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Lumentum Holdings Inc. short interest

7.7M shares of Lumentum Holdings were sold short at the 15 October 2026 settlement, near the bottom of its range over the last year (6.5M to 12.7M). Short sellers would need 1.5 days of normal trading to buy them back.

Shares sold short7.7Mat 15 Oct 2026
Change on the settlement before+3.9%-24% over a year
Days to cover1.52at 5.1M shares a day
Of shares in issue8.54%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 (6.5M to 12.7M), and the share price moved +244% 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

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    Every settlement since 29 Dec 2017 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 20267.7M+3.9%5.1M1.52
    30 September 20267.4M+14.3%5.0M1.50
    15 September 20266.5M-8.5%4.0M1.63
    31 August 20267.1M-2.0%4.1M1.72
    14 August 20267.3M-15.0%5.6M1.30
    31 July 20268.6M-2.7%4.6M1.88
    15 July 20268.8M-9.0%4.0M2.20
    30 June 20269.7M+3.9%5.9M1.65
    15 June 20269.3M-9.1%6.2M1.50
    29 May 202610.2M+11.7%5.3M1.93
    15 May 20269.2M-2.9%6.8M1.34
    30 April 20269.4M+5.8%5.0M1.89
    15 April 20268.9M-22.3%6.4M1.39
    31 March 202611.5M-0.1%8.1M1.42
    13 March 202611.5M+5.4%6.4M1.80
    27 February 202610.9M+1.0%4.4M2.45
    13 February 202610.8M+1.7%6.4M1.68
    30 January 202610.6M-5.5%4.3M2.46
    15 January 202611.2M-4.6%4.6M2.43
    31 December 202511.8M-6.5%2.8M4.17
    15 December 202512.6M-1.2%4.5M2.81
    28 November 202512.7M+10.4%5.7M2.25
    14 November 202511.5M+11.7%6.0M1.93
    31 October 202510.3M+0.9%3.4M3.05
    15 October 202510.2M-0.0%2.6M3.86
    30 September 202510.2M-0.4%3.6M2.87
    15 September 202510.3M-8.7%4.4M2.33
    29 August 202511.3M+2.1%3.2M3.51
    15 August 202511.0M+6.1%3.6M3.08
    31 July 202510.4M-6.2%2.2M4.81
    15 July 202511.1M-5.8%2.1M5.29
    30 June 202511.8M+5.2%2.1M5.62
    13 June 202511.2M-2.8%2.2M5.05
    30 May 202511.5M-6.5%1.6M6.99
    15 May 202512.3M+19.9%3.4M3.65
    30 April 202510.3M-0.9%1.7M6.18
    15 April 202510.4M-0.3%4.1M2.51
    31 March 202510.4M-0.2%2.3M4.43
    14 March 202510.4M+0.7%3.1M3.31
    28 February 202510.3M+1.1%2.3M4.52
    14 February 202510.2M+6.0%3.1M3.29
    31 January 20259.6M-8.9%2.6M3.78
    15 January 202510.6M-7.1%1.4M7.34
    31 December 202411.4M-3.3%1.3M8.69
    13 December 202411.8M+5.7%1.6M7.32
    29 November 202411.1M+5.2%1.9M5.96
    15 November 202410.6M+8.2%2.7M3.97
    31 October 20249.8M+1.0%1.3M7.55
    15 October 20249.7M+0.2%1.4M6.82
    30 September 20249.7M+0.2%1.8M5.45
    13 September 20249.7M+1.1%1.1M8.53
    30 August 20249.6M+3.3%1.7M5.51
    15 August 20249.3M-2.5%2.4M3.78
    31 July 20249.5M-8.8%1.4M6.60
    15 July 202410.4M+3.3%1.1M9.78
    28 June 202410.1M+3.9%881K11.44
    14 June 20249.7M-0.8%705K13.75
    31 May 20249.8M+3.2%911K10.74
    15 May 20249.5M-2.5%1.7M5.49
    30 April 20249.7M+1.8%1.0M9.71
    15 April 20249.5M-8.7%762K12.52
    28 March 202410.5M+3.9%1.3M8.08
    15 March 202410.1M-4.3%1.5M6.51
    29 February 202410.5M+3.9%1.2M8.49
    15 February 202410.1M+2.0%3.1M3.29
    31 January 20249.9M+8.9%1.1M8.72
    12 January 20249.1M+1.3%826K11.01
    29 December 20239.0M-0.8%865K10.39
    15 December 20239.1M+7.6%1.3M7.10
    30 November 20238.4M-2.3%847K9.93
    15 November 20238.6M-3.8%1.7M5.16
    31 October 20239.0M+2.1%1.5M6.03
    13 October 20238.8M-0.6%1.1M8.10
    29 September 20238.8M-4.6%1.2M7.10
    15 September 20239.2M-4.2%1.3M7.11
    31 August 20239.6M+7.4%2.2M4.37
    15 August 20239.0M-4.4%1.3M6.81
    31 July 20239.4M-8.7%1.3M7.15
    14 July 202310.3M-1.9%1.6M6.47
    30 June 202310.5M+38.0%2.7M3.94
    15 June 20237.6M+13.0%2.4M3.21
    31 May 20236.7M-0.6%1.5M4.41
    15 May 20236.8M+15.9%1.4M4.91
    28 April 20235.8M+0.6%925K6.32
    14 April 20235.8M-5.0%1.2M4.68
    31 March 20236.1M-4.8%746K8.19
    15 March 20236.4M-6.4%1.2M5.51
    28 February 20236.9M+4.0%1.5M4.54
    15 February 20236.6M-0.8%956K6.89
    31 January 20236.6M+4.9%648K10.25
    13 January 20236.3M+0.6%674K9.39
    30 December 20226.3M-0.2%948K6.64
    15 December 20226.3M+1.9%1.0M6.25
    30 November 20226.2M-0.2%1.0M5.92
    15 November 20226.2M-15.6%1.9M3.20
    31 October 20227.3M-3.2%674K10.91
    14 October 20227.6M-3.2%758K10.02
    30 September 20227.8M+3.0%850K9.22
    15 September 20227.6M-2.8%742K10.26
    31 August 20227.8M+3.8%1.0M7.81
    15 August 20227.5M-1.4%666K11.33
    29 July 20227.7M-5.1%501K15.27
    15 July 20228.1M+2.1%582K13.84
    30 June 20227.9M-1.2%1.0M7.72
    15 June 20228.0M-5.0%758K10.53
    31 May 20228.4M-5.8%804K10.46
    13 May 20228.9M+14.7%1.7M5.25
    29 April 20227.8M+4.6%697K11.16
    14 April 20227.4M-2.1%690K10.78
    31 March 20227.6M-0.5%693K10.97
    15 March 20227.6M+27.7%1.6M4.87
    28 February 20226.0M-3.9%895K6.68
    15 February 20226.2M+1.2%1.4M4.35
    31 January 20226.1M-9.6%912K6.74
    14 January 20226.8M-0.9%731K9.30
    31 December 20216.9M-1.4%643K10.68
    15 December 20217.0M-1.4%1.2M5.96
    30 November 20217.1M+3.9%695K10.15
    15 November 20216.8M+12.4%837K8.11
    29 October 20216.0M+0.0%590K10.24
    15 October 20216.0M+1.9%453K13.33
    30 September 20215.9M-3.1%578K10.27
    15 September 20216.1M-0.3%499K12.26
    31 August 20216.1M+1.9%803K7.65
    13 August 20216.0M-10.6%651K9.26
    30 July 20216.7M-1.9%435K15.52
    15 July 20216.9M-7.9%542K12.70
    30 June 20217.5M+1.3%874K8.54
    15 June 20217.4M-5.8%857K8.60
    28 May 20217.8M+3.9%1.6M4.92
    14 May 20217.5M+7.5%2.3M3.33
    30 April 20217.0M+1.1%641K10.93
    15 April 20216.9M-2.5%916K7.56
    31 March 20217.1M-5.8%1.9M3.68
    15 March 20217.5M-1.8%1.1M6.57
    26 February 20217.7M-13.8%1.0M7.51
    12 February 20218.9M+5.4%2.5M3.58
    29 January 20218.5M+29.5%3.2M2.66
    15 January 20216.5M+2.5%1.2M5.41
    31 December 20206.4M-3.3%1.1M6.04
    15 December 20206.6M-1.2%778K8.47
    30 November 20206.7M-2.4%704K9.46
    13 November 20206.8M+2.7%1.2M5.76
    30 October 20206.6M-4.9%771K8.61
    15 October 20207.0M-0.8%865K8.08
    30 September 20207.0M-3.3%1.3M5.60
    15 September 20207.3M+2.0%1.7M4.21
    31 August 20207.1M+0.3%1.0M6.94
    14 August 20207.1M+1.9%1.5M4.80
    31 July 20207.0M+2.1%826K8.47
    15 July 20206.9M-2.7%1.2M5.54
    30 June 20207.0M-5.2%2.5M2.77
    15 June 20207.4M-11.4%1.2M6.28
    29 May 20208.4M+6.6%1.3M6.56
    15 May 20207.9M+5.0%1.5M5.27
    30 April 20207.5M-6.7%1.0M7.46
    15 April 20208.0M-2.4%1.0M7.69
    31 March 20208.2M-7.6%1.5M5.40
    13 March 20208.9M+10.3%1.7M5.29
    28 February 20208.1M-2.6%1.6M4.90
    14 February 20208.3M-5.2%2.0M4.16
    31 January 20208.7M-4.7%1.1M7.62
    15 January 20209.2M-2.5%1.2M7.51
    31 December 20199.4M+22.7%1.0M9.00
    13 December 20197.7M+28.9%2.0M3.80
    29 November 20195.9M-0.6%1.0M5.82
    15 November 20196.0M-10.7%1.4M4.16
    31 October 20196.7M+10.6%1.3M5.20
    15 October 20196.1M-5.2%1.1M5.71
    30 September 20196.4M-8.9%1.3M4.99
    13 September 20197.0M-8.8%1.1M6.47
    30 August 20197.7M+8.9%1.1M7.16
    15 August 20197.1M-9.8%1.8M3.94
    31 July 20197.8M-8.9%1.4M5.49
    15 July 20198.6M+6.3%1.5M5.76
    28 June 20198.1M-0.2%1.7M4.81
    14 June 20198.1M+31.1%1.3M6.06
    31 May 20196.2M-15.7%2.4M2.53
    15 May 20197.3M+13.9%1.7M4.35
    30 April 20196.4M-12.1%1.2M5.58
    15 April 20197.3M-1.5%1.3M5.69
    29 March 20197.4M+7.4%2.0M3.68
    15 March 20196.9M+13.8%1.7M4.08
    28 February 20196.1M+10.3%1.4M4.39
    15 February 20195.5M+35.0%2.3M2.36
    31 January 20194.1M-2.1%1.3M3.22
    15 January 20194.2M-13.5%1.3M3.11
    31 December 20184.8M-19.7%1.5M3.31
    14 December 20186.0M-14.7%2.3M2.64
    30 November 20187.0M-10.0%1.6M4.39
    15 November 20187.8M-3.7%4.4M1.79
    31 October 20188.1M-4.4%1.8M4.44
    15 October 20188.5M-5.2%1.5M5.57
    28 September 20189.0M-1.9%1.0M8.69
    14 September 20189.1M-5.5%1.6M5.54
    31 August 20189.7M-7.9%1.4M6.73
    15 August 201810.5M+4.0%2.3M4.50
    31 July 201810.1M+9.8%1.9M5.29
    13 July 20189.2M+0.9%1.4M6.48
    29 June 20189.1M-2.3%1.3M7.00
    15 June 20189.3M+2.7%1.4M6.83
    31 May 20189.1M-5.0%1.1M8.60
    15 May 20189.6M-12.7%1.9M5.12
    30 April 201811.0M+1.5%2.8M3.96
    13 April 201810.8M-3.1%2.8M3.85
    29 March 201811.1M-1.6%1.8M6.16
    15 March 201811.3M-4.2%2.3M4.99
    28 February 201811.8M-10.1%1.4M8.24
    15 February 201813.1M-1.2%3.7M3.55
    31 January 201813.3M-0.3%2.9M4.51
    12 January 201813.3M-3.1%1.5M8.63
    29 December 201713.8M1.7M8.27
    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.