Illumina, Inc. short interest
Short interest in Illumina, Inc. was 9.7 million shares at the 31 August 2026 settlement, up 2.7% on the previous settlement, with 5.15 days to cover at an average daily volume of 1.9 million shares, as reported to FINRA.
| Settlement | Shares short | Change | Average daily volume | Days to cover |
|---|---|---|---|---|
| 31 August 2026 | 9,720,715 | +2.7% | 1,886,108 | 5.15 |
| 14 August 2026 | 9,464,776 | +17.5% | 1,960,212 | 4.83 |
| 31 July 2026 | 8,056,689 | -8.0% | 1,785,975 | 4.51 |
| 15 July 2026 | 8,752,414 | +15.7% | 1,994,295 | 4.39 |
| 30 June 2026 | 7,565,780 | -17.8% | 2,057,816 | 3.68 |
| 15 June 2026 | 9,207,473 | +19.2% | 2,033,968 | 4.53 |
| 29 May 2026 | 7,723,045 | +2.9% | 1,655,267 | 4.67 |
| 15 May 2026 | 7,503,141 | +14.6% | 1,866,522 | 4.02 |
| 30 April 2026 | 6,546,522 | -8.8% | 1,398,756 | 4.68 |
| 15 April 2026 | 7,178,290 | +3.2% | 1,373,893 | 5.22 |
| 31 March 2026 | 6,955,511 | -3.8% | 1,429,180 | 4.87 |
| 13 March 2026 | 7,230,669 | +0.9% | 1,602,817 | 4.51 |
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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