Observatory · observe first
Illumina, Inc.
ILMN · United States · Life Sciences Tools & Services · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Latest available · not live
20182026
Universe weight
0.069%
12M weight contribution
+0.069 pp
3M weight contribution
+0.069 pp
12M price return
+188.2%
Share of matched S&P 500 members
Monthly observations through Sep 2026
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 |
|---|---|---|---|---|---|
| Sep 2026 | $41.3bn | 0.069% | +0.069 pp | +188.2% | Yes |
| May 2024 | $16.2bn | 0.031% | -0.044 pp | -47.0% | No |
| Apr 2024 | $19.0bn | 0.055% | -0.052 pp | -40.1% | No |
| Mar 2024 | $21.2bn | 0.059% | -0.063 pp | -41.0% | No |
| Feb 2024 | $21.6bn | 0.062% | -0.046 pp | -29.8% | Yes |
| Jan 2024 | $22.1bn | 0.066% | -0.046 pp | -33.2% | Yes |
| Dec 2023 | $21.5bn | 0.064% | -0.048 pp | -31.1% | No |
| Nov 2023 | $15.7bn | 0.049% | -0.064 pp | -53.3% | No |
| Oct 2023 | $16.8bn | 0.057% | -0.067 pp | -52.2% | No |
| Sep 2023 | $21.1bn | 0.071% | -0.044 pp | -28.0% | No |
| Aug 2023 | $25.4bn | 0.081% | -0.029 pp | -18.1% | No |
| Jul 2023 | $29.6bn | 0.064% | -0.049 pp | -11.3% | No |
| Jun 2023 | $28.8bn | 0.067% | -0.043 pp | +1.7% | No |
| May 2023 | $30.2bn | 0.075% | -0.057 pp | -17.9% | No |
| Apr 2023 | $31.6bn | 0.107% | -0.057 pp | -30.7% | No |
| Mar 2023 | $35.7bn | 0.122% | -0.058 pp | -33.4% | Yes |
| Feb 2023 | $30.6bn | 0.108% | -0.065 pp | -39.0% | No |
| Jan 2023 | $32.8bn | 0.112% | -0.066 pp | -38.6% | No |
| Dec 2022 | $30.9bn | 0.112% | -0.074 pp | -46.9% | No |
| Nov 2022 | $33.4bn | 0.113% | -0.074 pp | -40.3% | No |
| Oct 2022 | $35.0bn | 0.124% | -0.074 pp | -44.9% | Yes |
| Sep 2022 | $29.2bn | 0.115% | -0.088 pp | -53.0% | No |
| Aug 2022 | $30.9bn | 0.110% | -0.108 pp | -55.9% | No |
| Jul 2022 | $33.1bn | 0.114% | -0.128 pp | -56.3% | No |
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.