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HowShorted

MYY short interest NYSE Arca

ProShares Short MidCap400. 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
2,572
vs previous settlement
−1,115 (-30.2%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for MYY: 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
14,120
4 Sep 2026
Highest in window
51,065
10 Jun 2026
Days with a balance
86
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for ProShares Short MidCap400 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 51K shares.

History

Every FINRA settlement we hold for MYY, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20262,572−1,1151.00
31 Aug 20263,687−1291.98
14 Aug 20263,816−8321.78
31 Jul 20264,648−5511.00
15 Jul 20265,199+2,1551.19
30 Jun 20263,044+811.00
15 Jun 20262,963−3,1321.00
29 May 20266,095+3,3471.00
15 May 20262,748−15,0461.00
30 Apr 202617,794+14,8662.11
15 Apr 20262,928+371.00
31 Mar 20262,891+1711.00
13 Mar 20262,720+6181.00
27 Feb 20262,102+21.00
13 Feb 20262,100−8091.00
30 Jan 20262,909+7781.00
15 Jan 20262,131+1561.00
31 Dec 20251,975−2,9041.00
15 Dec 20254,879+1,7422.53
28 Nov 20253,137−4,5571.00
14 Nov 20257,694−4,0801.00
31 Oct 202511,774+9,7421.51
15 Oct 20252,032−19,0621.00
30 Sep 202521,094+19,4343.11
15 Sep 20251,660−4961.00
29 Aug 20252,156+1621.00
15 Aug 20251,994−7911.00
31 Jul 20252,785+5301.00
15 Jul 20252,255+5121.00
30 Jun 20251,743−8421.00
13 Jun 20252,585+1,3411.00
30 May 20251,244−2,0561.00
15 May 20253,300+1,4561.00
30 Apr 20251,844−18,0411.00
15 Apr 202519,885−2,8021.00
31 Mar 202522,687−14,8981.14
14 Mar 202537,585+35,1001.00
28 Feb 20252,485+7531.00
14 Feb 20251,732−15,8791.00
31 Jan 202517,611+14,7751.00
15 Jan 20252,836+2,1621.00
31 Dec 2024674−2,1781.00
13 Dec 20242,852+2,4651.00
29 Nov 2024387−18,3881.00
15 Nov 202418,775+18,4251.00
31 Oct 2024350−731.00
15 Oct 2024423−361.00
30 Sep 2024459−4,7831.00
13 Sep 20245,242+2011.00
30 Aug 20245,041−6061.19
15 Aug 20245,647+2,7381.00
31 Jul 20242,909−5,8181.00
15 Jul 20248,727−9751.19
28 Jun 20249,702+1611.00
14 Jun 20249,541+1,7771.00
31 May 20247,764+6,2171.25
15 May 20241,547−8461.00
30 Apr 20242,393−18,2101.00
15 Apr 202420,603+16,9951.73
28 Mar 20243,608−3,3481.00
15 Mar 20246,956+4,6611.79
29 Feb 20242,295−1871.00
15 Feb 20242,482+3351.00
31 Jan 20242,147+2311.00
12 Jan 20241,916−1,6801.00
29 Dec 20233,596−1,6441.00
15 Dec 20235,240−1,6641.00
30 Nov 20236,904−26,8541.00
15 Nov 202333,758+26,4431.48
31 Oct 20237,315+3,1381.00
13 Oct 20234,177−171.00
29 Sep 20234,194−2,2751.00
15 Sep 20236,469+1,2711.00
31 Aug 20235,198−7,0371.00
15 Aug 202312,235−8,7621.00
31 Jul 202320,997+15,0641.23
14 Jul 20235,933+2751.00
30 Jun 20235,658−1,3201.00
15 Jun 20236,978+2531.00
31 May 20236,725+3,0531.00
15 May 20233,672+1,7521.00
28 Apr 20231,920−1781.00
14 Apr 20232,098−6,6801.00
31 Mar 20238,778−3,4421.00
15 Mar 202312,220−9,2891.00
28 Feb 202321,509+11,2541.75
15 Feb 202310,255+2,4001.00
31 Jan 20237,855−54,8191.00
13 Jan 202362,674+42,5522.94
30 Dec 202220,122−15,5241.51
15 Dec 202235,646+23,9932.54
30 Nov 202211,653−7771.36
15 Nov 202212,430−3,0851.00
31 Oct 202215,515+6,2281.00
14 Oct 20229,287−2,1681.00
30 Sep 202211,455−12,1471.00
15 Sep 202223,602+10,2341.00
31 Aug 202213,368+10,4041.00
15 Aug 20222,964−8,7661.00
29 Jul 202211,730+9,2431.00
15 Jul 20222,487−13,3881.00
30 Jun 202215,875+7,8661.00
15 Jun 20228,009−11,2761.00
31 May 202219,285+9,6901.00
13 May 20229,595−1,9711.00
29 Apr 202211,566+8,8311.04
14 Apr 20222,735−2,8681.00
31 Mar 20225,603−13,2331.00
15 Mar 202218,836+13,4421.00
28 Feb 20225,394−1,3931.00
15 Feb 20226,787−63,5611.00
31 Jan 202270,348+65,2932.08
14 Jan 20225,055+1001.00
31 Dec 20214,955−6501.00
15 Dec 20215,605−6961.00
30 Nov 20216,301−761.50
15 Nov 20216,377+6411.00
29 Oct 20215,736−3421.78
15 Oct 20216,078+3,6501.00
30 Sep 20212,428−2,5451.00
15 Sep 20214,973+3,3641.09
31 Aug 20211,609−281.00
13 Aug 20211,637−5771.00
30 Jul 20212,214−6,3311.00
15 Jul 20218,545+6,9371.56
30 Jun 20211,608+1,2761.00
15 Jun 2021332−2871.00
28 May 2021619+3001.00
14 May 2021319−1,0291.00
30 Apr 20211,348+9121.00
15 Apr 2021436+271.00
31 Mar 2021409−2061.00
15 Mar 2021615−5,6701.00
26 Feb 20216,285+5,2031.34
12 Feb 20211,082−3,2351.00
29 Jan 20214,317+3,6571.00
15 Jan 2021660+11.00
31 Dec 2020659−1,0531.00
15 Dec 20201,712+7101.00
30 Nov 20201,002−6791.00
13 Nov 20201,681−7,7341.00
30 Oct 20209,415+7,7711.00
15 Oct 20201,644−8,2771.00
30 Sep 20209,921−951.00
15 Sep 202010,016+8,4071.00
31 Aug 20201,609−1,1471.00
14 Aug 20202,756−2,6961.00
31 Jul 20205,452+2,2581.00
15 Jul 20203,194−14,1781.00
30 Jun 202017,372+11,2921.00
15 Jun 20206,080−8,9401.00
29 May 202015,020−29,3881.00
15 May 202044,408−28,1602.09
30 Apr 202072,568+35,6951.00
15 Apr 202036,873+32,7801.00
31 Mar 20204,093−10,0691.00
13 Mar 202014,162−4,4871.00
28 Feb 202018,649+6,4471.61
14 Feb 202012,202+10,2954.49
31 Jan 20201,907+1761.00
15 Jan 20201,731+921.00
31 Dec 20191,639−1,6551.00
13 Dec 20193,294+3351.09
29 Nov 20192,959−1,7151.00
15 Nov 20194,674+561.00
31 Oct 20194,618−1,6385.35
15 Oct 20196,256+1,9382.26
30 Sep 20194,318+1,6422.34
13 Sep 20192,676−6091.00
30 Aug 20193,285−11,1901.50
15 Aug 201914,475−12,2201.00
31 Jul 201926,695+13,8278.02
15 Jul 201912,868+8,8474.34
28 Jun 20194,021−1,6551.00
14 Jun 20195,676+2,9331.00
31 May 20192,743+1,4281.00
15 May 20191,315+131.00
30 Apr 20191,302−2,0741.00
15 Apr 20193,376+1,9691.11
29 Mar 20191,407−7401.00
15 Mar 20192,147−2,1481.00
28 Feb 20194,295−14,0111.96
15 Feb 201918,306−23,1232.27
31 Jan 201941,429+14,8781.45
15 Jan 201926,551+24,5471.00
31 Dec 20182,004−1691.00
14 Dec 20182,173+7391.00
30 Nov 20181,434−41.00
15 Nov 20181,438−8761.00
31 Oct 20182,314+1,2651.00
15 Oct 20181,049−2621.00
28 Sep 20181,311−4081.00
14 Sep 20181,719−151.00
31 Aug 20181,734−8471.33
15 Aug 20182,581+3601.00
31 Jul 20182,221+2801.00
13 Jul 20181,941+1281.50
29 Jun 20181,813+3011.00
15 Jun 20181,512+101.00
31 May 20181,502−8,3441.10
15 May 20189,846+2541.00
30 Apr 20189,592−35,8801.00
13 Apr 201845,472+38,8852.23
29 Mar 20186,587−5,6411.00
15 Mar 201812,228−64,4481.00
28 Feb 201876,676+1,0923.17
15 Feb 201875,584+63,2981.00
31 Jan 201812,286+6,2861.06
12 Jan 20186,000−11.00
29 Dec 20176,001–1.00

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

Questions

Frequently asked questions

What is MYY's short interest?
2,572 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 1,115 from the previous settlement.
Why is there no percentage for MYY?
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 MYY'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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