UMC short interest
United Microelectronics Corporation · Technology · Semiconductors · settlement date 2026-09-30
| Shares short | 27,794,121 |
|---|---|
| Change vs prior report | -10,606,140 (-27.6%) |
| Change over six months | -8.2% |
| Days to cover | 2.39 (sector: 2.83) |
| Average daily volume | 11,615,278 |
| Rank in Technology | #443 of 719 by days to cover |
UMC short interest, last 12 months
| Settlement | Shares short | Change | Days to cover | Avg daily volume |
|---|---|---|---|---|
| 2026-09-30 | 27,794,121 | -27.6% | 2.39 | 11,615,278 |
| 2026-09-15 | 38,400,261 | +14.1% | 3.56 | 10,796,618 |
| 2026-08-31 | 33,668,171 | +13.4% | 2.96 | 11,387,541 |
| 2026-08-14 | 29,695,086 | -13.2% | 2.58 | 11,518,388 |
| 2026-07-31 | 34,193,634 | +66.7% | 1.90 | 17,966,337 |
| 2026-07-15 | 20,511,587 | -21.6% | 1.24 | 16,495,511 |
| 2026-06-30 | 26,177,159 | +3.3% | 1.31 | 20,022,281 |
| 2026-06-15 | 25,331,010 | -2.9% | 1.35 | 18,766,216 |
| 2026-05-29 | 26,098,399 | -3.0% | 1.46 | 17,881,650 |
| 2026-05-15 | 26,916,938 | +0.9% | 1.64 | 16,420,260 |
| 2026-04-30 | 26,664,075 | +3.2% | 1.77 | 15,089,895 |
| 2026-04-15 | 25,829,756 | -14.7% | 3.07 | 8,405,258 |
| 2026-03-31 | 30,266,600 | -11.5% | 3.70 | 8,189,437 |
| 2026-03-13 | 34,188,481 | +12.3% | 3.98 | 8,586,222 |
| 2026-02-27 | 30,437,470 | -3.7% | 4.66 | 6,529,546 |
| 2026-02-13 | 31,611,829 | -0.8% | 2.99 | 10,580,372 |
| 2026-01-30 | 31,857,208 | -33.6% | 1.73 | 18,377,538 |
| 2026-01-15 | 48,007,369 | +14.1% | 4.07 | 11,791,503 |
| 2025-12-31 | 42,091,913 | -8.3% | 6.51 | 6,468,290 |
| 2025-12-15 | 45,911,313 | -4.1% | 4.91 | 9,342,293 |
| 2025-11-28 | 47,854,483 | -5.4% | 5.78 | 8,284,842 |
| 2025-11-14 | 50,568,495 | -2.8% | 6.06 | 8,339,152 |
| 2025-10-31 | 52,022,809 | +8.3% | 6.88 | 7,565,953 |
| 2025-10-15 | 48,044,444 | -12.2% | 5.69 | 8,446,717 |
| 2025-09-30 | 54,732,633 | -3.4% | 7.40 | 7,391,317 |
import finzdata as yf
yf.Ticker("UMC").short_interest # every report since 2017
yf.Client().short_interest(["UMC"], start="2018-01-01")Technology short interest · UMC price history · Who owns UMC · All short interest