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HowShorted

MAMB short interest Cboe BZX

Monarch Ambassador Income Inde. 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
3,199
vs previous settlement
+924 (+40.6%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for MAMB: 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
84
11 Sep 2026
Highest in window
55,274
26 Dec 2025
Days with a balance
156
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Monarch Ambassador Income Inde 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 55K shares.

History

Every FINRA settlement we hold for MAMB, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20263,199+9241.00
31 Aug 20262,275−5,0471.00
14 Aug 20267,322−26,1501.00
31 Jul 202633,472+15,1451.52
15 Jul 202618,327+9,6651.00
30 Jun 20268,662−11,9771.00
15 Jun 202620,639+9,1211.00
29 May 202611,518+4,8731.00
15 May 20266,645−65,0601.00
30 Apr 202671,705+61,6541.21
15 Apr 202610,051−3,5831.00
31 Mar 202613,634+10,9771.00
13 Mar 20262,657−32,0311.00
27 Feb 202634,688+701.00
13 Feb 202634,618+12,3901.07
30 Jan 202622,228−10,4481.00
15 Jan 202632,676+22,5621.78
31 Dec 202510,114+6,3231.00
15 Dec 20253,791−3071.00
28 Nov 20254,098+3,6991.00
14 Nov 2025399−7,7291.00
31 Oct 20258,128−4661.00
15 Oct 20258,594+6,3931.00
30 Sep 20252,201−1,1331.00
15 Sep 20253,334−8,1751.00
29 Aug 202511,509+11,4491.00
15 Aug 202560−2,3701.00
31 Jul 20252,430−7,4261.00
15 Jul 20259,856+1,7171.00
30 Jun 20258,139+6,0791.00
13 Jun 20252,060−5,5631.00
30 May 20257,623−18,0381.00
15 May 202525,661+19,0721.42
30 Apr 20256,589+3,6121.00
15 Apr 20252,977−2,7151.00
31 Mar 20255,692−3,7611.00
14 Mar 20259,453−1311.00
28 Feb 20259,584+2,7681.00
14 Feb 20256,816−15,7171.00
31 Jan 202522,533+21,1581.00
15 Jan 20251,375+3241.00
31 Dec 20241,051−1,7971.00
13 Dec 20242,848+1,3921.00
29 Nov 20241,456−1,6861.00
15 Nov 20243,142−6011.00
31 Oct 20243,743−10,0771.00
15 Oct 202413,820+3,4761.00
30 Sep 202410,344+7,8261.00
13 Sep 20242,518−1,2691.00
30 Aug 20243,787−14,1571.00
15 Aug 202417,944+15,3281.09
31 Jul 20242,616−5,9441.00
15 Jul 20248,560+6,9161.00
28 Jun 20241,644+9321.00
14 Jun 2024712−2,7521.00
31 May 20243,464+1,9821.00
15 May 20241,482−5,9251.00
30 Apr 20247,407+6,9281.12
15 Apr 2024479+2571.00
28 Mar 2024222+1221.00
15 Mar 2024100−4431.00
29 Feb 2024543−1661.00
15 Feb 2024709−4,4381.00
31 Jan 20245,147−27,8031.00
12 Jan 202432,950+31,1582.33
29 Dec 20231,792−1,5791.00
15 Dec 20233,371+1,3371.00
30 Nov 20232,034−10,6761.00
15 Nov 202312,710+7,1051.00
31 Oct 20235,605+1,9421.00
13 Oct 20233,663−10,5171.00
29 Sep 202314,180−36,4071.02
15 Sep 202350,587+50,2662.93
31 Aug 2023321−4,1641.00
31 Jul 20234,485−6,3421.00
14 Jul 202310,827+10,7312.05
30 Jun 202396−5181.00
15 Jun 2023614−5181.00
31 May 20231,132+1,0571.00
15 May 202375−291.00
28 Apr 2023104−6,1291.00
14 Apr 20236,233+5,1241.03
31 Mar 20231,109+1,0861.00
15 Mar 202323−1,4921.00
28 Feb 20231,515−15,2401.00
15 Feb 202316,755+14,7112.48
31 Jan 20232,044+1,2561.00
13 Jan 2023788−5,8701.00
30 Dec 20226,658+5,3201.00
15 Dec 20221,338+5671.00
30 Nov 2022771−10,1591.00
15 Nov 202210,930+9,5411.14
31 Oct 20221,389−12,1781.00
14 Oct 202213,567+12,8631.56
30 Sep 2022704−2631.00
15 Sep 2022967−9,5751.00
31 Aug 202210,542+6,9822.00
15 Aug 20223,560+2,8561.00
29 Jul 2022704−1131.00
15 Jul 2022817−1,6101.00
30 Jun 20222,427+1,5811.00
15 Jun 2022846+191.00
31 May 2022827−16,8061.00
13 May 202217,633+16,5373.37
29 Apr 20221,096−6121.00
14 Apr 20221,708−7,1721.00
31 Mar 20228,880+1,0901.00
15 Mar 20227,790+2,9621.72
28 Feb 20224,828+4,5991.48
15 Feb 2022229−7,3101.00
31 Jan 20227,539+6,6322.90
14 Jan 2022907+4601.00
31 Dec 2021447+1011.00
15 Dec 2021346−4,0531.00
30 Nov 20214,399−62.45
15 Nov 20214,405+3,6551.46
29 Oct 2021750−1,0391.00
15 Oct 20211,789−13,9181.00
30 Sep 202115,707+11,7592.63
15 Sep 20213,948+3,6251.00
31 Aug 2021323−8,7231.00
13 Aug 20219,046+7,3132.42
30 Jul 20211,733−1,9951.00
15 Jul 20213,728−10,0541.00
30 Jun 202113,782−19,9201.76
15 Jun 202133,702+22,1405.66
28 May 202111,562+10,0743.53
14 May 20211,488−7,6141.00
30 Apr 20219,102−2,3112.67
15 Apr 202111,413+2,4501.14
31 Mar 20218,963–1.00

Scroll inside the table for earlier settlements, back to 31 Mar 2021.

Questions

Frequently asked questions

What is MAMB's short interest?
3,199 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 924 from the previous settlement.
Why is there no percentage for MAMB?
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 MAMB'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.

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