Semiconductor Materials & Equipment
Semiconductor Materials & Equipment is gaining market weight. Gained weight for 1 consecutive month.
Most of this industry's gains came from a few companies.
Where did the weight change come from?
12-month contribution in universe percentage points · contributions add to the industry change
The three largest same-direction contributors explain 98% of gross gains. Opposing contributions can make an individual company’s change larger than the industry’s net change.
How has it moved through history?
Share of matched S&P 500 members
Jan 2018 – Oct 2021 · market weight (%)
Relative performance
Industry return versus ACWI · no future data shown
Is participation broad or concentrated?
Actual constituent counts at this date, not the legacy synthetic breadth proxy
This is size concentration, not contribution to the 12-month change. The attribution above measures the latter.
Evidence can disagree
Independent dimensions · no combined score or bullish/bearish verdict
Other evidence and availability
Valuation data: unavailable; shown as zero placeholder.
Attention data: unavailable; shown as zero placeholder.
Actual fund flows: unavailable. No ETF, mutual-fund or institutional flow feed is connected.
Volume / turnover: unavailable in this dataset.
Follow the contribution to individual companies
Sorted by absolute 12-month weight contribution, not investment merit
| Company | Sub-industry | Country | Universe weight | 12M contribution | 12M price return | Revisions |
|---|---|---|---|---|---|---|
| Applied Materials → AMAT | Semiconductor Materials & Equipment | United States | 0.412% | +0.156 pp | +132.7% | 0.0 |
| Teradyne → TER | Semiconductor Materials & Equipment | United States | 0.076% | +0.007 pp | +57.9% | 0.0 |
| KLA Corporation → KLAC | Semiconductor Materials & Equipment | United States | 0.019% | +0.004 pp | +91.5% | 0.0 |
| Lam Research → LRCX | Semiconductor Materials & Equipment | United States | 0.027% | +0.003 pp | +66.3% | 0.0 |
Underlying monthly industry observations
| Month | Weight | 1M change | 3M change | 6M change | 12M change | Relative return · 12M |
|---|---|---|---|---|---|---|
| Oct 2021 | 0.534% | +0.016 pp | -0.027 pp | -0.033 pp | +0.171 pp | +55.4% |
| Sep 2021 | 0.518% | -0.003 pp | -0.071 pp | +0.212 pp | +0.517 pp | +57.3% |
| Aug 2021 | 0.521% | -0.039 pp | -0.061 pp | +0.236 pp | +0.521 pp | +58.5% |
| Jul 2021 | 0.560% | -0.028 pp | -0.006 pp | +0.277 pp | +0.560 pp | +51.6% |
| Jun 2021 | 0.588% | +0.007 pp | +0.282 pp | +0.145 pp | +0.588 pp | +58.4% |
| May 2021 | 0.582% | +0.015 pp | +0.296 pp | +0.140 pp | +0.581 pp | +64.7% |
| Apr 2021 | 0.567% | +0.261 pp | +0.283 pp | +0.204 pp | +0.276 pp | +71.8% |
| Mar 2021 | 0.306% | +0.021 pp | -0.138 pp | +0.306 pp | +0.306 pp | +77.2% |
| Feb 2021 | 0.285% | +0.001 pp | -0.157 pp | +0.285 pp | +0.285 pp | +53.0% |
| Jan 2021 | 0.284% | -0.160 pp | -0.079 pp | +0.284 pp | -0.012 pp | +40.7% |
| Dec 2020 | 0.444% | +0.002 pp | +0.443 pp | +0.443 pp | +0.135 pp | +25.5% |
| Nov 2020 | 0.442% | +0.079 pp | +0.442 pp | +0.442 pp | +0.140 pp | +27.7% |
| Oct 2020 | 0.363% | +0.363 pp | +0.363 pp | +0.072 pp | +0.067 pp | +8.7% |
| Sep 2020 | 0.000% | +0.000 pp | +0.000 pp | +0.000 pp | -0.276 pp | +10.8% |
| Aug 2020 | 0.000% | -0.000 pp | -0.000 pp | +0.000 pp | -0.270 pp | +13.8% |
| Jul 2020 | 0.000% | -0.000 pp | -0.290 pp | -0.296 pp | -0.274 pp | +26.7% |
| Jun 2020 | 0.000% | +0.000 pp | +0.000 pp | -0.308 pp | -0.252 pp | +37.4% |
| May 2020 | 0.000% | -0.290 pp | +0.000 pp | -0.302 pp | -0.236 pp | +41.4% |
| Apr 2020 | 0.290% | +0.290 pp | -0.006 pp | -0.005 pp | +0.029 pp | +23.0% |
| Mar 2020 | 0.000% | -0.000 pp | -0.308 pp | -0.276 pp | -0.242 pp | +33.8% |
| Feb 2020 | 0.000% | -0.296 pp | -0.302 pp | -0.270 pp | -0.236 pp | +48.0% |
| Jan 2020 | 0.296% | -0.013 pp | +0.000 pp | +0.022 pp | +0.159 pp | +32.7% |
| Dec 2019 | 0.309% | +0.007 pp | +0.033 pp | +0.057 pp | +0.184 pp | +51.8% |
| Nov 2019 | 0.302% | +0.006 pp | +0.031 pp | +0.066 pp | +0.167 pp | +40.6% |
| Oct 2019 | 0.296% | +0.020 pp | +0.021 pp | +0.034 pp | +0.174 pp | +51.7% |
| Sep 2019 | 0.276% | +0.005 pp | +0.024 pp | +0.034 pp | +0.142 pp | +32.3% |
| Aug 2019 | 0.271% | -0.004 pp | +0.035 pp | +0.034 pp | +0.119 pp | +15.3% |
| Jul 2019 | 0.274% | +0.022 pp | +0.013 pp | +0.137 pp | -0.041 pp | +1.7% |
| Jun 2019 | 0.252% | +0.016 pp | +0.010 pp | +0.127 pp | -0.057 pp | -5.2% |
| May 2019 | 0.236% | -0.025 pp | -0.001 pp | +0.101 pp | -0.105 pp | -20.2% |
| Apr 2019 | 0.261% | +0.019 pp | +0.124 pp | +0.139 pp | -0.088 pp | -12.2% |
| Mar 2019 | 0.242% | +0.006 pp | +0.118 pp | +0.109 pp | -0.147 pp | -27.2% |
| Feb 2019 | 0.237% | +0.099 pp | +0.102 pp | +0.086 pp | -0.155 pp | -29.6% |
| Jan 2019 | 0.137% | +0.013 pp | +0.016 pp | -0.177 pp | -0.213 pp | -18.6% |
| Dec 2018 | 0.125% | -0.010 pp | -0.009 pp | -0.185 pp | -0.226 pp | -26.5% |
| Nov 2018 | 0.135% | +0.013 pp | -0.016 pp | -0.206 pp | -0.216 pp | -22.4% |
| Oct 2018 | 0.122% | -0.012 pp | -0.193 pp | -0.227 pp | -0.229 pp | -30.6% |
| Sep 2018 | 0.134% | -0.017 pp | -0.176 pp | -0.256 pp | -0.217 pp | -25.1% |
| Aug 2018 | 0.151% | -0.164 pp | -0.190 pp | -0.241 pp | -0.200 pp | -15.9% |
| Jul 2018 | 0.315% | +0.005 pp | -0.034 pp | -0.036 pp | -0.036 pp | -5.2% |
| Jun 2018 | 0.309% | -0.032 pp | -0.080 pp | -0.041 pp | -0.041 pp | -7.7% |
| May 2018 | 0.341% | -0.008 pp | -0.051 pp | -0.010 pp | -0.010 pp | +1.1% |
| Apr 2018 | 0.349% | -0.040 pp | -0.002 pp | -0.002 pp | -0.002 pp | -1.6% |
| Mar 2018 | 0.389% | -0.003 pp | +0.039 pp | +0.039 pp | +0.039 pp | +10.4% |
| Feb 2018 | 0.392% | +0.041 pp | +0.041 pp | +0.041 pp | +0.041 pp | +12.1% |
| Jan 2018 | 0.351% | +0.000 pp | +0.000 pp | +0.000 pp | +0.000 pp | +0.0% |
How are these descriptive states defined?
Gaining / losing: 12-month weight change above +0.005pp / below −0.005pp. Direction and speed are separate dimensions, not mutually exclusive recommendations.
Accelerating / slowing: compare the most recent 3M change with the preceding 3M change. Accelerating means a positive change speeds up by >0.02pp. Slowing means the magnitude of movement declines by >0.02pp. A falling industry can also slow.
Reversing: the last two 3M changes have opposite signs, outside a ±0.005pp tolerance. Persistence counts consecutive same-direction monthly changes.
Broad / concentrated: company attribution, not a market-cap concentration shortcut. Concentrated means the three largest same-direction contributors account for ≥70% of gross same-direction changes; otherwise broad requires ≥60% of constituents moving with the industry. Other cases are mixed.
Weights use matched S&P 500 members’ market-cap estimates, based on SEC-reported shares available by each month-end and monthly closing prices. Companies without a matched price or share record are omitted, so the denominator is the matched sample rather than every index member. These are not official float-adjusted S&P weights. Flow is not measured.