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HowShorted

JAZZ short interest Nasdaq Global Market

Jazz Pharmaceuticals plc 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
4,676,811
vs previous settlement
+52,121 (+1.1%)
days to cover
7.22
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for JAZZ: 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
7,400
19 Aug 2026
Highest in window
24,719
7 Aug 2026
Days with a balance
52
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Jazz Pharmaceuticals plc 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 25K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20264,676,811+52,1217.22
31 Aug 20264,624,690+1,010,0513.68
14 Aug 20263,614,639+259,4573.81
31 Jul 20263,355,182โˆ’446,6815.33
15 Jul 20263,801,863+301,7254.83
30 Jun 20263,500,138โˆ’441,2583.75
15 Jun 20263,941,396โˆ’349,4714.24
29 May 20264,290,867โˆ’558,4655.09
15 May 20264,849,332โˆ’241,2794.69
30 Apr 20265,090,611โˆ’149,8485.33
15 Apr 20265,240,459โˆ’1,285,9485.97
31 Mar 20266,526,407+362,3877.99
13 Mar 20266,164,020+166,7087.64
27 Feb 20265,997,312โˆ’47,4984.52
13 Feb 20266,044,810+380,8699.14
30 Jan 20265,663,941+311,4446.33
15 Jan 20265,352,497โˆ’10,8853.58
31 Dec 20255,363,382+320,9206.80
15 Dec 20255,042,462+67,5544.72
28 Nov 20254,974,908+135,2542.24
14 Nov 20254,839,654โˆ’276,8605.30
31 Oct 20255,116,514+426,7028.36
15 Oct 20254,689,812โˆ’39,9536.68
30 Sep 20254,729,765โˆ’572,8116.50
15 Sep 20255,302,576โˆ’411,4727.78
29 Aug 20255,714,048+90,6087.77
15 Aug 20255,623,440+140,3245.54
31 Jul 20255,483,116โˆ’243,6359.13
15 Jul 20255,726,751โˆ’143,2439.29
30 Jun 20255,869,994+41,0018.35
13 Jun 20255,828,993+114,8318.47
30 May 20255,714,162โˆ’237,5345.80
15 May 20255,951,696+604,0013.60
30 Apr 20255,347,695+814,3415.84
15 Apr 20254,533,354+249,5032.84
31 Mar 20254,283,851โˆ’238,4612.85
14 Mar 20254,522,312+157,4874.44
28 Feb 20254,364,825โˆ’166,3974.07
14 Feb 20254,531,222+312,4695.54
31 Jan 20254,218,753โˆ’36,4648.35
15 Jan 20254,255,217+408,1398.58
31 Dec 20243,847,078โˆ’352,4795.71
13 Dec 20244,199,557โˆ’53,6718.66
29 Nov 20244,253,228+438,2037.21
15 Nov 20243,815,025+221,6214.67
31 Oct 20243,593,404+102,2727.61
15 Oct 20243,491,132+113,7866.36
30 Sep 20243,377,346+99,2354.81
13 Sep 20243,278,111+1,386,0112.78
30 Aug 20241,892,100โˆ’143,6454.69
15 Aug 20242,035,745โˆ’249,3602.83
31 Jul 20242,285,105โˆ’496,2244.13
15 Jul 20242,781,329+99,0825.37
28 Jun 20242,682,247+127,0182.93
14 Jun 20242,555,229โˆ’858,0933.23
31 May 20243,413,322+137,6713.22
15 May 20243,275,651โˆ’325,4524.54
30 Apr 20243,601,103โˆ’102,2536.64
15 Apr 20243,703,356+439,6237.02
28 Mar 20243,263,733+496,7644.34
15 Mar 20242,766,969+378,1863.76
29 Feb 20242,388,783+64,5013.46
15 Feb 20242,324,282+115,6515.94
31 Jan 20242,208,631+48,4873.67
12 Jan 20242,160,144โˆ’39,4273.71
29 Dec 20232,199,571โˆ’10,8323.77
15 Dec 20232,210,403โˆ’224,1333.53
30 Nov 20232,434,536โˆ’132,3783.32
15 Nov 20232,566,914โˆ’175,0683.01
31 Oct 20232,741,982+133,5222.87
13 Oct 20232,608,460โˆ’654,2135.91
29 Sep 20233,262,673โˆ’76,1237.45
15 Sep 20233,338,796+476,8516.78
31 Aug 20232,861,945+35,5325.93
15 Aug 20232,826,413โˆ’8,7565.23
31 Jul 20232,835,169โˆ’173,5497.00
14 Jul 20233,008,718+9,3236.07
30 Jun 20232,999,395+313,6013.75
15 Jun 20232,685,794โˆ’436,3524.84
31 May 20233,122,146+147,7474.79
15 May 20232,974,399+495,3085.88
28 Apr 20232,479,091+170,4677.22
14 Apr 20232,308,624โˆ’263,0446.39
31 Mar 20232,571,668+247,9695.57
15 Mar 20232,323,699โˆ’120,5053.54
28 Feb 20232,444,204โˆ’38,6423.94
15 Feb 20232,482,846โˆ’98,0854.76
31 Jan 20232,580,931โˆ’47,0046.57
13 Jan 20232,627,935โˆ’75,2305.04
30 Dec 20222,703,165+477,8633.92
15 Dec 20222,225,302+51,2313.60
30 Nov 20222,174,071โˆ’175,1704.72
15 Nov 20222,349,241โˆ’44,2073.66
31 Oct 20222,393,448+146,4066.74
14 Oct 20222,247,042โˆ’369,7085.45
30 Sep 20222,616,750โˆ’127,4183.33
15 Sep 20222,744,168โˆ’32,8915.74
31 Aug 20222,777,059โˆ’2,7986.27
15 Aug 20222,779,857+80,3214.60
29 Jul 20222,699,536โˆ’288,1096.79
15 Jul 20222,987,645+77,8117.25
30 Jun 20222,909,834โˆ’149,4935.18
15 Jun 20223,059,327โˆ’494,7916.66
31 May 20223,554,118+342,3916.24
13 May 20223,211,727โˆ’84,8344.73
29 Apr 20223,296,561โˆ’462,4046.51
14 Apr 20223,758,965+172,0906.68
31 Mar 20223,586,875โˆ’195,1897.57
15 Mar 20223,782,064โˆ’276,2185.31
28 Feb 20224,058,282โˆ’258,3996.83
15 Feb 20224,316,681+41,5688.95
31 Jan 20224,275,113+157,0686.73
14 Jan 20224,118,045โˆ’324,3924.98
31 Dec 20214,442,437+30,3828.29
15 Dec 20214,412,055+393,7098.41
30 Nov 20214,018,346โˆ’112,1205.64
15 Nov 20214,130,466+303,5338.33
29 Oct 20213,826,933+1,1817.17
15 Oct 20213,825,752+266,3295.76
30 Sep 20213,559,423โˆ’42,5564.69
15 Sep 20213,601,979โˆ’108,2865.09
31 Aug 20213,710,265โˆ’545,5315.58
13 Aug 20214,255,796+44,0784.09
30 Jul 20214,211,718+96,2408.53
15 Jul 20214,115,478+115,7228.21
30 Jun 20213,999,756โˆ’509,2176.25
15 Jun 20214,508,973สณ+613,2856.56
28 May 20213,895,688+285,8187.86
14 May 20213,609,870โˆ’1,646,7493.68
30 Apr 20215,256,619+525,68410.10
15 Apr 20214,730,935+35,10810.36
31 Mar 20214,695,827+169,6739.66
15 Mar 20214,526,154+183,5228.26
26 Feb 20214,342,632+220,1655.66
12 Feb 20214,122,467+955,3782.98
29 Jan 20213,167,089โˆ’70,6537.98
15 Jan 20213,237,742โˆ’221,7325.89
31 Dec 20203,459,474โˆ’16,4498.01
15 Dec 20203,475,923โˆ’177,6457.43
30 Nov 20203,653,568+42,7469.31
13 Nov 20203,610,822โˆ’449,8735.84
30 Oct 20204,060,695โˆ’105,38010.93
15 Oct 20204,166,075โˆ’593,9267.29
30 Sep 20204,760,001+1,107,0903.69
15 Sep 20203,652,911+421,1324.21
31 Aug 20203,231,779+136,9117.73
14 Aug 20203,094,868โˆ’395,7314.60
31 Jul 20203,490,599+28,0777.50
15 Jul 20203,462,522โˆ’175,5327.72
30 Jun 20203,638,054โˆ’98,8074.89
15 Jun 20203,736,861+903,6393.82
29 May 20202,833,222โˆ’159,1496.96
15 May 20202,992,371สณ+205,0486.47
30 Apr 20202,787,323โˆ’166,8565.69
15 Apr 20202,954,179+189,4456.26
31 Mar 20202,764,734โˆ’409,7303.81
13 Mar 20203,174,464โˆ’275,2213.21
28 Feb 20203,449,685+265,6454.06
14 Feb 20203,184,040+64,3209.00
31 Jan 20203,119,720โˆ’263,2037.94
15 Jan 20203,382,923โˆ’5,5717.56
31 Dec 20193,388,494+156,8129.90
13 Dec 20193,231,682+155,0515.99
29 Nov 20193,076,631+148,5594.53
15 Nov 20192,928,072+281,6954.97
31 Oct 20192,646,377โˆ’257,0527.15
15 Oct 20192,903,429โˆ’339,6515.22
30 Sep 20193,243,080+422,9546.88
13 Sep 20192,820,126+93,5324.60
30 Aug 20192,726,594โˆ’52,8956.29
15 Aug 20192,779,489+183,0075.71
31 Jul 20192,596,482+334,2907.47
15 Jul 20192,262,192+18,6825.33
28 Jun 20192,243,510+221,6883.89
14 Jun 20192,021,822สณ+58,4474.01
31 May 20191,963,375โˆ’195,4194.00
15 May 20192,158,794+159,5864.27
30 Apr 20191,999,208โˆ’340,5863.71
15 Apr 20192,339,794+86,3084.87
29 Mar 20192,253,486โˆ’285,3893.01
15 Mar 20192,538,875+38,5683.61
28 Feb 20192,500,307+221,0822.86
15 Feb 20192,279,225โˆ’131,6703.93
31 Jan 20192,410,895+377,9783.68
15 Jan 20192,032,917+128,9352.72
31 Dec 20181,903,982+159,4502.83
14 Dec 20181,744,532+31,8982.01
30 Nov 20181,712,634โˆ’160,5732.26
15 Nov 20181,873,207โˆ’126,1461.80
31 Oct 20181,999,353โˆ’81,7154.58
15 Oct 20182,081,068+237,9454.58
28 Sep 20181,843,123+6,3064.46
14 Sep 20181,836,817โˆ’38,3834.39
31 Aug 20181,875,200โˆ’329,2713.66
15 Aug 20182,204,471โˆ’84,6294.83
31 Jul 20182,289,100โˆ’510,6247.03
13 Jul 20182,799,724สณ+173,9156.06
29 Jun 20182,625,809+654,0192.79
15 Jun 20181,971,790+248,9923.42
31 May 20181,722,798+151,5543.52
15 May 20181,571,244โˆ’55,1532.21
30 Apr 20181,626,397+128,1204.82
13 Apr 20181,498,277+31,8753.57
29 Mar 20181,466,402+145,3453.15
15 Mar 20181,321,057โˆ’267,0193.07
28 Feb 20181,588,076โˆ’252,0263.91
15 Feb 20181,840,102โˆ’87,2364.97
31 Jan 20181,927,338โˆ’201,6404.31
12 Jan 20182,128,978โˆ’205,5063.97
29 Dec 20172,334,484โ€“5.72

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

Questions

Frequently asked questions

What is JAZZ's short interest?
4,676,811 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 52,121 from the previous settlement.
Why is there no percentage for JAZZ?
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 JAZZ's days to cover?
7.22 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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