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iRhythm Holdings, Inc. short interest

3.1M shares of iRhythm Holdings were sold short at the 15 October 2026 settlement, near the middle of its range over the last year (2.3M to 3.4M). Short sellers would need 6.8 days of normal trading to buy them back.

Shares sold short3.1Mat 15 Oct 2026
Change on the settlement before+2.1%+20% over a year
Days to cover6.77at 457K shares a day
Of shares in issue9.40%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 (2.3M to 3.4M), and the share price moved -29% 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

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    Every settlement since 29 Dec 2017 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 20263.1M+2.1%457K6.77
    30 September 20263.0M-0.7%519K5.85
    15 September 20263.1M+9.6%549K5.56
    31 August 20262.8M-0.4%496K5.62
    14 August 20262.8M-12.8%841K3.33
    31 July 20263.2M-6.3%485K6.62
    15 July 20263.4M+6.0%594K5.78
    30 June 20263.2M+10.4%705K4.59
    15 June 20262.9M-7.1%506K5.79
    29 May 20263.2M+1.7%521K6.06
    15 May 20263.1M+8.7%607K5.11
    30 April 20262.9M-5.5%430K6.63
    15 April 20263.0M+2.6%388K7.78
    31 March 20262.9M+1.8%564K5.22
    13 March 20262.9M-14.8%730K3.96
    27 February 20263.4M-0.2%682K4.98
    13 February 20263.4M+20.1%665K5.11
    30 January 20262.8M+2.9%609K4.65
    15 January 20262.8M+19.6%818K3.36
    31 December 20252.3M-5.8%389K5.91
    15 December 20252.4M-5.1%414K5.89
    28 November 20252.6M+1.2%529K4.86
    14 November 20252.5M+8.9%519K4.89
    31 October 20252.3M-9.9%434K5.37
    15 October 20252.6M+1.8%317K8.17
    30 September 20252.5M-4.4%379K6.72
    15 September 20252.7M-4.2%416K6.39
    29 August 20252.8M+4.6%370K7.51
    15 August 20252.7M+5.5%659K4.03
    31 July 20252.5M+0.9%369K6.81
    15 July 20252.5M-5.6%506K4.93
    30 June 20252.6M+2.5%380K6.95
    13 June 20252.6M+5.3%468K5.51
    30 May 20252.4M-9.0%575K4.26
    15 May 20252.7M-10.0%769K3.50
    30 April 20253.0M-4.2%297K10.05
    15 April 20253.1M+6.3%445K7.01
    31 March 20252.9M+0.4%285K10.30
    14 March 20252.9M-0.7%465K6.29
    28 February 20252.9M+12.2%657K4.49
    14 February 20252.6M+8.3%354K7.42
    31 January 20252.4M+4.1%391K6.21
    15 January 20252.3M+4.2%478K4.88
    31 December 20242.2M+1.1%277K8.07
    13 December 20242.2M+4.2%300K7.37
    29 November 20242.1M-12.0%459K4.63
    15 November 20242.4M-12.0%562K4.29
    31 October 20242.7M+8.6%807K3.40
    15 October 20242.5M-1.4%575K4.39
    30 September 20242.6M-4.9%404K6.33
    13 September 20242.7M+8.6%581K4.63
    30 August 20242.5M-3.6%470K5.28
    15 August 20242.6M-14.0%743K3.46
    31 July 20243.0M+2.9%332K9.00
    15 July 20242.9M+0.8%309K9.40
    28 June 20242.9M-1.9%408K7.06
    14 June 20242.9M+2.3%414K7.09
    31 May 20242.9M-6.2%360K7.96
    15 May 20243.1M+2.5%465K6.58
    30 April 20243.0M+6.0%294K10.15
    15 April 20242.8M+10.1%509K5.52
    28 March 20242.6M+3.5%422K6.05
    15 March 20242.5M+37.1%709K3.48
    29 February 20241.8M+44.2%451K3.99
    15 February 20241.2M-2.6%281K4.45
    31 January 20241.3M+11.5%295K4.34
    12 January 20241.1M-19.3%362K3.17
    29 December 20231.4M-23.8%300K4.74
    15 December 20231.9M-0.6%391K4.77
    30 November 20231.9M+1.3%323K5.81
    15 November 20231.9M-18.4%459K4.04
    31 October 20232.3M-10.1%343K6.61
    13 October 20232.5M-2.0%333K7.58
    29 September 20232.6M+10.2%446K5.78
    15 September 20232.3M+0.5%355K6.58
    31 August 20232.3M-0.6%259K8.98
    15 August 20232.3M+6.1%439K5.33
    31 July 20232.2M-13.2%338K6.52
    14 July 20232.5M+0.1%291K8.74
    30 June 20232.5M+6.9%395K6.43
    15 June 20232.4M+5.1%686K3.46
    31 May 20232.3M+0.5%263K8.58
    15 May 20232.2M+1.4%314K7.16
    28 April 20232.2M-2.7%234K9.47
    14 April 20232.3M+6.1%287K7.94
    31 March 20232.1M-5.9%302K7.11
    15 March 20232.3M+7.0%462K4.94
    28 February 20232.1M+6.3%495K4.31
    15 February 20232.0M+26.0%311K6.45
    31 January 20231.6M-4.3%182K8.76
    13 January 20231.7M+6.4%382K4.36
    30 December 20221.6M+11.4%260K6.02
    15 December 20221.4M+8.6%325K4.32
    30 November 20221.3M-3.3%276K4.68
    15 November 20221.3M-1.2%683K1.96
    31 October 20221.4M-0.1%372K3.64
    14 October 20221.4M-3.0%299K4.53
    30 September 20221.4M-10.3%553K2.52
    15 September 20221.6M-7.2%352K4.42
    31 August 20221.7M-12.7%241K6.95
    15 August 20221.9M-0.9%330K5.82
    29 July 20221.9M+4.9%363K5.34
    15 July 20221.8M+13.4%598K3.09
    30 June 20221.6M+0.1%461K3.53
    15 June 20221.6M+10.7%388K4.20
    31 May 20221.5M-13.2%287K5.12
    13 May 20221.7M+7.7%502K3.38
    29 April 20221.6M+3.6%278K5.66
    14 April 20221.5M+7.5%323K4.70
    31 March 20221.4M+15.4%494K2.86
    15 March 20221.2M+8.9%290K4.22
    28 February 20221.1M-8.6%344K3.27
    15 February 20221.2M+8.2%196K6.27
    31 January 20221.1M-7.7%369K3.08
    14 January 20221.2M+35.3%677K1.82
    31 December 2021910K-7.2%492K1.85
    15 December 2021981K+21.3%309K3.18
    30 November 2021808K-38.9%377K2.14
    15 November 20211.3M+11.3%1.0M1.28
    29 October 20211.2M-1.8%226K5.26
    15 October 20211.2M+17.0%316K3.83
    30 September 20211.0M-37.5%428K2.42
    15 September 20211.7M-3.1%843K1.96
    31 August 20211.7M+5.1%237K7.20
    13 August 20211.6M-16.0%398K4.07
    30 July 20211.9M-10.2%324K5.96
    15 July 20212.2M-2.9%478K4.49
    30 June 20212.2M+22.2%552K4.01
    15 June 20211.8M-20.1%973K1.86
    28 May 20212.3M+0.7%415K5.46
    14 May 20212.3M-5.9%582K3.86
    30 April 20212.4M+3.0%636K3.76
    15 April 20212.3M-17.4%1.3M1.79
    31 March 20212.8M+0.1%400K7.01
    15 March 20212.8M-14.7%523K5.36
    26 February 20213.3M-4.8%483K6.81
    12 February 20213.5M-0.8%625K5.53
    29 January 20213.5M-14.2%375K9.29
    15 January 20214.1M-1.3%310K13.10
    31 December 20204.1M+4.9%356K11.54
    15 December 20203.9M+13.4%679K5.78
    30 November 20203.5M+2.9%271K12.77
    13 November 20203.4M-0.6%286K11.77
    30 October 20203.4M+12.3%241K14.04
    15 October 20203.0M+3.9%231K13.05
    30 September 20202.9M+2.5%266K10.92
    15 September 20202.8M-1.8%280K10.12
    31 August 20202.9M-5.2%401K7.19
    14 August 20203.0M-20.1%770K3.95
    31 July 20203.8M-6.3%224K16.97
    15 July 20204.1M+3.7%289K14.06
    30 June 20203.9M+3.6%347K11.29
    15 June 20203.8M+4.4%360K10.50
    29 May 20203.6M-2.8%301K12.00
    15 May 20203.7M-12.7%489K7.62
    30 April 20204.3M-6.0%254K16.81
    15 April 20204.5M-5.1%294K15.43
    31 March 20204.8M-3.8%490K9.76
    13 March 20205.0M-14.8%470K10.58
    28 February 20205.8M-8.2%354K16.46
    14 February 20206.4M-4.0%189K33.56
    31 January 20206.6M-3.4%428K15.45
    15 January 20206.9M+3.1%319K21.46
    31 December 20196.6M+1.2%522K12.73
    13 December 20196.6M+6.8%228K28.81
    29 November 20196.1M+13.6%240K25.63
    15 November 20195.4M+1.9%517K10.47
    31 October 20195.3M-0.1%281K18.90
    15 October 20195.3M-3.5%268K19.81
    30 September 20195.5M+5.1%292K18.89
    13 September 20195.2M+2.7%453K11.59
    30 August 20195.1M+1.7%245K20.83
    15 August 20195.0M+1.3%369K13.60
    31 July 20195.0M+3.1%323K15.37
    15 July 20194.8M+2.0%224K21.44
    28 June 20194.7M-0.8%289K16.30
    14 June 20194.7M+3.0%288K16.49
    31 May 20194.6M-3.1%356K12.97
    15 May 20194.8M-3.0%459K10.36
    30 April 20194.9M+1.9%430K11.40
    15 April 20194.8M+13.0%598K8.05
    29 March 20194.3M-8.2%817K5.21
    15 March 20194.6M+35.9%610K7.62
    28 February 20193.4M+15.1%287K11.91
    15 February 20193.0M+6.7%419K7.09
    31 January 20192.8M+2.0%297K9.38
    15 January 20192.7M+0.6%320K8.53
    31 December 20182.7M+17.7%329K8.25
    14 December 20182.3M+6.0%309K7.45
    30 November 20182.2M+11.0%365K5.96
    15 November 20182.0M-6.0%386K5.07
    31 October 20182.1M+3.7%466K4.47
    15 October 20182.0M+6.0%267K7.53
    28 September 20181.9M+19.5%302K6.28
    14 September 20181.6M+3.5%327K4.85
    31 August 20181.5M-16.7%230K6.67
    15 August 20181.8M-5.3%396K4.65
    31 July 20181.9M-5.9%317K6.14
    13 July 20182.1M-2.9%257K8.03
    29 June 20182.1M+7.4%463K4.60
    15 June 20182.0M-1.4%319K6.21
    31 May 20182.0M-5.9%242K8.30
    15 May 20182.1M+8.9%270K7.89
    30 April 20182.0M-1.2%207K9.46
    13 April 20182.0M+1.7%153K12.93
    29 March 20182.0M-1.2%175K11.18
    15 March 20182.0M+1.3%207K9.54
    28 February 20182.0M+13.6%291K6.70
    15 February 20181.7M+19.2%255K6.75
    31 January 20181.4M-0.9%214K6.73
    12 January 20181.5M+12.7%202K7.19
    29 December 20171.3M147K8.80
    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.