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Observatory · observe first
Lam Research
LRCX · United States · Semiconductor Materials & Equipment · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.033%
12M weight contribution
+0.033 pp
3M weight contribution
+0.017 pp
12M price return
+140.5%
Share of matched S&P 500 members
Monthly observations through May 2021
Company price index
A separate dimension from market allocation
Historical observations
Most recent 24 observations at or before the selected month
| Month | Market cap | Universe weight | 12M weight change | 12M return | Above 6M weight average |
|---|---|---|---|---|---|
| May 2021 | $9.3bn | 0.033% | +0.033 pp | +140.5% | Yes |
| Apr 2021 | $8.8bn | 0.032% | +0.011 pp | +146.2% | Yes |
| Mar 2021 | $8.5bn | 0.017% | +0.017 pp | +151.2% | No |
| Feb 2021 | $8.1bn | 0.016% | +0.016 pp | +96.5% | No |
| Jan 2021 | $7.0bn | 0.017% | -0.005 pp | +65.0% | Yes |
| Dec 2020 | $6.8bn | 0.028% | +0.007 pp | +64.2% | Yes |
| Nov 2020 | $6.5bn | 0.028% | +0.008 pp | +72.7% | Yes |
| Oct 2020 | $4.9bn | 0.023% | +0.003 pp | +28.5% | Yes |
| Sep 2020 | $4.8bn | 0.000% | -0.018 pp | +46.2% | No |
| Aug 2020 | $4.9bn | 0.000% | -0.017 pp | +62.9% | No |
| Jul 2020 | $5.5bn | 0.000% | -0.017 pp | +84.3% | No |
| Jun 2020 | $4.7bn | 0.000% | -0.015 pp | +75.5% | No |
| May 2020 | $4.0bn | 0.000% | -0.015 pp | +60.1% | No |
| Apr 2020 | $3.7bn | 0.021% | +0.003 pp | +25.7% | Yes |
| Mar 2020 | $3.5bn | 0.000% | -0.016 pp | +36.9% | No |
| Feb 2020 | $4.3bn | 0.000% | -0.016 pp | +70.2% | No |
| Jan 2020 | $4.3bn | 0.021% | +0.013 pp | +79.6% | Yes |
| Dec 2019 | $4.2bn | 0.021% | +0.013 pp | +119.3% | Yes |
| Nov 2019 | $3.9bn | 0.020% | +0.011 pp | +74.1% | Yes |
| Oct 2019 | $3.9bn | 0.020% | +0.013 pp | +95.8% | Yes |
| Sep 2019 | $3.3bn | 0.018% | +0.010 pp | +56.0% | Yes |
| Aug 2019 | $3.0bn | 0.017% | +0.008 pp | +24.8% | Yes |
| Jul 2019 | $3.1bn | 0.017% | -0.002 pp | +12.3% | Yes |
| Jun 2019 | $2.8bn | 0.015% | -0.002 pp | +11.5% | Yes |
Its weight is estimated market cap divided by the total estimated market cap of matched S&P 500 members for the month. This is not an official float-adjusted S&P index weight.