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United Microelectronics Corporation short interest

33.7M shares of United Microelectronics were sold short at the 30 October 2026 settlement, near the middle of its range over the last year (20.5M to 52.0M). Short sellers would need 2.8 days of normal trading to buy them back.

Shares sold short33.7Mat 30 Oct 2026
Change on the settlement before+11.6%-35% over a year
Days to cover2.80at 12.0M shares a day
Of shares in issuen/a
New to this? How to read this page
  1. Short interest is the number of shares investors have borrowed and sold, betting the price will fall, and not yet bought back.
  2. Days to cover is shares short over an average day's trading: how many days it would take short sellers to buy them all back. Above 5 or so is high.
  3. Rising short interest says more investors are betting against the stock. A crowded short can also rise fast if shorts rush to buy back.
  4. Brokers report it twice a month to FINRA, about ten days after each settlement date.
  5. What is short interest?

Short interest, days to cover and the price

Short interest is near the middle of its range over the last year (20.5M to 52.0M), and the share price moved +95% over the last year.

Shares sold shortDays to coverShare price

Three charts on one timeline. Top: shares sold short at each settlement. Middle: days to cover, taller meaning shorts would need longer to buy back. Bottom: the share price, so you can see whether shorts added as the price fell or rose.

How it compares

every company on the site

    The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.

    Every settlement since 29 Dec 2017 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    30 October 202633.7M+11.6%12.0M2.80
    15 October 202630.2M+8.6%12.1M2.50
    30 September 202627.8M-27.6%11.6M2.39
    15 September 202638.4M+14.1%10.8M3.56
    31 August 202633.7M+13.4%11.4M2.96
    14 August 202629.7M-13.2%11.5M2.58
    31 July 202634.2M+66.7%18.0M1.90
    15 July 202620.5M-21.6%16.5M1.24
    30 June 202626.2M+3.3%20.0M1.31
    15 June 202625.3M-2.9%18.8M1.35
    29 May 202626.1M-3.0%17.9M1.46
    15 May 202626.9M+0.9%16.4M1.64
    30 April 202626.7M+3.2%15.1M1.77
    15 April 202625.8M-14.7%8.4M3.07
    31 March 202630.3M-11.5%8.2M3.70
    13 March 202634.2M+12.3%8.6M3.98
    27 February 202630.4M-3.7%6.5M4.66
    13 February 202631.6M-0.8%10.6M2.99
    30 January 202631.9M-33.6%18.4M1.73
    15 January 202648.0M+14.1%11.8M4.07
    31 December 202542.1M-8.3%6.5M6.51
    15 December 202545.9M-4.1%9.3M4.91
    28 November 202547.9M-5.4%8.3M5.78
    14 November 202550.6M-2.8%8.3M6.06
    31 October 202552.0M+8.3%7.6M6.88
    15 October 202548.0M-12.2%8.4M5.69
    30 September 202554.7M-3.4%7.4M7.40
    15 September 202556.6M+7.9%4.1M13.76
    29 August 202552.5M+3.5%6.0M8.78
    15 August 202550.7M-3.6%7.5M6.78
    31 July 202552.6M-6.9%8.0M6.57
    15 July 202556.5M-8.7%6.1M9.25
    30 June 202561.9M-11.4%9.1M6.77
    13 June 202569.9M-6.5%9.9M7.07
    30 May 202574.7M+2.9%8.3M8.98
    15 May 202572.6M+4.4%11.0M6.57
    30 April 202569.5M-10.3%12.2M5.68
    15 April 202577.5M-2.5%18.0M4.29
    31 March 202579.5M-8.9%14.6M5.44
    14 March 202587.2M+4.7%18.3M4.78
    28 February 202583.3M+4.6%15.3M5.44
    14 February 202579.7M+3.2%12.4M6.44
    31 January 202577.2M+2.0%14.1M5.49
    15 January 202575.8M-6.0%10.0M7.57
    31 December 202480.6M-0.2%11.3M7.11
    13 December 202480.7M+2.1%11.4M7.09
    29 November 202479.1M+5.0%9.3M8.47
    15 November 202475.3M+28.7%14.0M5.40
    31 October 202458.5M+9.1%12.9M4.54
    15 October 202453.7M+11.5%9.7M5.56
    30 September 202448.1M+3.7%12.1M3.99
    13 September 202446.4M+2.3%15.5M3.00
    30 August 202445.3M-4.4%11.3M4.00
    15 August 202447.4M+8.4%16.9M2.80
    31 July 202443.8M-19.1%17.9M2.44
    15 July 202454.1M-2.6%9.5M5.68
    28 June 202455.6M-3.7%8.9M6.25
    14 June 202457.7M-3.9%7.2M8.01
    31 May 202460.0M+10.2%8.7M6.90
    15 May 202454.5M-3.5%6.7M8.09
    30 April 202456.5M-5.9%10.4M5.45
    15 April 202460.1M-3.4%7.2M8.39
    28 March 202462.2M+6.4%6.4M9.79
    15 March 202458.5M+2.4%9.5M6.17
    29 February 202457.1M-0.6%6.0M9.52
    15 February 202457.4M-0.0%7.2M7.98
    31 January 202457.4M-5.0%9.5M6.05
    12 January 202460.4M+0.1%6.4M9.37
    29 December 202360.4M-5.4%5.9M10.32
    15 December 202363.8M+0.7%6.1M10.40
    30 November 202363.4M-3.5%5.3M11.98
    15 November 202365.7M+6.2%6.8M9.71
    31 October 202361.9M+2.8%7.8M7.89
    13 October 202360.1M+2.6%5.2M11.64
    29 September 202358.6M+15.4%6.0M9.78
    15 September 202350.8M+1.8%5.3M9.53
    31 August 202349.9M+3.4%5.8M8.60
    15 August 202348.2M+5.9%5.4M8.88
    31 July 202345.6M+3.2%6.8M6.72
    14 July 202344.2M-3.0%6.0M7.31
    30 June 202345.5M-7.9%5.9M7.70
    15 June 202349.4M-8.3%6.2M7.97
    31 May 202353.9M+5.6%8.5M6.37
    15 May 202351.0M+4.7%5.2M9.83
    28 April 202348.7M-2.6%7.4M6.62
    14 April 202350.0M-2.3%5.0M9.95
    31 March 202351.2M-6.6%7.1M7.25
    15 March 202354.8M+0.8%6.7M8.13
    28 February 202354.4M+5.5%7.3M7.49
    15 February 202351.5M-3.3%9.1M5.64
    31 January 202353.3M+2.1%8.0M6.64
    13 January 202352.2M+3.2%7.8M6.71
    30 December 202250.6M+2.4%7.5M6.75
    15 December 202249.4M-1.0%7.2M6.88
    30 November 202249.9M-1.7%8.1M6.15
    15 November 202250.7M-12.1%13.8M3.67
    31 October 202257.7M+12.8%11.6M5.00
    14 October 202251.2M-2.3%12.1M4.23
    30 September 202252.4M+5.8%7.4M7.09
    15 September 202249.5M-3.8%7.0M7.06
    31 August 202251.5M+2.8%6.7M7.65
    15 August 202250.0M-17.0%8.2M6.14
    29 July 202260.3M+5.4%9.9M6.12
    15 July 202257.2M+6.6%10.3M5.54
    30 June 202253.7M+1.3%10.2M5.26
    15 June 202253.0M-3.9%7.7M6.90
    31 May 202255.1M-2.6%7.0M7.85
    13 May 202256.6M-0.1%9.2M6.16
    29 April 202256.6M-7.2%10.1M5.61
    14 April 202261.0M+15.2%9.5M6.40
    31 March 202253.0M+0.7%9.9M5.34
    15 March 202252.6M+3.5%11.2M4.70
    28 February 202250.8M-8.6%9.8M5.18
    15 February 202255.6M+10.1%10.0M5.54
    31 January 202250.5M+20.6%14.6M3.47
    14 January 202241.9M+15.6%8.4M5.01
    31 December 202136.2M+10.8%5.1M7.17
    15 December 202132.7M-3.2%8.5M3.83
    30 November 202133.8M-7.1%6.3M5.39
    15 November 202136.4M+35.7%8.2M4.44
    29 October 202126.8M+18.1%9.8M2.75
    15 October 202122.7M+25.0%8.1M2.79
    30 September 202118.2M-7.5%5.3M3.46
    15 September 202119.6M+3.5%7.4M2.65
    31 August 202119.0M+37.2%8.4M2.25
    13 August 202113.8M+21.0%6.9M2.00
    30 July 202111.4M-8.6%8.3M1.38
    15 July 202112.5M-11.7%6.0M2.09
    30 June 202114.2M+1.9%5.1M2.75
    15 June 202113.9M-8.1%5.3M2.64
    28 May 202115.1M+24.6%7.3M2.09
    14 May 202112.2M+28.3%6.1M1.99
    30 April 20219.5M-15.9%6.5M1.46
    15 April 202111.3M-1.7%4.6M2.47
    31 March 202111.5M-24.2%5.0M2.29
    15 March 202115.1M-0.4%7.7M1.97
    26 February 202115.2M-2.6%7.2M2.11
    12 February 202115.6M-9.8%6.5M2.41
    29 January 202117.3M+83.6%10.2M1.69
    15 January 20219.4M+21.5%5.7M1.64
    31 December 20207.7M+2.4%3.7M2.10
    15 December 20207.6M+41.5%7.0M1.07
    30 November 20205.3M+213.1%4.1M1.32
    13 November 20201.7M+20.5%3.7M1.00
    30 October 20201.4M+30.0%3.6M1.00
    15 October 20201.1M+44.3%3.3M1.00
    30 September 2020754K-3.5%2.5M1.00
    15 September 2020782K+59.9%1.5M1.00
    31 August 2020489K-17.1%1.2M1.00
    14 August 2020589K-42.7%3.0M1.00
    31 July 20201.0M+29.2%2.8M1.00
    15 July 2020796K-10.6%831K1.00
    30 June 2020890K-14.2%571K1.56
    15 June 20201.0M+8.2%1.6M1.00
    29 May 2020958K+23.0%542K1.77
    15 May 2020779K+22.2%646K1.21
    30 April 2020637K-40.1%727K1.00
    15 April 20201.1M-7.4%909K1.17
    31 March 20201.1M+40.9%1.7M1.00
    13 March 2020815K+143.0%1.2M1.00
    28 February 2020335K-53.5%898K1.00
    14 February 2020722K-32.0%734K1.00
    31 January 20201.1M+9.7%357K2.98
    15 January 2020967K-50.7%368K2.63
    31 December 20192.0M-4.5%542K3.62
    13 December 20192.1M+85.9%1.1M1.89
    29 November 20191.1M-29.6%615K1.80
    15 November 20191.6M+18.8%451K3.48
    31 October 20191.3M-2.4%312K4.23
    15 October 20191.4M+6.3%590K2.30
    30 September 20191.3M-3.7%674K1.89
    13 September 20191.3M-2.1%493K2.68
    30 August 20191.4M-15.1%556K2.43
    15 August 20191.6M+1.3%507K3.14
    31 July 20191.6M+5.9%452K3.48
    15 July 20191.5M-5.4%742K2.00
    28 June 20191.6M-25.3%726K2.16
    14 June 20192.1M-9.6%527K3.99
    31 May 20192.3M-10.4%508K4.57
    15 May 20192.6M-20.2%457K5.67
    30 April 20193.2M+5.6%637K5.10
    15 April 20193.1M-6.6%427K7.20
    29 March 20193.3M-4.8%407K8.09
    15 March 20193.5M+3.7%758K4.56
    28 February 20193.3M+4.8%488K6.83
    15 February 20193.2M-3.1%855K3.72
    31 January 20193.3M-18.3%704K4.66
    15 January 20194.0M+7.4%787K5.11
    31 December 20183.7M+10.6%1.1M3.37
    14 December 20183.4M+16.4%1.4M2.50
    30 November 20182.9M-1.1%914K3.18
    15 November 20182.9M+46.4%2.2M1.34
    31 October 20182.0M+46.4%1.3M1.53
    15 October 20181.4M-5.4%952K1.44
    28 September 20181.5M-1.7%919K1.58
    14 September 20181.5M+0.7%827K1.79
    31 August 20181.5M+15.7%634K2.31
    15 August 20181.3M-4.4%1.2M1.10
    31 July 20181.3M-53.5%2.4M1.00
    13 July 20182.9M-13.3%1.9M1.50
    29 June 20183.3M+8.1%978K3.36
    15 June 20183.0M-37.2%1.3M2.28
    31 May 20184.8M-5.2%462K10.47
    15 May 20185.1M-9.9%360K14.20
    30 April 20185.7M-11.3%585K9.69
    13 April 20186.4M+12.2%989K6.46
    29 March 20185.7M-52.6%1.5M3.72
    15 March 201812.0M-15.4%1.0M11.61
    28 February 201814.2M-4.9%522K27.21
    15 February 201814.9M-0.1%1.4M10.53
    31 January 201814.9M+22.0%1.0M14.28
    12 January 201812.2M-6.7%976K12.55
    29 December 201713.1M1.1M11.85
    Shares in millions (M) or thousands (K); hold the pointer on a figure for the exact count. FINRA publishes consolidated short interest twice a month, about ten days after each settlement.