Thermo Fisher Scientific Inc. short interest
Short interest in Thermo Fisher Scientific Inc. was 5.7 million shares at the 31 August 2026 settlement, up 19.9% on the previous settlement, with 3.39 days to cover at an average daily volume of 1.7 million shares, as reported to FINRA.
| Settlement | Shares short | Change | Average daily volume | Days to cover |
|---|---|---|---|---|
| 31 August 2026 | 5,690,588 | +19.9% | 1,676,704 | 3.39 |
| 14 August 2026 | 4,744,180 | -4.8% | 1,656,677 | 2.86 |
| 31 July 2026 | 4,985,877 | -5.9% | 2,624,071 | 1.90 |
| 15 July 2026 | 5,298,322 | -1.0% | 1,778,419 | 2.98 |
| 30 June 2026 | 5,351,535 | +21.1% | 2,443,884 | 2.19 |
| 15 June 2026 | 4,418,353 | -5.9% | 2,154,544 | 2.05 |
| 29 May 2026 | 4,693,391 | -1.7% | 2,815,227 | 1.67 |
| 15 May 2026 | 4,773,531 | -1.9% | 2,503,388 | 1.91 |
| 30 April 2026 | 4,865,972 | +7.2% | 2,293,616 | 2.12 |
| 15 April 2026 | 4,538,918 | +11.4% | 1,667,529 | 2.72 |
| 31 March 2026 | 4,072,471 | +5.0% | 2,107,962 | 1.93 |
| 13 March 2026 | 3,879,909 | +9.3% | 2,210,155 | 1.76 |
FINRA publishes consolidated short interest twice a month, about ten days after each settlement. Days to cover is shares short over average daily volume. Short interest as a share of the float is not shown: the float is not in the public record.
Source
FINRA equity short interest data, the public dataset.
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