Fortinet, Inc. short interest
Short interest in Fortinet, Inc. was 13.6 million shares at the 31 August 2026 settlement, down 4.5% on the previous settlement, with 3.05 days to cover at an average daily volume of 4.4 million shares, as reported to FINRA.
| Settlement | Shares short | Change | Average daily volume | Days to cover |
|---|---|---|---|---|
| 31 August 2026 | 13,556,993 | -4.5% | 4,438,873 | 3.05 |
| 14 August 2026 | 14,198,087 | -1.3% | 4,696,012 | 3.02 |
| 31 July 2026 | 14,384,628 | -0.8% | 5,860,787 | 2.45 |
| 15 July 2026 | 14,492,724 | -3.8% | 4,628,961 | 3.13 |
| 30 June 2026 | 15,056,605 | -19.9% | 7,595,492 | 1.98 |
| 15 June 2026 | 18,802,691 | +11.5% | 6,498,753 | 2.89 |
| 29 May 2026 | 16,866,836 | -14.2% | 6,126,124 | 2.75 |
| 15 May 2026 | 19,647,622 | +2.9% | 6,953,329 | 2.83 |
| 30 April 2026 | 19,090,539 | -1.4% | 4,838,509 | 3.95 |
| 15 April 2026 | 19,357,643 | +2.4% | 6,158,557 | 3.14 |
| 31 March 2026 | 18,901,077 | -1.3% | 6,478,214 | 2.92 |
| 13 March 2026 | 19,147,172 | +8.2% | 5,657,672 | 3.38 |
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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