greeksoup/ stock research
Stock research / United States / DXCM / Short interest

Dexcom Inc. short interest

15.7M shares of Dexcom were sold short at the 15 October 2026 settlement, near the middle of its range over the last year (11.2M to 18.7M). Short sellers would need 4.8 days of normal trading to buy them back.

Shares sold short15.7Mat 15 Oct 2026
Change on the settlement before+11.9%+35% over a year
Days to cover4.75at 3.3M shares a day
Of shares in issue4.21%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 (11.2M to 18.7M), and the share price moved +21% 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 202615.7M+11.9%3.3M4.75
    30 September 202614.0M-18.8%4.4M3.16
    15 September 202617.3M-2.1%3.5M4.98
    31 August 202617.6M+6.6%4.1M4.31
    14 August 202616.5M-5.8%5.6M2.94
    31 July 202617.5M-5.9%5.1M3.45
    15 July 202618.7M+3.0%4.3M4.37
    30 June 202618.1M+6.4%5.0M3.60
    15 June 202617.0M-2.2%5.4M3.17
    29 May 202617.4M-1.0%8.4M2.06
    15 May 202617.6M-4.1%6.3M2.78
    30 April 202618.3M+20.6%4.6M3.96
    15 April 202615.2M+3.2%3.7M4.06
    31 March 202614.7M-9.7%4.2M3.50
    13 March 202616.3M+6.4%3.9M4.16
    27 February 202615.3M+4.9%3.9M3.92
    13 February 202614.6M-5.8%6.0M2.44
    30 January 202615.5M+0.3%6.0M2.58
    15 January 202615.5M+7.2%6.0M2.58
    31 December 202514.4M+9.9%3.7M3.94
    15 December 202513.1M+0.5%5.5M2.40
    28 November 202513.0M-2.7%5.3M2.45
    14 November 202513.4M+20.0%9.5M1.42
    31 October 202511.2M-3.8%6.3M1.78
    15 October 202511.6M-11.2%4.6M2.50
    30 September 202513.1M-0.5%8.0M1.63
    15 September 202513.1M+18.4%4.3M3.05
    29 August 202511.1M+12.2%4.0M2.74
    15 August 20259.9M+16.6%4.1M2.41
    31 July 20258.5M-4.6%3.3M2.58
    15 July 20258.9M-15.4%2.9M3.07
    30 June 202510.5M+12.2%4.6M2.31
    13 June 20259.4M-10.0%2.5M3.80
    30 May 202510.4M-7.7%2.8M3.72
    15 May 202511.3M-1.1%5.2M2.17
    30 April 202511.4M+7.5%3.5M3.25
    15 April 202510.6M-3.6%5.4M1.97
    31 March 202511.0M-4.0%4.0M2.74
    14 March 202511.5M+16.3%4.9M2.34
    28 February 20259.9M+4.0%3.7M2.65
    14 February 20259.5M-3.7%3.5M2.68
    31 January 20259.8M+11.8%3.5M2.78
    15 January 20258.8M+0.1%3.5M2.49
    31 December 20248.8M-5.7%3.4M2.62
    13 December 20249.3M+10.8%3.0M3.11
    29 November 20248.4M-7.6%3.5M2.38
    15 November 20249.1M-2.6%4.3M2.14
    31 October 20249.4M+21.8%5.3M1.77
    15 October 20247.7M-19.6%4.1M1.89
    30 September 20249.6M+11.7%4.2M2.26
    13 September 20248.6M+16.6%3.8M2.27
    30 August 20247.3M-3.0%4.0M1.85
    15 August 20247.6M+7.2%6.8M1.12
    31 July 20247.1M-32.3%10.5M1.00
    15 July 202410.4M+1.0%1.8M5.73
    28 June 202410.3M+14.5%3.7M2.78
    14 June 20249.0M+3.1%2.8M3.25
    31 May 20248.7M+12.3%2.6M3.30
    15 May 20247.8M-29.9%2.0M3.98
    30 April 202411.1M-5.7%3.4M3.26
    15 April 202411.8M-19.2%2.3M5.17
    28 March 202414.6M-8.2%2.4M6.06
    15 March 202415.9M-4.7%4.1M3.86
    29 February 202416.6M-2.5%3.4M4.96
    15 February 202417.1M-8.0%3.3M5.21
    31 January 202418.6M+1.8%2.6M7.17
    12 January 202418.2M-0.9%2.5M7.23
    29 December 202318.4M-2.9%2.3M8.10
    15 December 202319.0M-0.8%3.0M6.25
    30 November 202319.1M+7.7%3.9M4.85
    15 November 202317.7M-15.7%4.6M3.86
    31 October 202321.1M+30.7%6.3M3.33
    13 October 202316.1M+2.0%5.9M2.73
    29 September 202315.8M-1.4%4.7M3.35
    15 September 202316.0M-5.2%4.7M3.40
    31 August 202316.9M+0.9%4.3M3.97
    15 August 202316.8M+11.9%3.5M4.76
    31 July 202315.0M+21.1%3.5M4.31
    14 July 202312.4M-0.3%2.0M6.14
    30 June 202312.4M-2.3%2.8M4.47
    15 June 202312.7M-10.9%2.8M4.59
    31 May 202314.3M-1.4%2.8M5.13
    15 May 202314.5M+13.6%2.3M6.29
    28 April 202312.7M+5.3%2.5M5.13
    14 April 202312.1M-2.7%1.5M7.83
    31 March 202312.4M-1.3%1.8M6.97
    15 March 202312.6M-2.7%2.8M4.57
    28 February 202312.9M-2.0%2.4M5.34
    15 February 202313.2M+18.8%2.9M4.54
    31 January 202311.1M-5.6%2.2M5.02
    13 January 202311.8M+1.0%2.9M4.11
    30 December 202211.6M-7.0%2.1M5.60
    15 December 202212.5M-3.4%2.8M4.46
    30 November 202213.0M+3.0%2.5M5.26
    15 November 202212.6M+5.8%2.7M4.58
    31 October 202211.9M-13.1%3.5M3.41
    14 October 202213.7M+4.5%3.5M3.96
    30 September 202213.1M-14.1%2.3M5.68
    15 September 202215.3M+6.2%2.3M6.51
    31 August 202214.4M+7.2%2.3M6.12
    15 August 202213.4M+10.2%3.0M4.45
    29 July 202212.2M+3.5%3.1M3.89
    15 July 202211.7M-2.9%2.0M5.75
    30 June 202212.1M-7.0%3.2M3.73
    15 June 202213.0M+294.4%3.5M3.70
    31 May 20223.3M-10.6%1.4M2.35
    13 May 20223.7M+10.5%980K3.76
    29 April 20223.3M-3.3%686K4.87
    14 April 20223.5M-2.8%625K5.52
    31 March 20223.6M+4.3%765K4.64
    15 March 20223.4M+0.6%877K3.88
    28 February 20223.4M-1.6%856K3.95
    15 February 20223.4M+7.4%796K4.33
    31 January 20223.2M-3.3%993K3.23
    14 January 20223.3M+8.8%994K3.34
    31 December 20213.0M-2.1%580K5.26
    15 December 20213.1M-12.5%1.1M2.94
    30 November 20213.6M-2.5%811K4.39
    15 November 20213.7M+0.2%528K6.91
    29 October 20213.6M+4.8%519K7.02
    15 October 20213.5M+1.4%456K7.63
    30 September 20213.4M-5.3%579K5.92
    15 September 20213.6M-5.9%498K7.27
    31 August 20213.8M-3.3%461K8.35
    13 August 20214.0M-6.0%692K5.75
    30 July 20214.2M-1.9%731K5.79
    15 July 20214.3M+5.6%543K7.94
    30 June 20214.1M+6.9%1.0M3.93
    15 June 20213.8M+3.6%665K5.75
    28 May 20213.7M-1.6%707K5.22
    14 May 20213.7M+5.2%901K4.16
    30 April 20213.6M-2.0%538K6.62
    15 April 20213.6M+1.9%469K7.76
    31 March 20213.6M-3.1%797K4.47
    15 March 20213.7M-5.3%801K4.60
    26 February 20213.9M+2.8%632K6.15
    12 February 20213.8M+0.6%667K5.67
    29 January 20213.8M-0.2%724K5.19
    15 January 20213.8M+9.1%1.1M3.58
    31 December 20203.5M-1.2%663K5.21
    15 December 20203.5M+20.2%1.2M2.98
    30 November 20202.9M+7.2%863K3.37
    13 November 20202.7M-1.1%1.1M2.44
    30 October 20202.7M-30.9%1.5M1.87
    15 October 20204.0M-4.2%714K5.57
    30 September 20204.1M+8.4%728K5.69
    15 September 20203.8M-0.9%839K4.55
    31 August 20203.9M+1.6%483K7.98
    14 August 20203.8M+3.1%710K5.35
    31 July 20203.7M-4.9%764K4.82
    15 July 20203.9M-1.5%1.0M3.71
    30 June 20203.9M-10.6%1.1M3.51
    15 June 20204.4M-7.8%1.2M3.58
    29 May 20204.8M-16.7%1.3M3.77
    15 May 20205.7M+17.5%3.9M1.49
    30 April 20204.9M+7.1%1.5M3.29
    15 April 20204.6M+4.6%1.2M3.81
    31 March 20204.4M-2.0%1.4M3.06
    13 March 20204.4M-2.4%1.2M3.78
    28 February 20204.6M-0.9%1.5M3.06
    14 February 20204.6M-1.0%586K7.85
    31 January 20204.6M-2.3%569K8.16
    15 January 20204.8M-5.2%806K5.90
    31 December 20195.0M+0.1%686K7.31
    13 December 20195.0M+0.7%873K5.74
    29 November 20195.0M-0.8%994K5.01
    15 November 20195.0M-8.3%1.8M2.80
    31 October 20195.5M+0.3%542K10.09
    15 October 20195.5M-5.7%723K7.54
    30 September 20195.8M+2.6%659K8.78
    13 September 20195.6M-6.8%1.0M5.56
    30 August 20196.1M+0.1%947K6.39
    15 August 20196.0M+14.1%1.1M5.48
    31 July 20195.3M-10.1%688K7.70
    15 July 20195.9M+1.4%844K6.98
    28 June 20195.8M+4.3%1.1M5.48
    14 June 20195.6M+3.9%1.8M3.12
    31 May 20195.4M+7.3%860K6.24
    15 May 20195.0M-3.9%1.3M3.90
    30 April 20195.2M+8.5%1.2M4.51
    15 April 20194.8M-12.9%1.2M4.04
    29 March 20195.5M-0.4%1.9M2.91
    15 March 20195.5M-6.2%1.4M3.87
    28 February 20195.9M+3.9%1.6M3.64
    15 February 20195.7M-1.6%1.0M5.57
    31 January 20195.8M-2.4%1.1M5.01
    15 January 20195.9M+18.9%1.5M3.92
    31 December 20185.0M-5.9%1.0M4.96
    14 December 20185.3M+12.8%1.6M3.21
    30 November 20184.7M+0.1%2.6M1.78
    15 November 20184.7M+0.9%1.7M2.81
    31 October 20184.6M-7.8%1.1M4.31
    15 October 20185.0M-8.3%1.5M3.46
    28 September 20185.5M-11.6%1.1M4.84
    14 September 20186.2M-7.9%832K7.45
    31 August 20186.7M-9.7%1.0M6.71
    15 August 20187.4M-0.9%1.6M4.77
    31 July 20187.5M-7.7%825K9.11
    13 July 20188.1M+6.3%814K10.01
    29 June 20187.7M-12.5%943K8.13
    15 June 20188.8M-6.1%1.1M7.86
    31 May 20189.3M-4.4%595K15.68
    15 May 20189.8M-21.3%1.6M6.08
    30 April 201812.4M-1.6%843K14.70
    13 April 201812.6M-10.9%1.3M9.50
    29 March 201814.1M+17.6%1.4M9.85
    15 March 201812.0M-5.7%1.2M10.34
    28 February 201812.8M+1.4%1.0M12.36
    15 February 201812.6M+2.1%836K15.05
    31 January 201812.3M+0.5%1.1M11.35
    12 January 201812.3M-2.2%2.3M5.24
    29 December 201712.5M879K14.25
    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.