United Microelectronics Corporation short interest
Short interest in United Microelectronics Corporation was 38.4 million shares at the 15 September 2026 settlement, up 14.1% on the previous settlement, with 3.56 days to cover at an average daily volume of 10.8 million shares, as reported to FINRA.
| Settlement | Shares short | Change | Average daily volume | Days to cover |
|---|---|---|---|---|
| 15 September 2026 | 38,400,261 | +14.1% | 10,796,618 | 3.56 |
| 31 August 2026 | 33,668,171 | +13.4% | 11,387,541 | 2.96 |
| 14 August 2026 | 29,695,086 | -13.2% | 11,518,388 | 2.58 |
| 31 July 2026 | 34,193,634 | +66.7% | 17,966,337 | 1.90 |
| 15 July 2026 | 20,511,587 | -21.6% | 16,495,511 | 1.24 |
| 30 June 2026 | 26,177,159 | +3.3% | 20,022,281 | 1.31 |
| 15 June 2026 | 25,331,010 | -2.9% | 18,766,216 | 1.35 |
| 29 May 2026 | 26,098,399 | -3.0% | 17,881,650 | 1.46 |
| 15 May 2026 | 26,916,938 | +0.9% | 16,420,260 | 1.64 |
| 30 April 2026 | 26,664,075 | +3.2% | 15,089,895 | 1.77 |
| 15 April 2026 | 25,829,756 | -14.7% | 8,405,258 | 3.07 |
| 31 March 2026 | 30,266,600 | -11.5% | 8,189,437 | 3.70 |
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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