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Stock research / United States / PKG / Short interest

Packaging Corp. of America short interest

3.2M shares of Packaging Corp. of America were sold short at the 15 October 2026 settlement, near the middle of its range over the last year (2.2M to 5.2M). Short sellers would need 6.4 days of normal trading to buy them back.

Shares sold short3.2Mat 15 Oct 2026
Change on the settlement before+6.9%+41% over a year
Days to cover6.40at 495K shares a day
Of shares in issue3.56%shares short over shares outstanding
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 (2.2M to 5.2M), and the share price moved +19% 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
    15 October 20263.2M+6.9%495K6.40
    30 September 20263.0M-11.3%611K4.86
    15 September 20263.3M+25.3%641K5.23
    31 August 20262.7M-9.0%498K5.36
    14 August 20262.9M-10.5%483K6.08
    31 July 20263.3M-8.2%888K3.70
    15 July 20263.6M+0.9%547K6.54
    30 June 20263.5M-12.2%644K5.50
    15 June 20264.0M+3.8%652K6.19
    29 May 20263.9M-3.4%768K5.06
    15 May 20264.0M+3.5%648K6.21
    30 April 20263.9M+14.2%1.1M3.70
    15 April 20263.4M+1.9%764K4.45
    31 March 20263.3M-36.1%1.3M2.60
    13 March 20265.2M+35.1%943K5.54
    27 February 20263.9M+13.2%1.1M3.46
    13 February 20263.4M+7.5%1.0M3.39
    30 January 20263.2M+29.5%1.4M2.25
    15 January 20262.5M-5.6%767K3.20
    31 December 20252.6M-17.7%772K3.37
    15 December 20253.2M+28.9%853K3.71
    28 November 20252.5M+0.6%684K3.59
    14 November 20252.4M-8.6%811K3.00
    31 October 20252.7M+18.8%953K2.80
    15 October 20252.2M+6.6%570K3.94
    30 September 20252.1M-18.6%601K3.50
    15 September 20252.6M+24.5%716K3.61
    29 August 20252.1M+22.0%1.0M2.00
    15 August 20251.7M+2.2%538K3.16
    31 July 20251.7M+10.8%779K2.14
    15 July 20251.5M-20.1%709K2.12
    30 June 20251.9M-4.5%685K2.74
    13 June 20252.0M+13.1%775K2.54
    30 May 20251.7M-0.6%712K2.44
    15 May 20251.7M+7.7%846K2.07
    30 April 20251.6M+6.0%938K1.73
    15 April 20251.5M+15.3%1.1M1.45
    31 March 20251.3M+17.1%931K1.43
    14 March 20251.1M-1.2%1.1M1.03
    28 February 20251.1M-16.0%762K1.51
    14 February 20251.4M-2.4%934K1.46
    31 January 20251.4M-22.3%1.1M1.33
    15 January 20251.8M+17.0%867K2.08
    31 December 20241.5M+22.3%873K1.77
    13 December 20241.3M+15.2%640K1.97
    29 November 20241.1M-13.5%605K1.81
    15 November 20241.3M+3.0%626K2.02
    31 October 20241.2M-18.8%658K1.87
    15 October 20241.5M+3.0%391K3.88
    30 September 20241.5M-10.7%550K2.68
    13 September 20241.6M+18.9%525K3.14
    30 August 20241.4M-1.4%525K2.64
    15 August 20241.4M+2.5%546K2.57
    31 July 20241.4M-7.8%670K2.05
    15 July 20241.5M+8.2%499K2.98
    28 June 20241.4M-14.4%648K2.12
    14 June 20241.6M-0.5%397K4.05
    31 May 20241.6M+13.5%505K3.20
    15 May 20241.4M+4.3%497K2.86
    30 April 20241.4M+6.4%896K1.52
    15 April 20241.3M-9.5%462K2.78
    28 March 20241.4M-14.0%595K2.38
    15 March 20241.6M-7.8%756K2.18
    29 February 20241.8M-3.6%724K2.47
    15 February 20241.9M+19.1%608K3.05
    31 January 20241.6M+2.6%818K1.90
    12 January 20241.5M+5.0%696K2.18
    29 December 20231.4M-15.3%452K3.19
    15 December 20231.7M+0.9%778K2.19
    30 November 20231.7M+3.9%800K2.11
    15 November 20231.6M+10.9%569K2.86
    31 October 20231.5M-18.9%723K2.03
    13 October 20231.8M+3.2%533K3.39
    29 September 20231.8M+0.6%460K3.81
    15 September 20231.7M-4.6%560K3.11
    31 August 20231.8M-9.4%355K5.14
    15 August 20232.0M-22.7%610K3.30
    31 July 20232.6M+8.9%861K3.03
    14 July 20232.4M+1.9%584K4.10
    30 June 20232.4M-33.3%773K3.04
    15 June 20233.5M+33.4%652K5.41
    31 May 20232.6M-1.2%551K4.79
    15 May 20232.7M-5.9%646K4.14
    28 April 20232.8M-4.3%726K3.92
    14 April 20233.0M+9.8%649K4.57
    31 March 20232.7M-20.7%959K2.82
    15 March 20233.4M+40.0%727K4.69
    28 February 20232.4M-4.7%532K4.58
    15 February 20232.6M+8.5%632K4.05
    31 January 20232.4M+52.6%952K2.48
    13 January 20231.5M-9.0%557K2.77
    30 December 20221.7M-11.5%471K3.60
    15 December 20221.9M-3.6%617K3.11
    30 November 20222.0M-6.6%692K2.88
    15 November 20222.1M-7.4%929K2.30
    31 October 20222.3M+0.1%743K3.10
    14 October 20222.3M-23.7%605K3.81
    30 September 20223.0M+29.6%1.0M2.88
    15 September 20222.3M+4.3%657K3.54
    31 August 20222.2M+15.0%506K4.41
    15 August 20221.9M-2.9%654K2.97
    29 July 20222.0M+6.3%738K2.71
    15 July 20221.9M+15.1%612K3.07
    30 June 20221.6M-11.2%744K2.20
    15 June 20221.8M+43.8%604K3.05
    31 May 20221.3M-12.0%724K1.77
    13 May 20221.5M+18.8%605K2.40
    29 April 20221.2M-20.4%612K2.00
    14 April 20221.5M+9.3%605K2.54
    31 March 20221.4M-11.6%606K2.32
    15 March 20221.6M-4.6%737K2.16
    28 February 20221.7M-10.4%649K2.57
    15 February 20221.9M-12.2%731K2.55
    31 January 20222.1M-9.8%1.1M1.98
    14 January 20222.4M-2.0%628K3.74
    31 December 20212.4M+9.2%822K2.92
    15 December 20212.2M+6.9%806K2.72
    30 November 20212.1M-2.7%739K2.78
    15 November 20212.1M-7.7%468K4.51
    29 October 20212.3M+18.8%853K2.68
    15 October 20211.9M+10.0%657K2.93
    30 September 20211.7M-14.8%604K2.90
    15 September 20212.1M+33.5%727K2.82
    31 August 20211.5M+6.1%521K2.95
    13 August 20211.4M+5.4%480K3.02
    30 July 20211.4M-13.8%601K2.29
    15 July 20211.6M-3.7%536K2.98
    30 June 20211.7M+23.9%597K2.77
    15 June 20211.3M-9.5%814K1.64
    28 May 20211.5M+2.3%417K3.54
    14 May 20211.4M+10.5%332K4.34
    30 April 20211.3M+3.9%443K2.95
    15 April 20211.3M-7.9%482K2.61
    31 March 20211.4M-13.9%599K2.27
    15 March 20211.6M+19.3%589K2.69
    26 February 20211.3M+8.0%449K2.96
    12 February 20211.2M+3.1%695K1.77
    29 January 20211.2M+2.3%550K2.17
    15 January 20211.2M+11.9%728K1.60
    31 December 20201.0M-13.7%484K2.15
    15 December 20201.2M-2.5%520K2.32
    30 November 20201.2M-8.9%441K2.80
    13 November 20201.4M-2.4%483K2.81
    30 October 20201.4M-18.2%427K3.26
    15 October 20201.7M-10.6%450K3.79
    30 September 20201.9M-23.9%735K2.59
    15 September 20202.5M+8.9%688K3.64
    31 August 20202.3M+23.3%489K4.71
    14 August 20201.9M-1.7%980K1.90
    31 July 20201.9M-3.9%624K3.04
    15 July 20202.0M-10.1%578K3.42
    30 June 20202.2M-16.1%913K2.41
    15 June 20202.6M+40.6%588K4.45
    29 May 20201.9M+8.5%543K3.43
    15 May 20201.7M-1.1%621K2.76
    30 April 20201.7M+1.4%771K2.25
    15 April 20201.7M-4.6%960K1.78
    31 March 20201.8M-39.5%1.2M1.53
    13 March 20203.0M-1.2%1.0M2.83
    28 February 20203.0M-10.2%1.1M2.84
    14 February 20203.3M-16.0%706K4.73
    31 January 20204.0M+20.7%861K4.62
    15 January 20203.3M-0.5%821K4.01
    31 December 20193.3M+1.4%599K5.52
    13 December 20193.3M+10.6%571K5.72
    29 November 20193.0M-6.2%589K5.01
    15 November 20193.1M+7.2%629K5.00
    31 October 20192.9M-1.3%777K3.78
    15 October 20193.0M+25.9%757K3.92
    30 September 20192.4M-33.7%649K3.64
    13 September 20193.6M+44.1%845K4.21
    30 August 20192.5M-15.9%655K3.77
    15 August 20192.9M+23.4%933K3.15
    31 July 20192.4M-15.0%1.0M2.36
    15 July 20192.8M+64.4%1.8M1.52
    28 June 20191.7M-21.6%1.2M1.44
    14 June 20192.2M+43.7%881K2.46
    31 May 20191.5M-6.7%765K1.97
    15 May 20191.6M-9.1%574K2.82
    30 April 20191.8M-9.6%1.1M1.66
    15 April 20192.0M+12.7%800K2.46
    29 March 20191.7M-20.4%793K2.21
    15 March 20192.2M+43.9%1.1M1.97
    28 February 20191.5M-8.9%795K1.92
    15 February 20191.7M+32.3%824K2.03
    31 January 20191.3M-21.6%991K1.28
    15 January 20191.6M+46.4%933K1.73
    31 December 20181.1M+8.1%1.3M1.00
    14 December 20181.0M-22.1%828K1.23
    30 November 20181.3M-2.4%662K1.98
    15 November 20181.3M-9.3%889K1.51
    31 October 20181.5M+17.8%1.7M1.00
    15 October 20181.3M-19.1%1.7M1.00
    28 September 20181.6M+20.1%725K2.14
    14 September 20181.3M-3.0%596K2.17
    31 August 20181.3M-4.6%650K2.05
    15 August 20181.4M+1.5%600K2.33
    31 July 20181.4M-4.1%787K1.75
    13 July 20181.4M+2.9%623K2.30
    29 June 20181.4M+16.2%755K1.85
    15 June 20181.2M-13.4%723K1.66
    31 May 20181.4M-6.9%784K1.77
    15 May 20181.5M-18.9%690K2.16
    30 April 20181.8M+31.5%833K2.21
    13 April 20181.4M+9.5%610K2.29
    29 March 20181.3M-29.4%976K1.31
    15 March 20181.8M+18.5%705K2.56
    28 February 20181.5M-9.8%630K2.42
    15 February 20181.7M+16.1%1.0M1.63
    31 January 20181.5M-19.4%891K1.64
    12 January 20181.8M+7.5%712K2.54
    29 December 20171.7M542K3.10
    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.