Skip to content
HowShorted

FSM short interest NYSE

Fortuna Mining Corp.. 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
18,840,741
vs previous settlement
โˆ’2,289,265 (-10.8%)
days to cover
4.80
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for FSM 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 FSM days to cover

Fails to deliver

The SEC's fails-to-deliver figure for FSM: 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
3,172
11 Sep 2026
Highest in window
1,072,553
2 Jun 2026
Days with a balance
125
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Fortuna Mining Corp. 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 1.1M shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202618,840,741โˆ’2,289,2654.80
31 Aug 202621,130,006+4,135,5493.40
14 Aug 202616,994,457+877,4472.99
31 Jul 202616,117,010โˆ’867,9282.88
15 Jul 202616,984,938โˆ’387,3823.74
30 Jun 202617,372,320+664,6973.65
15 Jun 202616,707,623โˆ’332,1232.97
29 May 202617,039,746โˆ’880,9213.76
15 May 202617,920,667โˆ’178,1362.77
30 Apr 202618,098,803+938,1643.74
15 Apr 202617,160,639+834,1402.49
31 Mar 202616,326,499โˆ’2,152,0481.83
13 Mar 202618,478,547+785,0092.94
27 Feb 202617,693,538โˆ’1,570,0801.98
13 Feb 202619,263,618+267,2292.36
30 Jan 202618,996,389+1,097,5451.94
15 Jan 202617,898,844+329,2512.35
31 Dec 202517,569,593+1,031,2772.53
15 Dec 202516,538,316+2,214,9092.32
28 Nov 202514,323,407สณโˆ’7,706,5421.90
14 Nov 202522,029,949โˆ’1,030,2021.81
31 Oct 202523,060,151+86,7991.75
15 Oct 202522,973,352โˆ’2,362,0301.08
30 Sep 202525,335,382+4,631,3111.00
15 Sep 202520,704,071+2,005,2971.03
29 Aug 202518,698,774โˆ’76,7481.46
15 Aug 202518,775,522+1,975,2811.45
31 Jul 202516,800,241โˆ’2,224,7761.55
15 Jul 202519,025,017โˆ’2,159,1301.46
30 Jun 202521,184,147โˆ’692,8521.53
13 Jun 202521,876,999+5,028,2401.00
30 May 202516,848,759โˆ’694,9451.05
15 May 202517,543,704โˆ’627,9551.09
30 Apr 202518,171,659โˆ’926,6991.32
15 Apr 202519,098,358โˆ’4,163,1881.17
31 Mar 202523,261,546+5,045,2121.55
14 Mar 202518,216,334+102,9551.01
28 Feb 202518,113,379+2,604,2841.01
14 Feb 202515,509,095+2,712,7981.10
31 Jan 202512,796,297โˆ’461,8391.00
15 Jan 202513,258,136+282,3561.29
31 Dec 202412,975,780โˆ’847,7881.50
13 Dec 202413,823,568โˆ’451,7781.35
29 Nov 202414,275,346โˆ’384,0282.06
15 Nov 202414,659,374+1,410,6141.95
31 Oct 202413,248,760+1,448,1751.75
15 Oct 202411,800,585+213,7261.64
30 Sep 202411,586,859+1,160,4441.36
13 Sep 202410,426,415โˆ’864,2691.72
30 Aug 202411,290,684+224,3972.25
15 Aug 202411,066,287+594,7242.18
31 Jul 202410,471,563โˆ’1,126,7722.52
15 Jul 202411,598,335+2,620,9472.01
28 Jun 20248,977,388โˆ’3,562,4741.83
14 Jun 202412,539,862+7,569,6001.09
31 May 20244,970,262+968,0891.00
15 May 20244,002,173โˆ’280,6721.00
30 Apr 20244,282,845โˆ’64,4611.00
15 Apr 20244,347,306โˆ’1,009,1671.00
28 Mar 20245,356,473+166,2661.23
15 Mar 20245,190,207+1,415,7001.00
29 Feb 20243,774,507+19,3941.00
15 Feb 20243,755,113+1,020,4531.00
31 Jan 20242,734,660+67,8571.00
12 Jan 20242,666,803+226,5201.00
29 Dec 20232,440,283โˆ’470,3651.00
15 Dec 20232,910,648โˆ’2,167,0321.00
30 Nov 20235,077,680+947,6841.00
15 Nov 20234,129,996โˆ’3,000,2151.00
31 Oct 20237,130,211โˆ’1,775,7151.87
13 Oct 20238,905,926+373,0032.93
29 Sep 20238,532,923+909,4773.79
15 Sep 20237,623,446+153,8533.68
31 Aug 20237,469,593+921,7332.94
15 Aug 20236,547,860+537,2832.21
31 Jul 20236,010,577+822,4782.24
14 Jul 20235,188,099โˆ’610,2201.67
30 Jun 20235,798,319+1,449,5602.50
15 Jun 20234,348,759+996,0831.58
31 May 20233,352,676โˆ’359,4791.25
15 May 20233,712,155+146,2111.09
28 Apr 20233,565,944โˆ’570,7001.30
14 Apr 20234,136,644โˆ’2,241,3411.01
31 Mar 20236,377,985+2,455,9431.38
15 Mar 20233,922,042+495,0231.15
28 Feb 20233,427,019โˆ’328,7961.37
15 Feb 20233,755,815โˆ’897,8511.08
31 Jan 20234,653,666โˆ’330,4551.00
13 Jan 20234,984,121โˆ’384,4091.07
30 Dec 20225,368,530โˆ’667,8091.35
15 Dec 20226,036,339โˆ’2,893,9691.00
30 Nov 20228,930,308โˆ’2,861,9712.20
15 Nov 202211,792,279โˆ’99,3562.05
31 Oct 202211,891,635โˆ’1,110,8563.31
14 Oct 202213,002,491+203,6391.87
30 Sep 202212,798,852โˆ’2,133,0822.56
15 Sep 202214,931,934+875,6393.92
31 Aug 202214,056,295โˆ’1,373,8263.12
15 Aug 202215,430,121+769,4233.27
29 Jul 202214,660,698+2,648,6222.73
15 Jul 202212,012,076+1,328,9782.20
30 Jun 202210,683,098+667,2562.16
15 Jun 202210,015,842โˆ’428,5621.76
31 May 202210,444,404โˆ’257,3162.11
13 May 202210,701,720+762,1501.51
29 Apr 20229,939,570+965,6921.74
14 Apr 20228,973,878โˆ’742,3291.65
31 Mar 20229,716,207โˆ’956,2311.45
15 Mar 202210,672,438+518,3341.37
28 Feb 202210,154,104+354,6071.81
15 Feb 20229,799,497โˆ’922,4602.38
31 Jan 202210,721,957+116,0322.22
14 Jan 202210,605,925โˆ’593,8883.55
31 Dec 202111,199,813+77,8712.09
15 Dec 202111,121,942โˆ’310,5412.21
30 Nov 202111,432,483+232,0252.18
15 Nov 202111,200,458+1,173,4431.39
29 Oct 202110,027,015โˆ’233,6242.66
15 Oct 202110,260,639โˆ’337,5953.00
30 Sep 202110,598,234โˆ’1,071,9312.16
15 Sep 202111,670,165+307,9822.71
31 Aug 202111,362,183โˆ’61,3813.17
13 Aug 202111,423,564+1,223,9493.46
30 Jul 202110,199,615+2,725,7252.00
15 Jul 20217,473,890โˆ’15,228,6891.68
30 Jun 202122,702,579+3,072,0276.28
15 Jun 202119,630,552สณ+4,779,0457.19
28 May 202114,851,507โˆ’3,180,9854.77
14 May 202118,032,492+2,466,8774.33
30 Apr 202115,565,615+7,034,9422.91
15 Apr 20218,530,673โˆ’1,577,2624.58
31 Mar 202110,107,935โˆ’270,5953.85
15 Mar 202110,378,530+884,1063.23
26 Feb 20219,494,424+303,2972.87
12 Feb 20219,191,127+36,6142.10
29 Jan 20219,154,513+589,8962.13
15 Jan 20218,564,617โˆ’1,147,1062.04
31 Dec 20209,711,723โˆ’1,400,7783.20
15 Dec 202011,112,501+30,3504.61
30 Nov 202011,082,151+1,889,5433.72
13 Nov 20209,192,608โˆ’269,4562.66
30 Oct 20209,462,064+221,5433.38
15 Oct 20209,240,521+344,7763.67
30 Sep 20208,895,745+1,072,9412.18
15 Sep 20207,822,804โˆ’1,282,7251.72
31 Aug 20209,105,529โˆ’866,3772.74
14 Aug 20209,971,906+830,6852.31
31 Jul 20209,141,221+920,9511.63
15 Jul 20208,220,270โˆ’1,914,3252.58
30 Jun 202010,134,595+2,036,5952.03
15 Jun 20208,098,000+1,634,5302.20
29 May 20206,463,470โˆ’10,193,2501.80
15 May 202016,656,720สณ+1,917,0236.51
30 Apr 202014,739,697+2,807,9044.39
15 Apr 202011,931,793+2,722,5233.53
31 Mar 20209,209,270+1,308,2112.08
13 Mar 20207,901,059โˆ’465,0262.78
28 Feb 20208,366,085+1,107,5412.72
14 Feb 20207,258,544โˆ’26,9115.65
31 Jan 20207,285,455สณโˆ’276,3854.01
15 Jan 20207,561,840โˆ’476,1823.06
31 Dec 20198,038,022+2,053,8883.77
13 Dec 20195,984,134โˆ’1,561,7582.93
29 Nov 20197,545,892+1,229,4754.73
15 Nov 20196,316,417+1,169,6122.96
31 Oct 20195,146,805โˆ’475,1372.82
15 Oct 20195,621,942+357,6292.98
30 Sep 20195,264,313+1,533,5671.78
13 Sep 20193,730,746+1,033,0891.08
30 Aug 20192,697,657โˆ’465,0321.02
15 Aug 20193,162,689+875,1081.00
31 Jul 20192,287,581+1,238,2421.00
15 Jul 20191,049,339+251,1581.00
28 Jun 2019798,181โˆ’866,0401.00
14 Jun 20191,664,221+304,8641.00
31 May 20191,359,357+918,3631.00
15 May 2019440,994โˆ’150,8971.00
30 Apr 2019591,891+96,3021.00
15 Apr 2019495,589โˆ’180,2631.00
29 Mar 2019675,852โˆ’369,6821.00
15 Mar 20191,045,534+182,9621.00
28 Feb 2019862,572+223,7441.00
15 Feb 2019638,828โˆ’15,7701.00
31 Jan 2019654,598โˆ’281,0591.00
15 Jan 2019935,657โˆ’49,4391.21
31 Dec 2018985,096+143,0281.00
14 Dec 2018842,068+110,3411.12
30 Nov 2018731,727+42,8391.03
15 Nov 2018688,888โˆ’101,4381.00
31 Oct 2018790,326+139,9131.00
15 Oct 2018650,413โˆ’172,7471.00
28 Sep 2018823,160โˆ’30,8551.00
14 Sep 2018854,015โˆ’238,3251.09
31 Aug 20181,092,340+439,5171.78
15 Aug 2018652,823โˆ’146,1051.00
31 Jul 2018798,928โˆ’61,3781.41
13 Jul 2018860,306โˆ’115,8141.24
29 Jun 2018976,120โˆ’181,6941.59
15 Jun 20181,157,814+373,2661.19
31 May 2018784,548โˆ’138,1931.20
15 May 2018922,741โˆ’79,3601.11
30 Apr 20181,002,101โˆ’374,3651.15
13 Apr 20181,376,466+35,8551.35
29 Mar 20181,340,611โˆ’242,9661.17
15 Mar 20181,583,577+195,9282.65
28 Feb 20181,387,649+245,6771.49
15 Feb 20181,141,972โˆ’233,1011.03
31 Jan 20181,375,073โˆ’162,9861.14
12 Jan 20181,538,059โˆ’309,7411.70
29 Dec 20171,847,800โ€“1.71

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

Questions

Frequently asked questions

What is FSM's short interest?
18,840,741 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 2,289,265 from the previous settlement.
Why is there no percentage for FSM?
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 FSM's days to cover?
4.80 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.

Ranked companies with a percentage: most shorted US stocks. Other symbols with counts only: shares short without a percentage. Browse by name: US companies A to Z.