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Stock research / United States / MRNA / Short interest

Moderna, Inc. short interest

32.6M shares of Moderna were sold short at the 15 October 2026 settlement, near the bottom of its range over the last year (30.9M to 71.5M). Short sellers would need 1.8 days of normal trading to buy them back.

Shares sold short32.6Mat 15 Oct 2026
Change on the settlement before+5.6%-50% over a year
Days to cover1.78at 18.3M shares a day
Of shares in issue8.07%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 bottom of its range over the last year (30.9M to 71.5M), and the share price moved +817% 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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    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 202632.6M+5.6%18.3M1.78
    30 September 202630.9M-6.1%16.9M1.83
    15 September 202632.9M-16.0%13.0M2.53
    31 August 202639.2M-25.9%50.2M1.00
    14 August 202652.8M+6.1%5.8M9.15
    31 July 202649.8M-5.0%4.9M10.22
    15 July 202652.4M-1.5%8.6M6.07
    30 June 202653.2M-9.3%11.5M4.61
    15 June 202658.7M+1.5%5.6M10.48
    29 May 202657.8M-0.5%4.7M12.27
    15 May 202658.1M-0.4%10.3M5.63
    30 April 202658.3M-1.9%5.7M10.15
    15 April 202659.4M-2.0%5.2M11.45
    31 March 202660.6M-8.4%6.7M9.05
    13 March 202666.2M-5.8%10.7M6.16
    27 February 202670.2M-1.6%8.7M8.08
    13 February 202671.3M-0.2%10.9M6.55
    30 January 202671.5M+1.8%15.7M4.54
    15 January 202670.3M+2.8%13.3M5.29
    31 December 202568.3M-1.9%9.9M6.89
    15 December 202569.7M+2.4%10.1M6.90
    28 November 202568.1M+5.8%9.4M7.27
    14 November 202564.4M+1.1%11.4M5.66
    31 October 202563.7M-2.1%12.2M5.23
    15 October 202565.0M+1.1%9.4M6.92
    30 September 202564.3M+1.6%11.5M5.57
    15 September 202563.3M+5.8%13.1M4.85
    29 August 202559.8M-4.7%9.6M6.23
    15 August 202562.8M-0.3%9.0M6.98
    31 July 202563.0M-4.9%7.6M8.24
    15 July 202566.2M+1.0%10.7M6.18
    30 June 202565.6M+3.2%9.1M7.19
    13 June 202563.6M-3.5%9.3M6.80
    30 May 202565.9M-2.1%16.7M3.94
    15 May 202567.3M+11.7%11.7M5.77
    30 April 202560.2M+6.9%6.3M9.55
    15 April 202556.3M+13.1%11.2M5.03
    31 March 202549.8M+6.2%8.3M6.03
    14 March 202546.9M+4.0%11.3M4.16
    28 February 202545.1M+6.5%11.8M3.81
    14 February 202542.3M+4.2%13.2M3.20
    31 January 202540.6M-5.6%12.1M3.35
    15 January 202543.0M+13.6%12.9M3.34
    31 December 202437.8M-4.2%8.6M4.38
    13 December 202439.5M-3.3%6.9M5.75
    29 November 202440.8M+2.4%9.3M4.39
    15 November 202439.9M+15.9%11.6M3.44
    31 October 202434.4M+3.4%4.5M7.68
    15 October 202433.3M+6.2%4.5M7.45
    30 September 202431.3M+13.4%5.7M5.48
    13 September 202427.6M+7.7%7.0M3.96
    30 August 202425.6M+2.5%3.5M7.37
    15 August 202425.0M+10.7%5.8M4.30
    31 July 202422.6M-0.7%2.4M9.36
    15 July 202422.7M+2.8%3.1M7.46
    28 June 202422.1M+2.4%4.3M5.13
    14 June 202421.6M+7.0%3.4M6.33
    31 May 202420.2M-5.8%5.7M3.55
    15 May 202421.4M+1.7%4.3M5.01
    30 April 202421.1M+0.4%2.5M8.28
    15 April 202421.0M-2.1%3.4M6.12
    28 March 202421.4M-3.5%3.4M6.30
    15 March 202422.2M+0.5%4.5M4.92
    29 February 202422.1M-8.2%4.6M4.76
    15 February 202424.1M+15.3%3.9M6.11
    31 January 202420.9M-9.5%3.3M6.33
    12 January 202423.1M-4.7%6.8M3.41
    29 December 202324.2M+10.6%5.1M4.70
    15 December 202321.9M-0.5%6.5M3.37
    30 November 202322.0M-1.8%2.8M7.98
    15 November 202322.4M+14.1%5.7M3.96
    31 October 202319.6M+8.6%5.2M3.78
    13 October 202318.1M-2.3%2.7M6.71
    29 September 202318.5M+1.7%3.4M5.39
    15 September 202318.2M+0.6%4.0M4.53
    31 August 202318.1M+4.9%4.5M4.04
    15 August 202317.2M+9.2%4.6M3.77
    31 July 202315.8M+1.7%3.3M4.85
    14 July 202315.5M-11.7%3.2M4.80
    30 June 202317.6M-4.2%3.0M5.76
    15 June 202318.3M-2.1%2.7M6.71
    31 May 202318.7M+2.7%3.7M5.02
    15 May 202318.2M+2.1%3.1M5.82
    28 April 202317.9M+6.9%4.1M4.32
    14 April 202316.7M-2.6%3.2M5.21
    31 March 202317.2M+8.0%2.9M5.92
    15 March 202315.9M+1.3%3.5M4.50
    28 February 202315.7M+6.9%4.7M3.31
    15 February 202314.7M+3.8%3.1M4.75
    31 January 202314.1M+0.7%4.1M3.45
    13 January 202314.0M+0.0%3.4M4.16
    30 December 202214.0M-15.8%6.7M2.11
    15 December 202216.7M+0.0%7.9M2.11
    30 November 202216.7M+4.3%3.1M5.38
    15 November 202216.0M-3.0%5.3M3.00
    31 October 202216.5M+1.9%5.0M3.29
    14 October 202216.2M+2.2%4.9M3.31
    30 September 202215.8M-3.2%5.4M2.95
    15 September 202216.3M+7.4%5.1M3.23
    31 August 202215.2M+1.5%4.4M3.49
    15 August 202215.0M+1.7%5.2M2.90
    29 July 202214.7M-9.6%3.2M4.65
    15 July 202216.3M+14.3%5.8M2.83
    30 June 202214.3M-3.5%5.4M2.62
    15 June 202214.8M-4.8%5.4M2.73
    31 May 202215.5M-9.1%6.0M2.60
    13 May 202217.1M+10.6%7.9M2.17
    29 April 202215.4M-3.6%5.2M2.97
    14 April 202216.0M-1.3%5.7M2.80
    31 March 202216.2M-6.1%8.1M2.01
    15 March 202217.3M-2.0%8.1M2.13
    28 February 202217.6M+7.0%7.8M2.26
    15 February 202216.5M+2.7%7.1M2.33
    31 January 202216.0M+1.4%10.6M1.51
    14 January 202215.8M-5.3%9.2M1.71
    31 December 202116.7M+8.7%10.0M1.68
    15 December 202115.4M+0.5%12.3M1.25
    30 November 202115.3M+4.9%15.6M1.00
    15 November 202114.6M+12.0%15.1M1.00
    29 October 202113.0M-12.1%6.6M1.98
    15 October 202114.8M+3.3%15.8M1.00
    30 September 202114.3M+0.2%13.1M1.09
    15 September 202114.3M+3.8%13.9M1.03
    31 August 202113.8M-10.6%15.7M1.00
    13 August 202115.4M-18.1%29.4M1.00
    30 July 202118.8M+37.8%31.4M1.00
    15 July 202113.6M+9.5%6.9M1.96
    30 June 202112.5M-13.0%9.0M1.38
    15 June 202114.3M+21.1%10.1M1.42
    28 May 202111.8M-0.9%5.3M2.24
    14 May 202111.9M-7.7%12.0M1.00
    30 April 202112.9M+9.2%10.4M1.25
    15 April 202111.8M-8.6%7.4M1.60
    31 March 202113.0M-13.5%7.9M1.65
    15 March 202115.0M+12.6%8.5M1.75
    26 February 202113.3M-9.5%8.5M1.56
    12 February 202114.7M-26.5%10.1M1.45
    29 January 202120.0M-19.4%15.1M1.32
    15 January 202124.8M+6.0%15.2M1.63
    31 December 202023.4M-8.6%26.1M1.00
    15 December 202025.6M-7.4%37.2M1.00
    30 November 202027.6M+12.0%24.8M1.11
    13 November 202024.7M-2.2%9.6M2.58
    30 October 202025.2M-7.7%5.3M4.79
    15 October 202027.3M-9.6%6.3M4.33
    30 September 202030.2M+7.2%8.0M3.80
    15 September 202028.2M+0.7%9.3M3.04
    31 August 202028.0M-11.5%9.7M2.88
    14 August 202031.7M+16.4%15.6M2.03
    31 July 202027.2M+10.0%36.2M1.00
    15 July 202024.7M-13.7%19.4M1.27
    30 June 202028.6M-0.4%13.3M2.16
    15 June 202028.8M+25.8%15.3M1.88
    29 May 202022.9M+14.4%44.0M1.00
    15 May 202020.0M-10.0%18.2M1.10
    30 April 202022.2M-7.0%18.5M1.20
    15 April 202023.9M+0.9%8.3M2.87
    31 March 202023.7M+10.9%19.0M1.25
    13 March 202021.3M+5.8%15.1M1.41
    28 February 202020.2M+17.6%28.7M1.00
    14 February 202017.1M-8.6%6.1M2.79
    31 January 202018.7M-7.0%4.7M4.00
    15 January 202020.2M+6.2%1.7M11.80
    31 December 201919.0M+29.9%2.1M9.09
    13 December 201914.6M-22.5%1.7M8.63
    29 November 201918.9M-0.5%1.5M12.82
    15 November 201919.0M-7.8%1.6M11.83
    31 October 201920.6M-12.5%983K20.93
    15 October 201923.5M-2.1%1.4M17.03
    30 September 201924.0M+60.0%6.1M3.97
    13 September 201915.0M+17.7%3.1M4.84
    30 August 201912.8M+5.7%1.9M6.70
    15 August 201912.1M+5.3%1.3M8.97
    31 July 201911.5M+11.2%1.1M10.58
    15 July 201910.3M+8.5%1.1M9.69
    28 June 20199.5M+0.7%1.7M5.72
    14 June 20199.4M-12.1%2.9M3.27
    31 May 201910.7M-4.2%611K17.59
    15 May 201911.2M-6.0%779K14.40
    30 April 201911.9M-4.2%731K16.32
    15 April 201912.4M-9.6%1.1M11.02
    29 March 201913.8M+7.9%743K18.53
    15 March 201912.8M+4.0%1.2M11.08
    28 February 201912.3M+7.2%1.3M9.58
    15 February 201911.4M+22.4%878K13.03
    31 January 20199.3M+13.1%743K12.59
    15 January 20198.3M+27.6%1.2M6.68
    31 December 20186.5M+71.3%1.5M4.39
    14 December 20183.8M+5610.1%2.8M1.33
    28 September 201866K-3.3%18K3.62
    14 September 201868K+2.7%19K3.59
    31 August 201867K-4.0%14K4.86
    15 August 201869K-43.7%8K9.24
    31 July 2018123K+37.6%10K12.21
    13 July 201890K+78.8%23K3.89
    29 June 201850K+11.2%21K2.36
    15 June 201845K-19.5%8K5.79
    31 May 201856K+4.2%11K5.22
    15 May 201854K+6.4%3K18.25
    30 April 201850K+123.0%12K4.04
    13 April 201823K+1.8%2K12.79
    29 March 201822K-11.6%6K3.95
    15 March 201825K+0.0%2K11.52
    28 February 201825K+0.0%3K9.47
    15 February 201825K-25.0%5K5.08
    31 January 201834K+67.8%9K3.69
    12 January 201820K-8.5%11K1.86
    29 December 201722K9K2.56
    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.