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HowShorted

SBLK short interest Nasdaq Global Market

Star Bulk Carriers Corp. Commo. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: an SEC filer exists but no defensible share count is available yet.

Shares short
2,708,879
vs previous settlement
+1,030,015 (+61.4%)
days to cover
1.58
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for SBLK shares short

Days to cover

FINRA's own figure: reported shares short divided by the security's average daily trading volume, published alongside each settlement.

Aggregate net short position time series for SBLK days to cover

Fails to deliver

The SEC's fails-to-deliver figure for SBLK: the aggregate net balance of shares that failed to be delivered at each settlement date, published by the SEC twice a month and shown here verbatim for the trailing window. A balance is not a daily flow, and a fail has many ordinary causes; the SEC says it cannot guarantee the accuracy of the data. See what fails to deliver are and the largest balances today.

Last balance on file
19,992
25 Aug 2026
Highest in window
223,855
17 Sep 2025
Days with a balance
55
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Star Bulk Carriers Corp. Commo fails to deliver

Source: U.S. Securities and Exchange Commission, fails-to-deliver data (public domain). Only settlement days with a positive balance appear; the largest balance in the window was 224K shares.

History

Every FINRA settlement we hold for SBLK, newest first. สณ marks a figure FINRA itself flagged as revised.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20262,708,879+1,030,0151.58
31 Aug 20261,678,864โˆ’468,5001.03
14 Aug 20262,147,364+89,5811.59
31 Jul 20262,057,783+976,3771.64
15 Jul 20261,081,406โˆ’558,1531.00
30 Jun 20261,639,559โˆ’300,1691.13
15 Jun 20261,939,728+141,8571.71
29 May 20261,797,871+155,0421.04
15 May 20261,642,829+106,6301.41
30 Apr 20261,536,199โˆ’8,1991.82
15 Apr 20261,544,398+52,0311.78
31 Mar 20261,492,367โˆ’464,9401.00
13 Mar 20261,957,307+764,7421.00
27 Feb 20261,192,565โˆ’289,9911.00
13 Feb 20261,482,556โˆ’329,6631.46
30 Jan 20261,812,219โˆ’258,1371.26
15 Jan 20262,070,356+336,4041.55
31 Dec 20251,733,952+404,4391.36
15 Dec 20251,329,513+546,6901.00
28 Nov 2025782,823โˆ’602,3671.00
14 Nov 20251,385,190โˆ’168,7241.85
31 Oct 20251,553,914+147,8962.59
15 Oct 20251,406,018+39,4581.35
30 Sep 20251,366,560โˆ’396,6281.30
15 Sep 20251,763,188โˆ’404,8021.43
29 Aug 20252,167,990โˆ’386,6382.03
15 Aug 20252,554,628โˆ’635,3622.71
31 Jul 20253,189,990โˆ’24,5882.74
15 Jul 20253,214,578โˆ’828,1121.98
30 Jun 20254,042,690+1,305,1901.96
13 Jun 20252,737,500โˆ’1,345,8341.82
30 May 20254,083,334โˆ’8,1193.31
15 May 20254,091,453โˆ’223,9263.91
30 Apr 20254,315,379+78,3415.11
15 Apr 20254,237,038โˆ’848,0241.85
31 Mar 20255,085,062โˆ’50,5833.15
14 Mar 20255,135,645+2,006,0741.75
28 Feb 20253,129,571+169,4141.00
14 Feb 20252,960,157โˆ’102,5691.94
31 Jan 20253,062,726+216,0351.80
15 Jan 20252,846,691+881,0941.54
31 Dec 20241,965,597+89,2711.04
13 Dec 20241,876,326+94,4341.00
29 Nov 20241,781,892+388,8061.00
15 Nov 20241,393,086โˆ’59,0811.09
31 Oct 20241,452,167โˆ’8,0301.00
15 Oct 20241,460,197โˆ’246,8381.00
30 Sep 20241,707,035โˆ’473,6151.01
13 Sep 20242,180,650โˆ’374,1851.00
30 Aug 20242,554,835+49,8211.44
15 Aug 20242,505,014+157,1111.49
31 Jul 20242,347,903โˆ’683,9452.14
15 Jul 20243,031,848+640,2702.44
28 Jun 20242,391,578โˆ’621,0441.30
14 Jun 20243,012,622+964,5191.62
31 May 20242,048,103+93,1901.33
15 May 20241,954,913+694,9871.18
30 Apr 20241,259,926โˆ’673,0841.02
15 Apr 20241,933,010โˆ’3,187,4711.00
28 Mar 20245,120,481+906,5093.20
15 Mar 20244,213,972+365,9442.58
29 Feb 20243,848,028+484,5262.65
15 Feb 20243,363,502+484,7282.15
31 Jan 20242,878,774+637,8562.99
12 Jan 20242,240,918+353,9871.67
29 Dec 20231,886,931โˆ’88,0762.01
15 Dec 20231,975,007+332,2511.34
30 Nov 20231,642,756โˆ’469,6971.63
15 Nov 20232,112,453สณ+99,7612.76
31 Oct 20232,012,692โˆ’381,5992.43
13 Oct 20232,394,291โˆ’45,5792.58
29 Sep 20232,439,870+613,9262.89
15 Sep 20231,825,944โˆ’979,6362.38
31 Aug 20232,805,580โˆ’1,114,7323.45
15 Aug 20233,920,312โˆ’371,5374.25
31 Jul 20234,291,849+143,7434.09
14 Jul 20234,148,106โˆ’129,6523.38
30 Jun 20234,277,758+135,0335.96
15 Jun 20234,142,725โˆ’226,4614.09
31 May 20234,369,186+354,8273.21
15 May 20234,014,359โˆ’1,135,9473.06
28 Apr 20235,150,306โˆ’15,7706.59
14 Apr 20235,166,076+147,7335.72
31 Mar 20235,018,343โˆ’847,2774.95
15 Mar 20235,865,620โˆ’498,5263.55
28 Feb 20236,364,146โˆ’210,8822.83
15 Feb 20236,575,028+964,2505.48
31 Jan 20235,610,778โˆ’523,7143.34
13 Jan 20236,134,492+456,5924.24
30 Dec 20225,677,900โˆ’55,8823.77
15 Dec 20225,733,782โˆ’2,970,1263.71
30 Nov 20228,703,908+413,1743.95
15 Nov 20228,290,734+229,6524.25
31 Oct 20228,061,082+1,071,7994.92
14 Oct 20226,989,283+42,2394.51
30 Sep 20226,947,044โˆ’36,9483.11
15 Sep 20226,983,992โˆ’573,6752.79
31 Aug 20227,557,667+818,6192.08
15 Aug 20226,739,048+1,648,2162.72
29 Jul 20225,090,832+1,218,0053.15
15 Jul 20223,872,827โˆ’1,157,7881.79
30 Jun 20225,030,615+1,343,4971.60
15 Jun 20223,687,118+1,458,7181.08
31 May 20222,228,400+81,9361.00
13 May 20222,146,464โˆ’232,7061.21
29 Apr 20222,379,170+173,1261.00
14 Apr 20222,206,044โˆ’28,4661.00
31 Mar 20222,234,510+100,6851.05
15 Mar 20222,133,825โˆ’783,7251.00
28 Feb 20222,917,550+512,2741.00
15 Feb 20222,405,276โˆ’25,5421.00
31 Jan 20222,430,818โˆ’120,2991.23
14 Jan 20222,551,117+617,2791.03
31 Dec 20211,933,838โˆ’442,3581.60
15 Dec 20212,376,196โˆ’216,1831.08
30 Nov 20212,592,379+1,007,9761.00
15 Nov 20211,584,403โˆ’275,4311.00
29 Oct 20211,859,834+258,1621.01
15 Oct 20211,601,672+73,1991.00
30 Sep 20211,528,473โˆ’82,3911.00
15 Sep 20211,610,864+190,5821.00
31 Aug 20211,420,282+305,2811.00
13 Aug 20211,115,001โˆ’508,7781.00
30 Jul 20211,623,779+533,4431.06
15 Jul 20211,090,336+307,8611.00
30 Jun 2021782,475+146,3541.00
15 Jun 2021636,121โˆ’439,8301.00
28 May 20211,075,951+298,0111.00
14 May 2021777,940+76,3721.00
30 Apr 2021701,568+121,6071.00
15 Apr 2021579,961โˆ’55,6491.00
31 Mar 2021635,610+112,1001.00
15 Mar 2021523,510โˆ’31,7181.00
26 Feb 2021555,228+116,4761.00
12 Feb 2021438,752+44,3551.00
29 Jan 2021394,397โˆ’10,5061.00
15 Jan 2021404,903โˆ’6,0371.00
31 Dec 2020410,940+44,2261.00
15 Dec 2020366,714+47,0211.00
30 Nov 2020319,693โˆ’241,6091.00
13 Nov 2020561,302โˆ’462,4051.52
30 Oct 20201,023,707โˆ’563,2212.92
15 Oct 20201,586,928โˆ’328,2493.74
30 Sep 20201,915,177โˆ’205,1226.46
15 Sep 20202,120,299+29,8016.28
31 Aug 20202,090,498โˆ’311,4656.28
14 Aug 20202,401,963+18,3575.81
31 Jul 20202,383,606โˆ’111,7876.02
15 Jul 20202,495,393โˆ’146,4025.08
30 Jun 20202,641,795+40,6813.82
15 Jun 20202,601,114+273,0993.27
29 May 20202,328,015+1,6064.00
15 May 20202,326,409สณ+317,9893.93
30 Apr 20202,008,420โˆ’594,4234.09
15 Apr 20202,602,843โˆ’105,8775.91
31 Mar 20202,708,720โˆ’71,8704.07
13 Mar 20202,780,590โˆ’344,8154.72
28 Feb 20203,125,405+569,9184.45
14 Feb 20202,555,487+119,7134.40
31 Jan 20202,435,774+748,6163.50
15 Jan 20201,687,158+70,8972.25
31 Dec 20191,616,261+98,9673.00
13 Dec 20191,517,294โˆ’609,8992.81
29 Nov 20192,127,193โˆ’231,6973.32
15 Nov 20192,358,890โˆ’17,5114.53
31 Oct 20192,376,401+15,2763.18
15 Oct 20192,361,125+89,5294.00
30 Sep 20192,271,596+316,3005.50
13 Sep 20191,955,296โˆ’325,0092.61
30 Aug 20192,280,305โˆ’831,5833.68
15 Aug 20193,111,888โˆ’84,3674.38
31 Jul 20193,196,255โˆ’172,7575.00
15 Jul 20193,369,012+46,0506.12
28 Jun 20193,322,962โˆ’90,8937.92
14 Jun 20193,413,855+126,9149.28
31 May 20193,286,941+81,2325.05
15 May 20193,205,709+9,8278.18
30 Apr 20193,195,882+338,9615.83
15 Apr 20192,856,921+493,0694.24
29 Mar 20192,363,852+388,8704.11
15 Mar 20191,974,982+496,6733.53
28 Feb 20191,478,309+85,5953.06
15 Feb 20191,392,714โˆ’134,2592.46
31 Jan 20191,526,973+42,4881.80
15 Jan 20191,484,485โˆ’157,4173.30
31 Dec 20181,641,902+264,2243.17
14 Dec 20181,377,678โˆ’193,4162.24
30 Nov 20181,571,094+1,023,2471.55
15 Nov 2018547,847โˆ’778,6221.00
31 Oct 20181,326,469+975,4332.21
15 Oct 2018351,036+52,4831.00
28 Sep 2018298,553โˆ’13,3681.00
14 Sep 2018311,921+116,7481.00
31 Aug 2018195,173โˆ’101,9781.00
15 Aug 2018297,151โˆ’180,5541.00
31 Jul 2018477,705+45,5251.22
13 Jul 2018432,180โˆ’139,0541.12
29 Jun 2018571,234โˆ’158,8481.00
15 Jun 2018730,082โˆ’27,8981.63
31 May 2018757,980+250,1802.48
15 May 2018507,800โˆ’25,7321.96
30 Apr 2018533,532โˆ’70,7421.72
13 Apr 2018604,274โˆ’15,6902.16
29 Mar 2018619,964โˆ’74,2712.17
15 Mar 2018694,235โˆ’257,6361.74
28 Feb 2018951,871โˆ’100,8992.56
15 Feb 20181,052,770+162,9871.85
31 Jan 2018889,783โˆ’174,4112.05
12 Jan 20181,064,194+4,3262.54
29 Dec 20171,059,868โ€“3.76

Scroll inside the table for earlier settlements, back to 29 Dec 2017.

Questions

Frequently asked questions

What is SBLK's short interest?
2,708,879 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 1,030,015 from the previous settlement.
Why is there no percentage for SBLK?
Because no defensible share count exists to divide by: an SEC filer exists but no defensible share count is available yet. The symbol maps to an SEC filer, but its share count cannot be used yet. A newly listed company needs two cover-page counts on file before the first is trusted; a split or an unexplained jump pauses publication until a fresh SEC count corroborates it; a secondary share class publishes under the company's primary line; and a foreign filer's short count is in depositary-share units. This page upgrades to a percentage automatically once a defensible count exists.
What is SBLK's days to cover?
1.58 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume, published in the same file and shown verbatim. We hold no volume data ourselves.
Is this the short float?
No. This page shows FINRA's share count only. Short float divides that count by the public float, and short interest as we publish it elsewhere divides it by shares outstanding from SEC filings. Neither denominator is available for this line, so neither ratio is shown.
How often does this update?
FINRA member firms report short positions as of the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. We ingest each file the day it appears and re-read recent settlements for revisions.

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