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HowShorted

UMDD short interest NYSE Arca

ProShares UltraPro 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
3,158
vs previous settlement
+1,340 (+73.7%)
days to cover
1.09
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for UMDD: 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
150
1 Sep 2026
Highest in window
3,126
17 Sep 2025
Days with a balance
81
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for ProShares UltraPro 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 3.1K shares.

History

Every FINRA settlement we hold for UMDD, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20263,158+1,3401.09
31 Aug 20261,818−5,6641.00
14 Aug 20267,482+6,2641.61
31 Jul 20261,218−2,8031.00
15 Jul 20264,021+2,3671.00
30 Jun 20261,654−2,6441.00
15 Jun 20264,298+2,7331.00
29 May 20261,565+171.00
15 May 20261,548−1211.00
30 Apr 20261,669−1,9671.00
15 Apr 20263,636+2,1031.00
31 Mar 20261,533−10,5171.00
13 Mar 202612,050−3,4091.00
27 Feb 202615,459+11,3971.16
13 Feb 20264,062+3,5231.00
30 Jan 2026539−1,9371.00
15 Jan 20262,476−1,2471.00
31 Dec 20253,723−1,0691.00
15 Dec 20254,792+1,8831.00
28 Nov 20252,909−9111.00
14 Nov 20253,820+691.00
31 Oct 20253,751−7671.00
15 Oct 20254,518−8841.00
30 Sep 20255,402+491.00
15 Sep 20255,353+1,1281.00
29 Aug 20254,225−8,9281.00
15 Aug 202513,153−2,8132.09
31 Jul 202515,966+8,0302.08
15 Jul 20257,936−2231.00
30 Jun 20258,159−2,7851.00
13 Jun 202510,944+1,6451.53
30 May 20259,299−22,2081.00
15 May 202531,507+15,2092.78
30 Apr 202516,298−6,1701.40
15 Apr 202522,468+16,8641.00
31 Mar 20255,604−5,1851.00
14 Mar 202510,789+1,8011.00
28 Feb 20258,988−1,1781.00
14 Feb 202510,166−2,0701.00
31 Jan 202512,236+4,3771.00
15 Jan 20257,859−1,3371.00
31 Dec 20249,196−5,6581.00
13 Dec 202414,854−22,4361.00
29 Nov 202437,290+29,5491.63
15 Nov 20247,741−11,0111.00
31 Oct 202418,752+3,7701.50
15 Oct 202414,982+8,7471.03
30 Sep 20246,235+1,6491.00
13 Sep 20244,586+461.00
30 Aug 20244,540−7,8831.00
15 Aug 202412,423−4,6471.00
31 Jul 202417,070+14,0831.00
15 Jul 20242,987+2,2261.00
28 Jun 2024761−1421.00
14 Jun 2024903−7,5331.00
31 May 20248,436−5,3371.00
15 May 202413,773+2,9851.06
30 Apr 202410,788−2,7781.00
15 Apr 202413,566+2,6541.00
28 Mar 202410,912+9721.00
15 Mar 20249,940+9,3971.00
29 Feb 2024543+981.00
15 Feb 2024445−9261.00
31 Jan 20241,371+3311.00
12 Jan 20241,040−3821.00
29 Dec 20231,422+8471.00
15 Dec 2023575−3581.00
30 Nov 2023933−7,7531.00
15 Nov 20238,686−16,2661.00
31 Oct 202324,952+5,8221.00
13 Oct 202319,130+2,4451.31
29 Sep 202316,685+6,8311.66
15 Sep 20239,854+7161.00
31 Aug 20239,138+4,1581.00
15 Aug 20234,980−6,8151.00
31 Jul 202311,795−4,2921.00
14 Jul 202316,087+3,0751.22
30 Jun 202313,012−4071.00
15 Jun 202313,419−11,5821.00
31 May 202325,001+12,5471.98
15 May 202312,454+10,7341.00
28 Apr 20231,720−22,4531.00
14 Apr 202324,173+15,2301.21
31 Mar 20238,943+3,7681.00
15 Mar 20235,175−7331.00
28 Feb 20235,908−6,2931.00
15 Feb 202312,201−45,8571.38
31 Jan 202358,058+50,2003.41
13 Jan 20237,858−9,7831.00
30 Dec 202217,641−1,9181.00
15 Dec 202219,559+5,8781.07
30 Nov 202213,681−5,4841.00
15 Nov 202219,165−10,0331.00
31 Oct 202229,198+18,4831.00
14 Oct 202210,715−3,7941.00
30 Sep 202214,509+9221.00
15 Sep 202213,587−21,3311.00
31 Aug 202234,918−12,2521.32
15 Aug 202247,170+12,2541.93
29 Jul 202234,916+24,4551.00
15 Jul 202210,461+1,3321.00
30 Jun 20229,129+1,9641.00
15 Jun 20227,165−1,7571.00
31 May 20228,922+1,2201.00
13 May 20227,702−8101.00
29 Apr 20228,512−11,3181.00
14 Apr 202219,830−5,7881.46
31 Mar 202225,618+12,3771.38
15 Mar 202213,241+2,5361.00
28 Feb 202210,705+5,0101.00
15 Feb 20225,695−1,2291.00
31 Jan 20226,924+1,3881.00
14 Jan 20225,536−8,4561.00
31 Dec 202113,992+5,3381.00
15 Dec 20218,654−19,6881.00
30 Nov 202128,342+15,4951.32
15 Nov 202112,847+5,0001.00
29 Oct 20217,847+9871.00
15 Oct 20216,860−9271.00
30 Sep 20217,787−16,9821.00
15 Sep 202124,769+11,0531.00
31 Aug 202113,716−11,6161.00
13 Aug 202125,332−15,8281.14
30 Jul 202141,160−11,2261.26
15 Jul 202152,386−3572.43
30 Jun 202152,743−4,0511.28
15 Jun 202156,794+5,5073.26
28 May 202151,287+43,6302.01
14 May 20217,657−1,8221.00
30 Apr 20219,479−4,3251.34
15 Apr 202113,804+11,4022.27
31 Mar 20212,402−7,2401.00
15 Mar 20219,642+8,9751.24
26 Feb 2021667−2,6021.00
12 Feb 20213,269−1,5231.00
29 Jan 20214,792−3,1821.00
15 Jan 20217,974+4,3961.00
31 Dec 20203,578−1,9041.00
15 Dec 20205,482+3631.00
30 Nov 20205,119+3861.00
13 Nov 20204,733+1,1191.00
30 Oct 20203,614−2,3331.00
15 Oct 20205,947−4,0591.00
30 Sep 202010,006+8,5261.20
15 Sep 20201,480−8561.00
31 Aug 20202,336−1,3291.00
14 Aug 20203,665+5461.00
31 Jul 20203,119−1,4151.00
15 Jul 20204,534−5,1301.00
30 Jun 20209,664−2,4361.00
15 Jun 202012,100−29,2481.00
29 May 202041,348+5,5661.22
15 May 202035,782+14,9441.03
30 Apr 202020,838−2,6041.00
15 Apr 202023,442−11,1251.00
31 Mar 202034,567+23,4321.00
13 Mar 202011,135+7,3821.00
28 Feb 20203,753+1,3701.00
14 Feb 20202,383−1461.77
31 Jan 20202,529−4821.25
15 Jan 20203,011−2051.10
31 Dec 20193,216−1263.60
13 Dec 20193,342−5642.39
29 Nov 20193,906−2022.58
15 Nov 20194,108−1,8892.03
31 Oct 20195,997+3,0053.78
15 Oct 20192,992−1,3481.70
30 Sep 20194,340+1,0303.67
13 Sep 20193,310−3451.28
30 Aug 20193,655+1,5342.41
15 Aug 20192,121−7641.22
31 Jul 20192,885−9871.79
15 Jul 20193,872−7272.47
28 Jun 20194,599−1,7372.51
14 Jun 20196,336+173.42
31 May 20196,319−5351.76
15 May 20196,854+1,3211.60
30 Apr 20195,533+5331.84
15 Apr 20195,000+3453.58
29 Mar 20194,655+92.80
15 Mar 20194,646−4222.33
28 Feb 20195,068−2553.27
15 Feb 20195,323−5421.73
31 Jan 20195,865+2,5701.85
15 Jan 20193,295+6691.00
31 Dec 20182,626+3761.00
14 Dec 20182,250+2911.00
30 Nov 20181,959+951.00
15 Nov 20181,864+1,0021.00
31 Oct 2018862+1621.00
15 Oct 2018700+6381.00
28 Sep 201862−431.00
14 Sep 2018105+761.00
31 Aug 201829−6241.00
15 Aug 2018653+5691.00
31 Jul 201884+731.00
13 Jul 201811−7651.00
29 Jun 2018776−3401.00
15 Jun 20181,116+6541.00
31 May 2018462−2781.00
15 May 2018740−4,3781.00
30 Apr 20185,118−3,9712.04
13 Apr 20189,089+5082.39
29 Mar 20188,581+2,5632.50
15 Mar 20186,018−5791.62
28 Feb 20186,597−5,7361.28
15 Feb 201812,333+9,1451.06
31 Jan 20183,188+821.00
12 Jan 20183,106−3,5701.00
29 Dec 20176,676–2.98

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

Questions

Frequently asked questions

What is UMDD's short interest?
3,158 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 1,340 from the previous settlement.
Why is there no percentage for UMDD?
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 UMDD's days to cover?
1.09 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.