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Thermo Fisher Scientific
TMO · United States · Life Sciences Tools & Services · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.317%
12M weight contribution
-0.027 pp
3M weight contribution
+0.051 pp
12M price return
+22.7%
Share of matched S&P 500 members
Monthly observations through May 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 |
|---|---|---|---|---|---|
| May 2026 | $183.0bn | 0.317% | -0.027 pp | +22.7% | No |
| Apr 2026 | $177.9bn | 0.241% | -0.147 pp | +12.1% | No |
| Mar 2026 | $182.6bn | 0.266% | -0.180 pp | -0.9% | No |
| Feb 2026 | $193.6bn | 0.266% | -0.181 pp | -1.1% | No |
| Jan 2026 | $217.4bn | 0.416% | -0.092 pp | -2.9% | Yes |
| Dec 2025 | $217.7bn | 0.426% | -0.025 pp | +11.8% | Yes |
| Nov 2025 | $222.0bn | 0.436% | -0.011 pp | +11.9% | Yes |
| Oct 2025 | $213.2bn | 0.418% | -0.073 pp | +4.2% | Yes |
| Sep 2025 | $183.1bn | 0.367% | -0.183 pp | -21.3% | Yes |
| Aug 2025 | $186.1bn | 0.386% | -0.182 pp | -19.6% | Yes |
| Jul 2025 | $176.5bn | 0.372% | -0.047 pp | -23.5% | No |
| Jun 2025 | $153.1bn | 0.330% | -0.066 pp | -26.4% | No |
| May 2025 | $152.1bn | 0.345% | -0.070 pp | -28.9% | No |
| Apr 2025 | $161.8bn | 0.389% | -0.239 pp | -24.3% | No |
| Mar 2025 | $187.7bn | 0.446% | -0.169 pp | -14.1% | No |
| Feb 2025 | $199.6bn | 0.446% | -0.177 pp | -7.0% | No |
| Jan 2025 | $228.6bn | 0.508% | -0.111 pp | +11.2% | Yes |
| Dec 2024 | $199.0bn | 0.451% | -0.160 pp | -1.7% | No |
| Nov 2024 | $202.6bn | 0.447% | -0.150 pp | +7.1% | No |
| Oct 2024 | $208.7bn | 0.490% | -0.093 pp | +23.2% | Yes |
| Sep 2024 | $236.3bn | 0.550% | -0.102 pp | +22.5% | Yes |
| Aug 2024 | $235.0bn | 0.568% | -0.118 pp | +10.7% | Yes |
| Jul 2024 | $234.1bn | 0.420% | -0.042 pp | +12.1% | No |
| Jun 2024 | $211.1bn | 0.396% | -0.070 pp | +6.3% | 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.