Southwest Airlines Co. short interest
Short interest in Southwest Airlines Co. was 28.2 million shares at the 31 August 2026 settlement, up 12.3% on the previous settlement, with 6.41 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 | 28,150,523 | +12.3% | 4,391,664 | 6.41 |
| 14 August 2026 | 25,062,844 | -23.8% | 4,593,495 | 5.46 |
| 31 July 2026 | 32,904,494 | +4.2% | 5,801,770 | 5.67 |
| 15 July 2026 | 31,577,502 | +1.3% | 5,140,364 | 6.14 |
| 30 June 2026 | 31,162,829 | -2.7% | 8,301,421 | 3.75 |
| 15 June 2026 | 32,024,477 | +9.5% | 5,613,521 | 5.70 |
| 29 May 2026 | 29,255,490 | +24.3% | 7,178,435 | 4.08 |
| 15 May 2026 | 23,540,203 | +3.8% | 6,429,384 | 3.66 |
| 30 April 2026 | 22,685,540 | +17.3% | 7,872,119 | 2.88 |
| 15 April 2026 | 19,343,197 | -5.4% | 7,413,007 | 2.61 |
| 31 March 2026 | 20,445,702 | -9.0% | 8,494,319 | 2.41 |
| 13 March 2026 | 22,476,745 | -8.1% | 11,400,023 | 1.97 |
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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