Union Pacific Corp. short interest
Short interest in Union Pacific Corp. was 27.7 million shares at the 31 August 2026 settlement, up 6.9% on the previous settlement, with 10.75 days to cover at an average daily volume of 2.6 million shares, as reported to FINRA.
| Settlement | Shares short | Change | Average daily volume | Days to cover |
|---|---|---|---|---|
| 31 August 2026 | 27,740,373 | +6.9% | 2,579,952 | 10.75 |
| 14 August 2026 | 25,944,217 | -1.3% | 2,210,267 | 11.74 |
| 31 July 2026 | 26,281,287 | -6.9% | 3,832,428 | 6.86 |
| 15 July 2026 | 28,233,358 | -0.9% | 2,259,844 | 12.49 |
| 30 June 2026 | 28,484,157 | -3.3% | 3,050,284 | 9.34 |
| 15 June 2026 | 29,458,961 | -0.7% | 2,514,889 | 11.71 |
| 29 May 2026 | 29,652,815 | +2.5% | 3,782,385 | 7.84 |
| 15 May 2026 | 28,916,554 | -1.5% | 2,430,564 | 11.90 |
| 30 April 2026 | 29,367,094 | +10.7% | 3,724,971 | 7.88 |
| 15 April 2026 | 26,536,709 | -5.9% | 2,465,823 | 10.76 |
| 31 March 2026 | 28,203,927 | +6.3% | 2,982,149 | 9.46 |
| 13 March 2026 | 26,520,645 | -4.8% | 2,862,657 | 9.26 |
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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