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Stock research / United States / TMUS / Short interest

T-Mobile US, Inc. short interest

15.0M shares of T-Mobile US were sold short at the 15 October 2026 settlement, near the middle of its range over the last year (10.9M to 23.5M). Short sellers would need 2.4 days of normal trading to buy them back.

Shares sold short15.0Mat 15 Oct 2026
Change on the settlement before+4.7%+38% over a year
Days to cover2.36at 6.3M shares a day
Of shares in issue1.41%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 (10.9M to 23.5M), 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 202615.0M+4.7%6.3M2.36
    30 September 202614.3M-20.8%6.1M2.33
    15 September 202618.1M+5.7%4.0M4.57
    31 August 202617.1M+0.9%3.9M4.37
    14 August 202616.9M-6.3%4.0M4.24
    31 July 202618.1M-19.8%5.5M3.29
    15 July 202622.5M+12.6%4.7M4.84
    30 June 202620.0M-14.9%7.2M2.78
    15 June 202623.5M+17.8%5.3M4.43
    29 May 202619.9M+6.6%4.3M4.66
    15 May 202618.7M+1.8%4.6M4.06
    30 April 202618.4M-0.6%7.6M2.41
    15 April 202618.5M-13.4%5.4M3.42
    31 March 202621.4M+78.2%6.1M3.52
    13 March 202612.0M-10.0%4.7M2.57
    27 February 202613.3M-4.6%5.5M2.40
    13 February 202614.0M+5.6%8.1M1.72
    30 January 202613.2M-12.3%7.1M1.85
    15 January 202615.1M-3.0%4.7M3.21
    31 December 202515.5M-0.7%5.3M2.90
    15 December 202515.6M+3.3%4.7M3.34
    28 November 202515.1M+33.9%5.3M2.83
    14 November 202511.3M-11.1%5.0M2.24
    31 October 202512.7M+17.0%5.6M2.25
    15 October 202510.9M-18.3%4.3M2.52
    30 September 202513.3M+6.1%4.1M3.22
    15 September 202512.5M-3.7%4.0M3.16
    29 August 202513.0M+11.1%3.9M3.36
    15 August 202511.7M-3.0%3.9M3.02
    31 July 202512.1M-12.2%4.7M2.58
    15 July 202513.7M-15.4%3.5M3.95
    30 June 202516.3M+12.2%6.4M2.55
    13 June 202514.5M-1.8%3.9M3.73
    30 May 202514.7M+6.6%4.2M3.50
    15 May 202513.8M+15.3%3.7M3.69
    30 April 202512.0M-6.7%5.2M2.31
    15 April 202512.8M-2.7%5.3M2.45
    31 March 202513.2M-12.1%4.1M3.23
    14 March 202515.0M+8.3%4.2M3.58
    28 February 202513.9M-8.3%3.8M3.68
    14 February 202515.1M+11.6%3.6M4.24
    31 January 202513.6M-11.1%4.1M3.30
    15 January 202515.3M+5.4%3.7M4.10
    31 December 202414.5M-0.2%4.0M3.66
    13 December 202414.5M-4.1%3.5M4.15
    29 November 202415.1M+6.3%3.0M4.98
    15 November 202414.2M+2.6%3.4M4.20
    31 October 202413.8M-3.1%4.4M3.18
    15 October 202414.3M+2.7%2.7M5.25
    30 September 202413.9M-6.3%4.8M2.92
    13 September 202414.9M-14.7%3.5M4.19
    30 August 202417.4M+4.6%3.2M5.51
    15 August 202416.7M+4.5%4.6M3.59
    31 July 202415.9M-16.8%4.3M3.69
    15 July 202419.1M-1.9%3.2M6.07
    28 June 202419.5M-23.5%6.3M3.07
    14 June 202425.5M+0.8%7.1M3.61
    31 May 202425.3M+8.0%4.5M5.58
    15 May 202423.4M-3.5%4.5M5.15
    30 April 202424.3M+4.8%4.5M5.40
    15 April 202423.2M-4.0%3.8M6.17
    28 March 202424.1M-2.3%3.9M6.19
    15 March 202424.7M-8.1%5.2M4.71
    29 February 202426.9M-0.8%4.0M6.70
    15 February 202427.1M-2.5%4.0M6.74
    31 January 202427.8M+10.2%5.8M4.76
    12 January 202425.2M+3.1%4.2M6.04
    29 December 202324.5M-11.1%3.3M7.39
    15 December 202327.5M+9.6%5.3M5.22
    30 November 202325.1M-8.0%3.5M7.26
    15 November 202327.3M+5.9%3.9M6.94
    31 October 202325.8M-1.2%5.3M4.87
    13 October 202326.1M+2.7%3.8M6.87
    29 September 202325.4M-8.5%3.7M6.78
    15 September 202327.8M+6.2%7.2M3.85
    31 August 202326.2M+12.8%4.2M6.28
    15 August 202323.2M+3.1%3.4M6.91
    31 July 202322.5M-6.1%6.0M3.78
    14 July 202323.9M-1.5%3.6M6.61
    30 June 202324.3M-15.0%5.6M4.32
    15 June 202328.6M-1.8%10.6M2.71
    31 May 202329.1M+1.0%7.4M3.94
    15 May 202328.8M+2.6%4.9M5.85
    28 April 202328.1M-10.3%5.2M5.36
    14 April 202331.3M-2.6%5.2M6.01
    31 March 202332.2M+42.3%5.5M5.89
    15 March 202322.6M+12.4%5.4M4.16
    28 February 202320.1M+10.6%4.9M4.08
    15 February 202318.2M+14.7%5.2M3.51
    31 January 202315.9M-8.3%4.8M3.30
    13 January 202317.3M-1.6%6.1M2.84
    30 December 202217.6M-2.1%4.6M3.82
    15 December 202218.0M+19.2%5.4M3.32
    30 November 202215.1M-11.2%4.5M3.34
    15 November 202217.0M+3.0%5.8M2.92
    31 October 202216.5M+3.3%6.3M2.63
    14 October 202215.9M-2.3%5.2M3.09
    30 September 202216.3M+11.7%5.4M3.03
    15 September 202214.6M-2.8%4.8M3.08
    31 August 202215.0M+3.5%3.4M4.41
    15 August 202214.5M+5.5%3.2M4.51
    29 July 202213.8M-8.0%5.6M2.46
    15 July 202215.0M-5.6%3.5M4.27
    30 June 202215.9M-3.6%5.1M3.09
    15 June 202216.5M+2.1%4.0M4.11
    31 May 202216.1M-4.7%3.9M4.10
    13 May 202216.9M+2.7%5.4M3.14
    29 April 202216.5M-20.1%5.0M3.28
    14 April 202220.6M+16.0%5.5M3.78
    31 March 202217.8M+19.3%5.5M3.25
    15 March 202214.9M+9.9%4.7M3.20
    28 February 202213.5M-7.6%4.2M3.22
    15 February 202214.7M-3.5%6.8M2.16
    31 January 202215.2M+11.5%5.9M2.59
    14 January 202213.6M+2.1%6.9M1.97
    31 December 202113.3M-0.7%4.4M3.05
    15 December 202113.4M-11.6%5.1M2.65
    30 November 202115.2M+27.6%5.3M2.90
    15 November 202111.9M+1.8%4.9M2.42
    29 October 202111.7M-24.0%4.8M2.46
    15 October 202115.4M-4.1%5.9M2.59
    30 September 202116.1M-26.6%6.1M2.63
    15 September 202121.9M+125.3%5.6M3.88
    31 August 20219.7M-18.9%4.0M2.43
    13 August 202112.0M+15.2%3.7M3.24
    30 July 202110.4M-9.5%4.7M2.22
    15 July 202111.5M-5.0%2.5M4.55
    30 June 202112.1M-10.5%3.3M3.64
    15 June 202113.5M-5.2%3.8M3.59
    28 May 202114.2M+19.3%5.3M2.67
    14 May 202111.9M-2.9%4.8M2.50
    30 April 202112.3M-21.9%2.8M4.46
    15 April 202115.8M+10.3%3.1M5.06
    31 March 202114.3M-4.6%4.1M3.50
    15 March 202115.0M+13.4%5.6M2.69
    26 February 202113.2M-5.7%5.4M2.46
    12 February 202114.0M+8.0%4.4M3.19
    29 January 202113.0M+8.5%3.5M3.74
    15 January 202112.0M+1.5%3.6M3.33
    31 December 202011.8M+10.6%2.9M4.14
    15 December 202010.7M+13.2%3.0M3.55
    30 November 20209.4M-12.4%3.2M2.98
    13 November 202010.7M-11.4%4.6M2.33
    30 October 202012.1M-23.8%2.8M4.41
    15 October 202015.9M+5.3%3.8M4.21
    30 September 202015.1M+9.3%4.6M3.25
    15 September 202013.8M+4.7%3.6M3.83
    31 August 202013.2M-7.8%2.4M5.45
    14 August 202014.3M-24.6%4.4M3.22
    31 July 202019.0M+3.3%4.3M4.46
    15 July 202018.4M-21.1%5.3M3.46
    30 June 202023.3M+55.7%18.9M1.23
    15 June 202015.0M-10.3%4.3M3.49
    29 May 202016.7M+2.0%6.6M2.54
    15 May 202016.4M+5.1%4.0M4.07
    30 April 202015.6M+2.9%3.5M4.44
    15 April 202015.1M-12.6%7.0M2.16
    31 March 202017.3M+0.9%6.3M2.73
    13 March 202017.1M+7.9%5.9M2.89
    28 February 202015.9M+31.4%6.6M2.43
    14 February 202012.1M+63.6%6.4M1.90
    31 January 20207.4M-23.5%2.2M3.31
    15 January 20209.7M-19.0%2.4M4.08
    31 December 201911.9M+35.1%2.5M4.77
    13 December 20198.8M-14.0%2.6M3.37
    29 November 201910.3M+7.2%2.5M4.05
    15 November 20199.6M-19.1%3.2M3.03
    31 October 201911.8M-0.8%2.8M4.19
    15 October 201911.9M-14.8%2.3M5.26
    30 September 201914.0M+25.6%3.0M4.66
    13 September 201911.1M-19.2%2.2M5.17
    30 August 201913.8M+12.6%2.0M6.93
    15 August 201912.2M-9.6%3.4M3.61
    31 July 201913.5M+19.0%6.0M2.26
    15 July 201911.4M+11.2%10.7M1.06
    28 June 201910.2M-5.8%3.5M2.90
    14 June 201910.9M-14.5%3.2M3.37
    31 May 201912.7M+58.3%5.8M2.19
    15 May 20198.0M+19.1%2.9M2.76
    30 April 20196.7M-15.0%3.2M2.10
    15 April 20197.9M-3.2%3.1M2.54
    29 March 20198.2M-2.5%3.7M2.24
    15 March 20198.4M-13.0%2.5M3.31
    28 February 20199.7M-9.3%3.3M2.93
    15 February 201910.6M-7.8%4.1M2.61
    31 January 201911.6M+8.1%3.4M3.39
    15 January 201910.7M+17.3%4.4M2.43
    31 December 20189.1M+3.8%4.4M2.06
    14 December 20188.8M-3.9%3.6M2.46
    30 November 20189.1M+4.5%3.4M2.68
    15 November 20188.7M+7.0%3.2M2.74
    31 October 20188.2M-21.4%4.8M1.69
    15 October 201810.4M-13.9%3.8M2.76
    28 September 201812.1M+0.9%3.1M3.90
    14 September 201811.9M+2.7%2.9M4.16
    31 August 201811.6M-8.2%2.1M5.46
    15 August 201812.7M+2.7%4.5M2.82
    31 July 201812.3M-0.4%2.3M5.45
    13 July 201812.4M-5.4%2.8M4.47
    29 June 201813.1M-2.6%3.6M3.68
    15 June 201813.4M+11.5%3.2M4.19
    31 May 201812.1M-4.2%3.2M3.79
    15 May 201812.6M+25.8%6.8M1.84
    30 April 201810.0M+13.9%5.8M1.72
    13 April 20188.8M-15.7%5.4M1.62
    29 March 201810.4M+23.7%3.5M2.96
    15 March 20188.4M+4.9%4.0M2.10
    28 February 20188.0M+4.5%3.9M2.05
    15 February 20187.7M-6.6%5.4M1.42
    31 January 20188.2M-3.8%3.0M2.73
    12 January 20188.5M+5.1%3.3M2.62
    29 December 20178.1M3.0M2.72
    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.