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Stock research / United States / CDNA / Short interest

CareDx, Inc. short interest

6.7M shares of CareDx were sold short at the 15 October 2026 settlement, near the middle of its range over the last year (5.6M to 8.4M). Short sellers would need 4.5 days of normal trading to buy them back.

Shares sold short6.7Mat 15 Oct 2026
Change on the settlement before+1.9%+11% over a year
Days to cover4.49at 1.5M shares a day
Of shares in issue13.04%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 (5.6M to 8.4M), and the share price moved +380% 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 20266.7M+1.9%1.5M4.49
    30 September 20266.6M+4.6%1.4M4.56
    15 September 20266.3M+8.0%1.0M6.29
    31 August 20265.8M+0.7%1.2M4.83
    14 August 20265.8M-5.6%1.2M5.03
    31 July 20266.1M-0.8%1.4M4.25
    15 July 20266.2M-25.8%797K7.76
    30 June 20268.3M-1.1%1.1M7.27
    15 June 20268.4M+32.4%785K10.75
    29 May 20266.4M-2.1%703K9.06
    15 May 20266.5M-5.6%575K11.33
    30 April 20266.9M+7.8%1.0M6.81
    15 April 20266.4M-0.3%561K11.41
    31 March 20266.4M-1.6%642K9.99
    13 March 20266.5M+3.9%571K11.41
    27 February 20266.3M+3.2%586K10.71
    13 February 20266.1M+5.7%722K8.43
    30 January 20265.8M+3.1%579K9.94
    15 January 20265.6M-5.3%957K5.83
    31 December 20255.9M-5.9%560K10.52
    15 December 20256.3M-4.7%928K6.74
    28 November 20256.6M-5.6%690K9.52
    14 November 20257.0M+6.0%1.5M4.63
    31 October 20256.6M+8.6%970K6.77
    15 October 20256.0M-3.2%1.1M5.66
    30 September 20256.2M-3.7%1.5M4.17
    15 September 20256.5M-6.1%1.5M4.43
    29 August 20256.9M+6.7%1.5M4.67
    15 August 20256.5M+4.7%1.4M4.47
    31 July 20256.2M-3.4%3.0M2.03
    15 July 20256.4M+0.0%894K7.15
    30 June 20256.4M+1.9%1.0M6.39
    13 June 20256.3M-3.4%1.0M6.21
    30 May 20256.5M-0.9%1.3M5.14
    15 May 20256.6M+7.0%1.7M3.85
    30 April 20256.1M+1.3%764K8.02
    15 April 20256.1M+8.9%776K7.80
    31 March 20255.6M-3.2%549K10.12
    14 March 20255.7M+10.9%886K6.48
    28 February 20255.2M+8.3%905K5.72
    14 February 20254.8M+7.3%1.1M4.51
    31 January 20254.5M+1.5%735K6.07
    15 January 20254.4M+10.6%901K4.87
    31 December 20244.0M+27.3%756K5.25
    13 December 20243.1M-6.6%641K4.86
    29 November 20243.3M+8.7%672K4.96
    15 November 20243.1M-10.9%969K3.17
    31 October 20243.4M-0.8%816K4.22
    15 October 20243.5M-5.0%1.0M3.43
    30 September 20243.7M-0.0%739K4.95
    13 September 20243.7M+10.7%703K5.21
    30 August 20243.3M+3.2%1.1M3.11
    15 August 20243.2M-7.9%1.4M2.26
    31 July 20243.5M-11.2%776K4.48
    15 July 20243.9M+2.7%482K8.13
    28 June 20243.8M-28.8%1.1M3.61
    14 June 20245.4M-0.1%610K8.80
    31 May 20245.4M+1.2%763K7.04
    15 May 20245.3M+3.2%1.3M4.18
    30 April 20245.1M+9.6%720K7.14
    15 April 20244.7M-9.4%523K8.97
    28 March 20245.2M+18.9%615K8.42
    15 March 20244.4M+15.8%1.1M3.90
    29 February 20243.8M+4.6%996K3.78
    15 February 20243.6M+26.5%723K4.98
    31 January 20242.8M+20.4%1.4M2.05
    12 January 20242.4M+2.9%870K2.72
    29 December 20232.3M-27.0%865K2.66
    15 December 20233.2M-7.8%1.5M2.16
    30 November 20233.4M-12.1%1.2M2.79
    15 November 20233.9M-13.7%1.7M2.29
    31 October 20234.5M+10.5%943K4.77
    13 October 20234.1M+16.5%795K5.13
    29 September 20233.5M-10.4%564K6.19
    15 September 20233.9M-5.9%741K5.26
    31 August 20234.1M+2.7%594K6.98
    15 August 20234.0M-8.4%972K4.15
    31 July 20234.4M-17.3%792K5.57
    14 July 20235.3M+6.5%1.4M3.78
    30 June 20235.0M-14.3%1.1M4.39
    15 June 20235.8M+2.4%707K8.25
    31 May 20235.7M-8.1%668K8.53
    15 May 20236.2M+19.2%882K7.03
    28 April 20235.2M+1.6%650K8.00
    14 April 20235.1M-0.1%898K5.70
    31 March 20235.1M+0.4%971K5.28
    15 March 20235.1M+4.5%3.8M1.33
    28 February 20234.9M-1.0%1.1M4.59
    15 February 20234.9M-2.5%806K6.12
    31 January 20235.1M+2.2%725K6.98
    13 January 20235.0M+3.7%1.0M4.74
    30 December 20224.8M+43.6%1.1M4.21
    15 December 20223.3M-26.0%1.1M3.13
    30 November 20224.5M-1.9%823K5.46
    15 November 20224.6M-5.0%1.4M3.32
    31 October 20224.8M+2.9%807K5.99
    14 October 20224.7M-0.9%794K5.91
    30 September 20224.7M+21.9%952K4.98
    15 September 20223.9M+7.0%859K4.53
    31 August 20223.6M+1.2%728K4.99
    15 August 20223.6M-6.4%893K4.02
    29 July 20223.8M-10.5%665K5.77
    15 July 20224.3M+9.3%659K6.50
    30 June 20223.9M+9.0%1.0M3.85
    15 June 20223.6M+14.0%810K4.44
    31 May 20223.2M-25.8%1.1M2.83
    13 May 20224.3M-3.8%1.1M3.80
    29 April 20224.4M+4.6%836K5.29
    14 April 20224.2M-4.3%648K6.53
    31 March 20224.4M+6.5%814K5.43
    15 March 20224.2M-0.6%706K5.89
    28 February 20224.2M+7.5%731K5.72
    15 February 20223.9M+1.8%494K7.88
    31 January 20223.8M+22.7%729K5.24
    14 January 20223.1M-2.5%734K4.24
    31 December 20213.2M-5.5%625K5.11
    15 December 20213.4M-3.0%786K4.30
    30 November 20213.5M-1.0%691K5.04
    15 November 20213.5M-13.6%879K4.00
    29 October 20214.1M-6.2%958K4.25
    15 October 20214.3M-3.6%521K8.34
    30 September 20214.5M+6.4%579K7.78
    15 September 20214.2M+3.5%504K8.41
    31 August 20214.1M+2.6%474K8.62
    13 August 20214.0M+1.3%387K10.29
    30 July 20213.9M+1.6%424K9.27
    15 July 20213.9M-1.4%373K10.38
    30 June 20213.9M-4.1%866K4.53
    15 June 20214.1M-7.6%666K6.14
    28 May 20214.4M-2.6%547K8.10
    14 May 20214.5M+1.2%688K6.61
    30 April 20214.5M-0.9%368K12.23
    15 April 20214.5M-15.1%413K11.00
    31 March 20215.3M+3.6%712K7.50
    15 March 20215.2M+10.5%1.1M4.86
    26 February 20214.7M+1.8%711K6.56
    12 February 20214.6M+3.7%507K9.04
    29 January 20214.4M-12.1%880K5.03
    15 January 20215.0M+7.3%631K7.98
    31 December 20204.7M-2.4%796K5.89
    15 December 20204.8M+2.5%530K9.06
    30 November 20204.7M-7.2%412K11.39
    13 November 20205.1M-2.6%484K10.43
    30 October 20205.2M-0.9%330K15.74
    15 October 20205.2M-11.8%916K5.72
    30 September 20205.9M+5.9%537K11.06
    15 September 20205.6M+0.1%414K13.55
    31 August 20205.6M+8.2%288K19.49
    14 August 20205.2M+4.6%697K7.43
    31 July 20205.0M-5.1%365K13.58
    15 July 20205.2M+0.8%373K14.00
    30 June 20205.2M-9.6%635K8.15
    15 June 20205.7M+2.4%771K7.43
    29 May 20205.6M+12.5%553K10.11
    15 May 20205.0M+3.1%591K8.41
    30 April 20204.8M-2.7%557K8.66
    15 April 20205.0M-4.2%557K8.90
    31 March 20205.2M-0.7%821K6.30
    13 March 20205.2M-0.8%969K5.38
    28 February 20205.3M+6.2%903K5.82
    14 February 20204.9M-10.0%616K8.03
    31 January 20205.5M+14.1%705K7.80
    15 January 20204.8M+26.4%701K6.88
    31 December 20193.8M-1.9%605K6.30
    13 December 20193.9M+5.6%715K5.43
    29 November 20193.7M+1.4%662K5.56
    15 November 20193.6M+11.3%1.1M3.33
    31 October 20193.3M-2.5%552K5.91
    15 October 20193.3M+6.6%741K4.51
    30 September 20193.1M+49.6%908K3.46
    13 September 20192.1M-21.6%845K2.48
    30 August 20192.7M-26.9%719K3.72
    15 August 20193.7M-7.8%1.2M3.04
    31 July 20194.0M-0.4%1.4M2.92
    15 July 20194.0M+28.8%727K5.48
    28 June 20193.1M+14.0%739K4.19
    14 June 20192.7M-2.6%648K4.19
    31 May 20192.8M-10.1%664K4.19
    15 May 20193.1M+37.4%1.1M2.78
    30 April 20192.3M-7.8%713K3.16
    15 April 20192.4M-9.9%1.0M2.40
    29 March 20192.7M-13.3%802K3.38
    15 March 20193.1M+16.1%1.2M2.66
    28 February 20192.7M+9.6%803K3.36
    15 February 20192.5M-0.9%555K4.43
    31 January 20192.5M+13.0%690K3.60
    15 January 20192.2M-18.1%904K2.43
    31 December 20182.7M+31.3%828K3.24
    14 December 20182.0M-4.6%643K3.18
    30 November 20182.1M-4.6%557K3.84
    15 November 20182.2M-3.8%877K2.56
    31 October 20182.3M-1.2%681K3.43
    15 October 20182.4M-18.2%606K3.89
    28 September 20182.9M+53.9%820K3.52
    14 September 20181.9M+25.9%882K2.13
    31 August 20181.5M-40.0%659K2.26
    15 August 20182.5M-1.4%503K4.93
    31 July 20182.5M-11.0%271K9.27
    13 July 20182.8M-12.4%363K7.78
    29 June 20183.2M+124.3%2.0M1.63
    15 June 20181.4M+8.6%635K2.26
    31 May 20181.3M+0.1%417K3.17
    15 May 20181.3M+19.9%399K3.32
    30 April 20181.1M-4.1%287K3.84
    13 April 20181.2M-1.2%472K2.44
    29 March 20181.2M-78.4%890K1.31
    15 March 20185.4M+5.6%123K43.91
    28 February 20185.1M+4.7%108K47.37
    15 February 20184.9M+7.8%153K31.86
    31 January 20184.5M+5.4%219K20.63
    12 January 20184.3M+9.7%222K19.26
    29 December 20173.9M194K20.17
    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.