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HowShorted

JMBS short interest NYSE Arca

Janus Henderson Mortgage-Backe. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: exchange-traded product: its share count floats with creation and redemption.

Shares short
444,876
vs previous settlement
+234,293 (+111.3%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for JMBS: 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.

Latest balance
1
14 Sep 2026
Highest in window
592,866
8 Oct 2025
Days with a balance
113
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Janus Henderson Mortgage-Backe 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 593K shares.

History

Every FINRA settlement we hold for JMBS, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 2026444,876+234,2931.00
31 Aug 2026210,583+184,5781.00
14 Aug 202626,005−412,1221.00
31 Jul 2026438,127−14,4881.00
15 Jul 2026452,615+365,9111.00
30 Jun 202686,704−327,0101.00
15 Jun 2026413,714+203,6571.00
29 May 2026210,057−614,3071.00
15 May 2026824,364+585,1701.41
30 Apr 2026239,194+75,7131.00
15 Apr 2026163,481+97,0871.00
31 Mar 202666,394−210,6181.00
13 Mar 2026277,012+106,7981.00
27 Feb 2026170,214+125,9811.00
13 Feb 202644,233−23,4971.00
30 Jan 202667,730−198,4511.00
15 Jan 2026266,181+31,1791.00
31 Dec 2025235,002+99,8291.00
15 Dec 2025135,173−993,6111.00
28 Nov 20251,128,784+373,4922.30
14 Nov 2025755,292−549,9171.35
31 Oct 20251,305,209+917,4731.80
15 Oct 2025387,736+307,5971.00
30 Sep 202580,139−204,8181.00
15 Sep 2025284,957−423,9111.00
29 Aug 2025708,868+498,8361.00
15 Aug 2025210,032−361,3211.00
31 Jul 2025571,353+280,5641.00
15 Jul 2025290,789+121,4801.00
30 Jun 2025169,309+2,1011.00
13 Jun 2025167,208+114,6451.00
30 May 202552,563−204,3771.00
15 May 2025256,940−82,0221.00
30 Apr 2025338,962−439,8801.00
15 Apr 2025778,842−949,4971.00
31 Mar 20251,728,339+546,8582.80
14 Mar 20251,181,481+741,8091.43
28 Feb 2025439,672−4,2671.00
14 Feb 2025443,939−193,1841.00
31 Jan 2025637,123+542,5221.00
15 Jan 202594,601−44,8261.00
31 Dec 2024139,427−11,9931.00
13 Dec 2024151,420+24,1741.00
29 Nov 2024127,246−108,8681.00
15 Nov 2024236,114+12,3661.00
31 Oct 2024223,748+153,9121.00
15 Oct 202469,836−137,1721.00
30 Sep 2024207,008−159,7161.00
13 Sep 2024366,724−65,1241.00
30 Aug 2024431,848+373,3041.19
15 Aug 202458,544+5,2141.00
31 Jul 202453,330−30,9931.00
15 Jul 202484,323+5,3401.00
28 Jun 202478,983+41,1521.00
14 Jun 202437,831+27,6931.00
31 May 202410,138−160,3391.00
15 May 2024170,477+101,2111.00
30 Apr 202469,266−39,4811.00
15 Apr 2024108,747−5,6731.00
28 Mar 2024114,420−60,0331.00
15 Mar 2024174,453+113,1181.00
29 Feb 202461,335−388,2291.00
15 Feb 2024449,564+253,8581.00
31 Jan 2024195,706+103,9461.00
12 Jan 202491,760−159,8001.00
29 Dec 2023251,560+73,8831.00
15 Dec 2023177,677−10,745,6871.00
30 Nov 202310,923,364+10,578,3533.19
15 Nov 2023345,011+137,8161.00
31 Oct 2023207,195−56,0721.00
13 Oct 2023263,267−165,0301.00
29 Sep 2023428,297+336,2231.04
15 Sep 202392,074−298,0671.00
31 Aug 2023390,141−667,7002.36
15 Aug 20231,057,841−109,0995.41
31 Jul 20231,166,940+1,046,4491.60
14 Jul 2023120,491+44,3741.00
30 Jun 202376,117−44,0771.00
15 Jun 2023120,194−28,7231.00
31 May 2023148,917−5,2461.00
15 May 2023154,163+56,4291.00
28 Apr 202397,734−6,9831.00
14 Apr 2023104,717+52,3981.00
31 Mar 202352,319−55,7631.00
15 Mar 2023108,082+37,7401.00
28 Feb 202370,342+24,5521.00
15 Feb 202345,790−78,6271.00
31 Jan 2023124,417+98,0061.00
13 Jan 202326,411−95,6611.00
30 Dec 2022122,072−28,1281.00
15 Dec 2022150,200+112,0631.00
30 Nov 202238,137−114,1131.00
15 Nov 2022152,250−188,4351.00
31 Oct 2022340,685+73,2082.21
14 Oct 2022267,477+225,9451.38
30 Sep 202241,532−68,9391.00
15 Sep 2022110,471+77,7381.97
31 Aug 202232,733−260,9971.00
15 Aug 2022293,730+284,4853.94
29 Jul 20229,245+7111.00
15 Jul 20228,534−434,7391.00
30 Jun 2022443,273+357,5782.54
15 Jun 202285,695−160,3871.00
31 May 2022246,082+232,9931.47
13 May 202213,089−276,4641.00
29 Apr 2022289,553+16,6211.00
14 Apr 2022272,932+259,8611.16
31 Mar 202213,071+8,4901.00
15 Mar 20224,581−40,6391.00
28 Feb 202245,220−4,8101.00
15 Feb 202250,030−302,3881.00
31 Jan 2022352,418+321,5301.41
14 Jan 202230,888+18,5411.00
31 Dec 202112,347+3,4881.00
15 Dec 20218,859−5121.00
30 Nov 20219,371−5,1001.00
15 Nov 202114,471+3,5851.00
29 Oct 202110,886−3,1211.00
15 Oct 202114,007−36,8921.00
30 Sep 202150,899+40,4601.00
15 Sep 202110,439+3,0901.00
31 Aug 20217,349+5,0831.00
13 Aug 20212,266−18,0591.00
30 Jul 202120,325+18,9981.00
15 Jul 20211,327−9,9331.00
30 Jun 202111,260+9,4101.00
15 Jun 20211,850−4,2451.00
28 May 20216,095−17,5421.00
14 May 202123,637+17,0081.00
30 Apr 20216,629−14,8211.00
15 Apr 202121,450−4,3741.00
31 Mar 202125,824+6,7201.00
15 Mar 202119,104+12,2771.00
26 Feb 20216,827−25,4881.00
12 Feb 202132,315+10,7671.00
29 Jan 202121,548−51,0961.00
15 Jan 202172,644+53,4891.00
31 Dec 202019,155−5,4991.00
15 Dec 202024,654−8,4651.00
30 Nov 202033,119+25,2511.03
13 Nov 20207,868−12,1451.00
30 Oct 202020,013+4,4821.00
15 Oct 202015,531−8,3011.00
30 Sep 202023,832+5,9751.00
15 Sep 202017,857−13,2051.00
31 Aug 202031,062−4,1811.00
14 Aug 202035,243+13,5111.00
31 Jul 202021,732−36,4461.00
15 Jul 202058,178+51,1191.00
30 Jun 20207,059−28,3731.00
15 Jun 202035,432+30,1111.00
29 May 20205,321−57,5141.00
15 May 202062,835−50,8942.13
30 Apr 2020113,729+104,0372.00
15 Apr 20209,692−13,7181.00
31 Mar 202023,410+15,2971.00
13 Mar 20208,113−24,6601.00
28 Feb 202032,773+21,8881.45
14 Feb 202010,885−14,3791.00
31 Jan 202025,264+13,6691.00
15 Jan 202011,595−13,0211.00
31 Dec 201924,616−1601.00
13 Dec 201924,776−53,7311.33
29 Nov 201978,507+77,4544.66
15 Nov 20191,053−18,3381.00
31 Oct 201919,391−34,2341.00
15 Oct 201953,625+21,2384.17
30 Sep 201932,387+2,0732.40
13 Sep 201930,314+2,1061.00
30 Aug 201928,208+9,6431.92
15 Aug 201918,565+3,5471.71
31 Jul 201915,018+13,4301.00
15 Jul 20191,588−11,3971.00
28 Jun 201912,985+5,1941.00
14 Jun 20197,791−2633.63
31 May 20198,054−9,9261.56
15 May 201917,980+5,9852.26
30 Apr 201911,995+3,7061.00
15 Apr 20198,289+2,6561.45
29 Mar 20195,633+4,3541.04
15 Mar 20191,279+3691.00
28 Feb 2019910+3001.00
15 Feb 2019610−3,8441.00
31 Jan 20194,454+2,8631.00
15 Jan 20191,591−43,9991.00
31 Dec 201845,590−86,9091.00
14 Dec 2018132,499+18,86925.75
30 Nov 2018113,630−79,23626.12
15 Nov 2018192,866+134,45414.32
31 Oct 201858,412+3,25955.05
15 Oct 201855,153+45,31312.06
28 Sep 20189,840–7.80

Scroll inside the table for earlier settlements, back to 28 Sep 2018.

Questions

Frequently asked questions

What is JMBS's short interest?
444,876 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 234,293 from the previous settlement.
Why is there no percentage for JMBS?
Because no defensible share count exists to divide by: exchange-traded product: its share count floats with creation and redemption. An exchange-traded product's share count changes every day as units are created and redeemed, so no filing gives a stable count to divide by. FINRA's shares-short figure is exact; a percentage of it would not be.
What is JMBS's days to cover?
1.00 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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