Arm Holdings plc short interest
Short interest in Arm Holdings plc was 15.5 million shares at the 15 September 2026 settlement, down 7.3% on the previous settlement, with 3.94 days to cover at an average daily volume of 3.9 million shares, as reported to FINRA.
| Settlement | Shares short | Change | Average daily volume | Days to cover |
|---|---|---|---|---|
| 15 September 2026 | 15,521,694 | -7.3% | 3,942,824 | 3.94 |
| 31 August 2026 | 16,740,615 | -8.3% | 3,817,181 | 4.39 |
| 14 August 2026 | 18,264,105 | +8.3% | 4,430,142 | 4.12 |
| 31 July 2026 | 16,867,253 | -3.4% | 6,369,077 | 2.65 |
| 15 July 2026 | 17,460,573 | +1.4% | 5,976,106 | 2.92 |
| 30 June 2026 | 17,227,301 | +5.2% | 11,645,226 | 1.48 |
| 15 June 2026 | 16,369,236 | -11.6% | 12,842,901 | 1.27 |
| 29 May 2026 | 18,511,799 | -1.5% | 12,978,732 | 1.43 |
| 15 May 2026 | 18,788,059 | +16.6% | 11,223,549 | 1.67 |
| 30 April 2026 | 16,114,440 | +1.0% | 10,555,237 | 1.53 |
| 15 April 2026 | 15,953,489 | +3.3% | 6,068,217 | 2.63 |
| 31 March 2026 | 15,447,396 | +5.1% | 10,092,031 | 1.53 |
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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