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HowShorted

MMCA short interest NYSE Arca

NYLIM MacKay California Muni I. 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
65,256
vs previous settlement
โˆ’11,472 (-15.0%)
days to cover
3.22
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for MMCA: 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
1,289
14 Sep 2026
Highest in window
60,459
5 Dec 2025
Days with a balance
123
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for NYLIM MacKay California Muni I 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 60K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202665,256โˆ’11,4723.22
31 Aug 202676,728+1,1453.21
14 Aug 202675,583โˆ’18,8334.75
31 Jul 202694,416+29,9374.79
15 Jul 202664,479+19,2373.11
30 Jun 202645,242+8,7483.17
15 Jun 202636,494โˆ’2,3461.23
29 May 202638,840+35,9511.00
15 May 20262,889โˆ’25,7741.00
30 Apr 202628,663+3,6593.58
15 Apr 202625,004+10,2791.00
31 Mar 202614,725+2981.00
13 Mar 202614,427โˆ’33,4651.00
27 Feb 202647,892+2,2382.38
13 Feb 202645,654+3,2112.23
30 Jan 202642,443+13,2291.94
15 Jan 202629,214โˆ’3,3092.23
31 Dec 202532,523+4122.19
15 Dec 202532,111โˆ’15,9621.70
28 Nov 202548,073โˆ’13,4952.56
14 Nov 202561,568โˆ’10,9653.96
31 Oct 202572,533+29,8668.84
15 Oct 202542,667+15,8881.00
30 Sep 202526,779+1,8225.81
15 Sep 202524,957โˆ’10,1637.13
29 Aug 202535,120+25,3532.32
15 Aug 20259,767+4,3713.55
31 Jul 20255,396โˆ’32,6541.63
15 Jul 202538,050โˆ’4,0115.95
30 Jun 202542,061+2,5244.53
13 Jun 202539,537+4,81411.07
30 May 202534,723โˆ’9,77610.09
15 May 202544,499+17,01212.16
30 Apr 202527,487+4,7814.90
15 Apr 202522,706โˆ’4,6185.05
31 Mar 202527,324+8,7467.22
14 Mar 202518,578โˆ’8,7877.45
28 Feb 202527,365โˆ’1,98119.74
14 Feb 202529,346โˆ’1,08819.19
31 Jan 202530,434โˆ’4,5076.18
15 Jan 202534,941+6,6749.36
31 Dec 202428,267+19412.23
13 Dec 202428,073โˆ’2,6098.77
29 Nov 202430,682+2,73212.92
15 Nov 202427,950+9,3696.37
31 Oct 202418,581+4,4086.82
15 Oct 202414,173โˆ’1,7023.65
30 Sep 202415,875โˆ’58231.75
13 Sep 202416,457+3,3646.78
30 Aug 202413,093+2,3775.55
15 Aug 202410,716โˆ’6,8702.95
31 Jul 202417,586+13,4034.37
15 Jul 20244,183+2,0971.42
28 Jun 20242,086+1,9181.00
31 May 2024168+331.00
15 May 2024135โˆ’2781.00
30 Apr 2024413โˆ’2,2381.00
15 Apr 20242,651+1,5911.00
28 Mar 20241,060โˆ’1,2681.00
15 Mar 20242,328โˆ’1,0111.00
29 Feb 20243,339โˆ’1,6411.00
15 Feb 20244,980โˆ’6601.00
31 Jan 20245,640โˆ’6002.35
12 Jan 20246,240+4,6441.00
29 Dec 20231,596+4611.00
15 Dec 20231,135+9371.00
30 Nov 2023198+1791.00
15 Nov 202319สณโˆ’53,0591.00
31 Oct 202353,078+6,85814.57
13 Oct 202346,220+45,6576.97
29 Sep 2023563+4841.00
15 Sep 202379โˆ’2,5901.00
31 Aug 20232,669โˆ’3,7531.00
15 Aug 20236,422+3,2441.51
31 Jul 20233,178+3,0571.04
14 Jul 2023121โˆ’3,9491.00
30 Jun 20234,070+2,1041.00
15 Jun 20231,966โˆ’773.03
31 May 20232,043โˆ’6,1751.76
15 May 20238,218+3,3044.49
28 Apr 20234,914+1,7964.16
14 Apr 20233,118โˆ’15111.77
31 Mar 20233,269+4071.65
15 Mar 20232,862โˆ’841.00
28 Feb 20232,946+1,1874.13
15 Feb 20231,759+4001.00
31 Jan 20231,359โˆ’685.52
13 Jan 20231,427+1,0051.52
30 Dec 2022422โˆ’2201.00
15 Dec 2022642+4691.00
30 Nov 2022173โˆ’3311.00
15 Nov 2022504โˆ’4,8351.00
31 Oct 20225,339+5,3341.06
14 Oct 2022501.00
30 Sep 20225โˆ’241.00
15 Sep 202229โˆ’421.00
31 Aug 202271+451.00
15 Aug 202226โˆ’4,2151.00
29 Jul 20224,241+4,2403.29
15 Jul 20221โˆ’48,2471.00
15 Jun 202248,248+47,9375.20
31 May 2022311+831.00
13 May 2022228+1881.33
29 Apr 202240+11.00
14 Apr 202239โˆ’2201.00
31 Mar 2022259โˆ’10,4441.00
15 Mar 202210,703+10,3036.03
28 Feb 2022400+3991.00
15 Feb 20221โˆ’6,1201.00
31 Jan 20226,121+4,30113.82
14 Jan 20221,820+1,8186.01
31 Dec 20212โ€“1.00

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

Questions

Frequently asked questions

What is MMCA's short interest?
65,256 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 11,472 from the previous settlement.
Why is there no percentage for MMCA?
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 MMCA's days to cover?
3.22 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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