | United States | $92.4bn | 0.313% | -0.236 pp | -0.263 pp | -5.2% | No |
| Micron Technology → MU | United States | $42.8bn | 0.145% | -0.212 pp | -0.143 pp | -13.7% | No |
| Analog Devices → ADI | United States | $31.1bn | 0.105% | -0.103 pp | -0.088 pp | -7.5% | No |
| Skyworks Solutions → SWKS | United States | $15.5bn | 0.053% | -0.046 pp | -0.049 pp | -9.8% | No |
| Microchip Technology → MCHP | United States | $7.7bn | 0.026% | -0.038 pp | -0.037 pp | -30.0% | No |
| Broadcom → AVGO | United States | $9.2bn | 0.031% | -0.025 pp | +0.031 pp | -6.7% | No |
| Advanced Micro Devices → AMD | United States | $18.2bn | 0.062% | -0.042 pp | -0.014 pp | +32.5% | No |
| Nvidia → NVDA | United States | $3.2bn | 0.011% | -0.011 pp | -0.010 pp | -14.1% | 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.