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Stock research / United States / BLK / Short interest

BlackRock, Inc. short interest

2.1M shares of BlackRock were sold short at the 15 October 2026 settlement, near the top of its range over the last year (1.2M to 2.2M). Short sellers would need 3.5 days of normal trading to buy them back.

Shares sold short2.1Mat 15 Oct 2026
Change on the settlement before+4.7%+68% over a year
Days to cover3.48at 613K shares a day
Of shares in issue1.38%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 top of its range over the last year (1.2M to 2.2M), and the share price moved -2% 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 20262.1M+4.7%613K3.48
    30 September 20262.0M+0.0%566K3.61
    15 September 20262.0M+6.7%506K4.03
    31 August 20261.9M+5.4%587K3.25
    14 August 20261.8M-16.7%579K3.13
    31 July 20262.2M+3.9%782K2.78
    15 July 20262.1M+1.0%808K2.59
    30 June 20262.1M+3.2%1.1M1.97
    15 June 20262.0M-0.1%721K2.79
    29 May 20262.0M-7.0%696K2.89
    15 May 20262.2M+25.2%538K4.01
    30 April 20261.7M-9.9%614K2.81
    15 April 20261.9M+7.7%800K2.40
    31 March 20261.8M+15.0%923K1.93
    13 March 20261.5M+6.9%1.1M1.39
    27 February 20261.4M-1.7%779K1.86
    13 February 20261.5M-2.1%892K1.65
    30 January 20261.5M+21.9%748K2.01
    15 January 20261.2M+1.4%789K1.56
    31 December 20251.2M-3.9%475K2.56
    15 December 20251.3M-30.6%623K2.03
    28 November 20251.8M+46.8%777K2.35
    14 November 20251.2M+3.2%532K2.33
    31 October 20251.2M-5.3%735K1.64
    15 October 20251.3M-16.3%664K1.91
    30 September 20251.5M-28.7%600K2.53
    15 September 20252.1M+16.8%476K4.47
    29 August 20251.8M+13.4%444K4.11
    15 August 20251.6M+6.9%516K3.12
    31 July 20251.5M-8.1%659K2.29
    15 July 20251.6M-15.7%633K2.59
    30 June 20251.9M+2.8%664K2.93
    13 June 20251.9M+11.7%530K3.56
    30 May 20251.7M-13.6%606K2.79
    15 May 20252.0M+14.8%659K2.97
    30 April 20251.7M-12.7%660K2.58
    15 April 20252.0M+33.2%1.2M1.70
    31 March 20251.5M-22.6%1.2M1.23
    14 March 20251.9M+15.9%847K2.24
    28 February 20251.6M+12.2%965K1.69
    14 February 20251.5M-7.0%814K1.79
    31 January 20251.6M+18.6%785K2.00
    15 January 20251.3M-3.1%816K1.62
    31 December 20241.4M-13.7%749K1.82
    13 December 20241.6M-18.0%787K2.01
    29 November 20241.9M-9.9%681K2.83
    15 November 20242.1M+4.5%654K3.27
    31 October 20242.0M+4.6%451K4.53
    15 October 20242.0M+8.6%574K3.41
    30 September 20241.8M-0.9%508K3.55
    13 September 20241.8M-2.3%439K4.14
    30 August 20241.9M+22.4%404K4.60
    15 August 20241.5M+4.1%553K2.75
    31 July 20241.5M-7.1%673K2.17
    15 July 20241.6M-7.4%538K2.92
    28 June 20241.7M+2.2%560K3.03
    14 June 20241.7M-11.3%541K3.07
    31 May 20241.9M+10.3%595K3.15
    15 May 20241.7M+4.1%594K2.86
    30 April 20241.6M-3.6%585K2.79
    15 April 20241.7M-7.3%781K2.17
    28 March 20241.8M+2.7%521K3.50
    15 March 20241.8M+12.6%629K2.82
    29 February 20241.6M+16.7%538K2.93
    15 February 20241.4M-22.6%559K2.42
    31 January 20241.7M+2.1%712K2.45
    12 January 20241.7M-16.6%605K2.83
    29 December 20232.1M-4.3%466K4.40
    15 December 20232.1M+20.1%921K2.33
    30 November 20231.8M+49.0%655K2.72
    15 November 20231.2M-20.7%643K1.86
    31 October 20231.5M-14.2%663K2.28
    13 October 20231.8M-20.2%659K2.67
    29 September 20232.2M-15.4%510K4.32
    15 September 20232.6M+5.0%733K3.56
    31 August 20232.5M+4.1%440K5.65
    15 August 20232.4M+8.7%489K4.88
    31 July 20232.2M+3.8%571K3.84
    14 July 20232.1M+14.4%653K3.23
    30 June 20231.8M-12.3%626K2.95
    15 June 20232.1M-3.5%576K3.65
    31 May 20232.2M-0.2%791K2.76
    15 May 20232.2M+0.1%578K3.78
    28 April 20232.2M+1.3%525K4.17
    14 April 20232.2M-7.7%582K3.70
    31 March 20232.3M-11.9%747K3.13
    15 March 20232.7M+4.2%751K3.53
    28 February 20232.5M-0.7%648K3.93
    15 February 20232.6M+2.0%711K3.60
    31 January 20232.5M-8.1%663K3.79
    13 January 20232.7M-11.5%858K3.19
    30 December 20223.1M+2.9%612K5.05
    15 December 20223.0M-5.8%819K3.67
    30 November 20223.2M-0.9%820K3.88
    15 November 20223.2M-9.8%981K3.28
    31 October 20223.6M+7.8%907K3.93
    14 October 20223.3M+10.3%934K3.54
    30 September 20223.0M-3.5%959K3.13
    15 September 20223.1M+21.9%713K4.36
    31 August 20222.5M-4.3%567K4.50
    15 August 20222.7M+16.2%678K3.93
    29 July 20222.3M+7.6%654K3.50
    15 July 20222.1M-6.7%619K3.44
    30 June 20222.3M+5.9%879K2.59
    15 June 20222.2M-3.3%847K2.54
    31 May 20222.2M+8.8%1.4M1.58
    13 May 20222.0M+13.2%1.1M1.81
    29 April 20221.8M+10.6%908K1.99
    14 April 20221.6M-0.7%802K2.04
    31 March 20221.6M-1.3%725K2.27
    15 March 20221.7M+10.8%1.1M1.58
    28 February 20221.5M-4.7%721K2.09
    15 February 20221.6M-11.8%955K1.65
    31 January 20221.8M+25.7%977K1.84
    14 January 20221.4M-4.5%704K2.03
    31 December 20211.5M-8.4%420K3.56
    15 December 20211.6M+14.9%549K2.97
    30 November 20211.4M-8.7%643K2.21
    15 November 20211.6M-3.6%391K3.98
    29 October 20211.6M-6.0%416K3.88
    15 October 20211.7M-1.4%674K2.54
    30 September 20211.7M+8.4%630K2.76
    15 September 20211.6M+7.7%401K4.00
    31 August 20211.5M-7.8%373K4.00
    13 August 20211.6M-1.8%366K4.41
    30 July 20211.6M+1.5%593K2.77
    15 July 20211.6M+13.4%631K2.57
    30 June 20211.4M-14.7%648K2.20
    15 June 20211.7M-13.6%443K3.78
    28 May 20211.9M+1.7%492K3.94
    14 May 20211.9M+6.0%507K3.75
    30 April 20211.8M-10.4%435K4.13
    15 April 20212.0M-4.0%457K4.39
    31 March 20212.1M+9.2%599K3.48
    15 March 20211.9M+30.2%649K2.94
    26 February 20211.5M-13.5%661K2.22
    12 February 20211.7M-2.8%561K3.03
    29 January 20211.7M-5.4%707K2.47
    15 January 20211.8M+14.8%685K2.70
    31 December 20201.6M+5.3%581K2.77
    15 December 20201.5M-2.4%528K2.89
    30 November 20201.6M+15.7%463K3.38
    13 November 20201.4M+16.8%562K2.40
    30 October 20201.2M-13.2%507K2.28
    15 October 20201.3M+10.3%577K2.31
    30 September 20201.2M-7.7%798K1.52
    15 September 20201.3M-11.5%650K2.02
    31 August 20201.5M+7.7%402K3.69
    14 August 20201.4M-22.3%441K3.11
    31 July 20201.8M-2.6%552K3.21
    15 July 20201.8M-12.0%529K3.43
    30 June 20202.1M-10.8%777K2.66
    15 June 20202.3M-14.4%911K2.54
    29 May 20202.7M+37.9%1.6M1.71
    15 May 20202.0M+7.2%2.6M1.00
    30 April 20201.8M+1.9%665K2.75
    15 April 20201.8M+23.7%740K2.43
    31 March 20201.5M+2.2%1.4M1.05
    13 March 20201.4M+6.5%1.3M1.13
    28 February 20201.3M-11.9%908K1.47
    14 February 20201.5M+14.6%608K2.49
    31 January 20201.3M+1.3%592K2.23
    15 January 20201.3M-2.6%499K2.61
    31 December 20191.3M-7.3%358K3.74
    13 December 20191.4M-6.0%429K3.36
    29 November 20191.5M-15.1%400K3.84
    15 November 20191.8M+10.3%499K3.63
    31 October 20191.6M+4.1%468K3.50
    15 October 20191.6M+4.1%600K2.62
    30 September 20191.5M+12.0%659K2.30
    13 September 20191.4M-5.2%631K2.14
    30 August 20191.4M+3.1%619K2.30
    15 August 20191.4M-4.6%637K2.17
    31 July 20191.5M-8.5%507K2.86
    15 July 20191.6M-1.5%419K3.78
    28 June 20191.6M-7.5%549K2.93
    14 June 20191.7M+2.0%509K3.42
    31 May 20191.7M+0.9%428K3.99
    15 May 20191.7M+2.7%491K3.44
    30 April 20191.6M+19.9%632K2.60
    15 April 20191.4M+15.2%453K3.03
    29 March 20191.2M+11.9%557K2.14
    15 March 20191.1M+5.2%642K1.66
    28 February 20191.0M-8.6%477K2.12
    15 February 20191.1M+0.1%569K1.95
    31 January 20191.1M-40.4%829K1.33
    15 January 20191.9M+21.3%731K2.54
    31 December 20181.5M-15.7%911K1.68
    14 December 20181.8M+45.9%877K2.07
    30 November 20181.2M-18.5%689K1.81
    15 November 20181.5M-15.6%775K1.97
    31 October 20181.8M+82.4%1.4M1.32
    15 October 2018992K+6.8%988K1.00
    28 September 2018929K+12.6%471K1.97
    14 September 2018825K-11.9%539K1.53
    31 August 2018936K-7.0%571K1.64
    15 August 20181.0M-12.8%832K1.21
    31 July 20181.2M-7.3%647K1.78
    13 July 20181.2M+4.6%556K2.24
    29 June 20181.2M-13.6%568K2.10
    15 June 20181.4M+1.4%567K2.43
    31 May 20181.4M+2.9%442K3.07
    15 May 20181.3M+3.2%492K2.69
    30 April 20181.3M-6.2%708K1.81
    13 April 20181.4M-10.3%559K2.44
    29 March 20181.5M+0.8%556K2.74
    15 March 20181.5M+9.9%510K2.96
    28 February 20181.4M-13.1%565K2.43
    15 February 20181.6M+19.9%796K1.98
    31 January 20181.3M-3.7%786K1.68
    12 January 20181.4M-5.3%572K2.39
    29 December 20171.4M301K4.81
    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.