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HowShorted

JMST short interest NYSE Arca

JPMorgan Ultra-Short Municipal. 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
112,082
vs previous settlement
+21,739 (+24.1%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for JMST: 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
11,657
11 Sep 2026
Highest in window
3,358,516
22 Dec 2025
Days with a balance
179
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for JPMorgan Ultra-Short Municipal 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 3.4M shares.

History

Every FINRA settlement we hold for JMST, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 2026112,082+21,7391.00
31 Aug 202690,343−133,3551.00
14 Aug 2026223,698+76,8081.00
31 Jul 2026146,890−103,3271.00
15 Jul 2026250,217+99,9131.00
30 Jun 2026150,304+9,9511.00
15 Jun 2026140,353−194,2461.00
29 May 2026334,599+181,0131.00
15 May 2026153,586+95,3311.00
30 Apr 202658,255+56,9931.00
15 Apr 20261,262−232,7851.00
31 Mar 2026234,047−117,9581.00
13 Mar 2026352,005+282,2121.00
27 Feb 202669,793−350,4061.00
13 Feb 2026420,199+154,9101.00
30 Jan 2026265,289−144,9821.00
15 Jan 2026410,271+165,5751.00
31 Dec 2025244,696+203,3401.00
15 Dec 202541,356−45,6351.00
28 Nov 202586,991−69,0661.00
14 Nov 2025156,057−189,3741.00
31 Oct 2025345,431+262,6001.00
15 Oct 202582,831−174,8571.00
30 Sep 2025257,688+67,5131.00
15 Sep 2025190,175+25,3411.00
29 Aug 2025164,834−7591.00
15 Aug 2025165,593−91,8281.00
31 Jul 2025257,421+16,1411.00
15 Jul 2025241,280+46,7821.00
30 Jun 2025194,498+80,5201.00
13 Jun 2025113,978−19,1221.00
30 May 2025133,100−121,3661.00
15 May 2025254,466+93,6741.00
30 Apr 2025160,792+106,2571.00
15 Apr 202554,535−61,7371.00
31 Mar 2025116,272+30,3801.00
14 Mar 202585,892+52,1781.00
28 Feb 202533,714−278,5571.00
14 Feb 2025312,271−230,7611.00
31 Jan 2025543,032+202,1371.08
15 Jan 2025340,895+130,3551.00
31 Dec 2024210,540−228,4931.00
13 Dec 2024439,033+245,8091.03
29 Nov 2024193,224−216,0951.00
15 Nov 2024409,319+286,1021.02
31 Oct 2024123,217−22,3371.00
15 Oct 2024145,554−36,9941.00
30 Sep 2024182,548+2,5141.00
13 Sep 2024180,034−393,1401.00
30 Aug 2024573,174+428,7611.00
15 Aug 2024144,413+96,4571.00
31 Jul 202447,956−102,2561.00
15 Jul 2024150,212−2,2191.00
28 Jun 2024152,431−7,7451.00
14 Jun 2024160,176+33,7021.00
31 May 2024126,474−29,2181.00
15 May 2024155,692+95,1881.00
30 Apr 202460,504+52,5151.00
15 Apr 20247,989−162,2931.00
28 Mar 2024170,282−9,6731.00
15 Mar 2024179,955+16,2701.00
29 Feb 2024163,685−365,1791.00
15 Feb 2024528,864+371,6721.25
31 Jan 2024157,192+42,2651.00
12 Jan 2024114,927+80,3531.00
29 Dec 202334,574+6,3911.00
15 Dec 202328,183−392,9601.00
30 Nov 2023421,143+341,7261.08
15 Nov 202379,417−34,6151.00
31 Oct 2023114,032−349,0841.00
13 Oct 2023463,116+311,9621.00
29 Sep 2023151,154+14,8541.00
15 Sep 2023136,300−302,3801.00
31 Aug 2023438,680−85,0461.16
15 Aug 2023523,726+386,9271.45
31 Jul 2023136,799−100,9331.00
14 Jul 2023237,732−145,9721.00
30 Jun 2023383,704+192,4971.33
15 Jun 2023191,207−1,207,7521.00
31 May 20231,398,959+1,256,2922.55
15 May 2023142,667−422,7741.00
28 Apr 2023565,441−60,8931.82
14 Apr 2023626,334+134,1461.61
31 Mar 2023492,188+4,7771.55
15 Mar 2023487,411+288,5121.02
28 Feb 2023198,899−845,8351.00
15 Feb 20231,044,734+653,5892.89
31 Jan 2023391,145−672,0621.00
13 Jan 20231,063,207+716,6642.30
30 Dec 2022346,543−75,1271.00
15 Dec 2022421,670+352,3721.00
30 Nov 202269,298+6,0731.00
15 Nov 202263,225−1,338,8941.00
31 Oct 20221,402,119+627,5652.10
14 Oct 2022774,554−487,7871.00
30 Sep 20221,262,341+1,059,8911.79
15 Sep 2022202,450−6,116,5531.00
31 Aug 20226,319,003−186,3919.76
15 Aug 20226,505,394−1,397,78911.01
29 Jul 20227,903,183+7,568,89013.30
15 Jul 2022334,293+67,2401.00
30 Jun 2022267,053−976,6951.00
15 Jun 20221,243,748−3,570,4531.50
31 May 20224,814,201+3,230,3185.57
13 May 20221,583,883+1,036,4941.42
29 Apr 2022547,389−1,382,6781.00
14 Apr 20221,930,067+1,745,4341.73
31 Mar 2022184,633−229,4771.00
15 Mar 2022414,110−222,5811.00
28 Feb 2022636,691+376,3511.00
15 Feb 2022260,340−2,784,2531.00
31 Jan 20223,044,593+2,598,2243.91
14 Jan 2022446,369+47,8511.00
31 Dec 2021398,518−910,4961.00
15 Dec 20211,309,014−499,5922.57
30 Nov 20211,808,606+1,762,6905.19
15 Nov 202145,916−11,1651.00
29 Oct 202157,081+1,7511.00
15 Oct 202155,330−51,5691.00
30 Sep 2021106,899−79,3481.00
15 Sep 2021186,247+122,4831.00
31 Aug 202163,764−29,9851.00
13 Aug 202193,749+43,7421.00
30 Jul 202150,007−267,5531.00
15 Jul 2021317,560−22,8771.18
30 Jun 2021340,437+314,5231.00
15 Jun 202125,914−79,5891.00
28 May 2021105,503−146,4511.00
14 May 2021251,954+37,0121.00
30 Apr 2021214,942−251,6771.00
15 Apr 2021466,619+309,8941.29
31 Mar 2021156,725+137,7161.00
15 Mar 202119,009−37,5311.00
26 Feb 202156,540+28,3101.00
12 Feb 202128,230−57,3181.00
29 Jan 202185,548+77,3571.00
15 Jan 20218,191−72,8551.00
31 Dec 202081,046+46,3041.00
15 Dec 202034,742−3,4191.00
30 Nov 202038,161+24,0331.00
13 Nov 202014,128+12,7761.00
30 Oct 20201,352−8,2661.00
15 Oct 20209,618−37,5001.00
30 Sep 202047,118+17,0221.00
15 Sep 202030,096+9,9581.00
31 Aug 202020,138+4,9811.00
14 Aug 202015,157−24,6651.00
31 Jul 202039,822+21,6831.00
15 Jul 202018,139−17,1021.00
30 Jun 202035,241−32,2701.00
15 Jun 202067,511−232,5671.00
29 May 2020300,078+235,4282.26
15 May 202064,650+22,8751.00
30 Apr 202041,775+26,2741.00
15 Apr 202015,501−97,6751.00
31 Mar 2020113,176+100,6621.34
13 Mar 202012,514−13,4331.00
28 Feb 202025,947+11,8991.00
14 Feb 202014,048+6,7421.00
31 Jan 20207,306+1,8051.00
15 Jan 20205,501−23,8451.00
31 Dec 201929,346+19,0831.21
13 Dec 201910,263+7,8011.00
29 Nov 20192,462+1321.00
15 Nov 20192,330+1,1651.00
15 Oct 20191,165−3,5931.00
30 Sep 20194,758−18,7311.00
13 Sep 201923,489+21,8631.00
30 Aug 20191,626−231.00
15 Aug 20191,649−3,9091.00
31 Jul 20195,558−3,0591.00
15 Jul 20198,617+7,8531.00
14 Jun 2019764−11,8341.00
31 May 201912,598+5,1411.00
15 May 20197,457−2,7481.00
30 Apr 201910,205+2,5061.00
15 Apr 20197,699−3,9411.00
29 Mar 201911,640−4,2611.00
15 Mar 201915,901+14,9731.00
28 Feb 2019928−11,4801.00
15 Feb 201912,408+6,6711.00
31 Jan 20195,737−1,5471.00
15 Jan 20197,284−23,0371.00
31 Dec 201830,321+15,7632.52
14 Dec 201814,558+8,1161.00
30 Nov 20186,442−41,4801.60
15 Nov 201847,922+47,75510.69
31 Oct 2018167–1.00

Scroll inside the table for earlier settlements, back to 31 Oct 2018.

Questions

Frequently asked questions

What is JMST's short interest?
112,082 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 21,739 from the previous settlement.
Why is there no percentage for JMST?
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 JMST'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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