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HowShorted

OPTT short interest NYSE American

Ocean Power Technologies, Inc.. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: an SEC filer exists but no defensible share count is available yet.

Shares short
1,530,412
vs previous settlement
โˆ’34,442,751 (-95.7%)
days to cover
3.02
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for OPTT: 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
4,183
11 Sep 2026
Highest in window
4,896,326
7 Jan 2026
Days with a balance
149
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Ocean Power Technologies, Inc. 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 4.9M shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20261,530,412โˆ’34,442,7513.02
31 Aug 202635,973,163+7,143,7339.00
14 Aug 202628,829,430+4,544,2376.39
31 Jul 202624,285,193+2,877,0223.51
15 Jul 202621,408,171+6,164,5555.38
30 Jun 202615,243,616โˆ’8,001,4604.77
15 Jun 202623,245,076+9,314,4722.74
29 May 202613,930,604โˆ’712,7594.17
15 May 202614,643,363โˆ’796,8155.73
30 Apr 202615,440,178โˆ’1,187,6684.79
15 Apr 202616,627,846โˆ’1,820,8865.69
31 Mar 202618,448,732+1,522,8483.33
13 Mar 202616,925,884โˆ’886,2851.49
27 Feb 202617,812,169+4,733,8124.54
13 Feb 202613,078,357โˆ’5,999,6402.22
30 Jan 202619,077,997โˆ’6,166,4921.00
15 Jan 202625,244,489+8,598,6491.16
31 Dec 202516,645,840+243,6343.85
15 Dec 202516,402,206+1,093,4314.20
28 Nov 202515,308,775โˆ’2,684,0065.33
14 Nov 202517,992,781โˆ’665,7143.82
31 Oct 202518,658,495+941,7422.77
15 Oct 202517,716,753+860,2511.65
30 Sep 202516,856,502+4,457,5283.08
15 Sep 202512,398,974+22,3092.64
29 Aug 202512,376,665โˆ’433,9083.09
15 Aug 202512,810,573โˆ’1,414,5223.82
31 Jul 202514,225,095+435,9291.30
15 Jul 202513,789,166โˆ’2,157,2932.93
30 Jun 202515,946,459+4,846,6634.00
13 Jun 202511,099,796+289,2862.79
30 May 202510,810,510+92,9293.37
15 May 202510,717,581+3,167,2242.30
30 Apr 20257,550,357โˆ’3,455,8662.39
15 Apr 202511,006,223โˆ’959,6902.29
31 Mar 202511,965,913+2,522,5971.89
14 Mar 20259,443,316+1,387,2562.18
28 Feb 20258,056,060โˆ’457,8351.63
14 Feb 20258,513,895+1,861,9351.00
31 Jan 20256,651,960โˆ’4,7311.00
15 Jan 20256,656,691โˆ’1,567,1931.00
31 Dec 20248,223,884โˆ’526,1061.00
13 Dec 20248,749,990โˆ’1,806,0541.00
29 Nov 202410,556,044+7,760,7561.00
15 Nov 20242,795,288โˆ’819,8931.30
31 Oct 20243,615,181โˆ’701,8341.71
15 Oct 20244,317,015โˆ’1,629,5491.52
30 Sep 20245,946,564+1,627,7881.00
13 Sep 20244,318,776โˆ’419,5122.01
30 Aug 20244,738,288โˆ’943,7283.24
15 Aug 20245,682,016โˆ’760,1311.94
31 Jul 20246,442,147โˆ’238,0281.00
15 Jul 20246,680,175โˆ’2,833,9591.00
28 Jun 20249,514,134+5,373,2011.00
14 Jun 20244,140,933โˆ’937,7091.00
31 May 20245,078,642+2,129,0801.00
15 May 20242,949,562+109,5494.16
30 Apr 20242,840,013โˆ’196,5852.14
15 Apr 20243,036,598+120,8527.12
28 Mar 20242,915,746โˆ’420,3977.48
15 Mar 20243,336,143+126,2714.56
29 Feb 20243,209,872+541,03810.47
15 Feb 20242,668,834+127,9197.74
31 Jan 20242,540,915โˆ’53,72810.75
12 Jan 20242,594,643+48,49418.48
29 Dec 20232,546,149โˆ’56,3359.99
15 Dec 20232,602,484โˆ’16,5698.57
30 Nov 20232,619,053+154,51810.59
15 Nov 20232,464,535โˆ’116,06811.11
31 Oct 20232,580,603+35,64814.07
13 Oct 20232,544,955+45,05318.00
29 Sep 20232,499,902โˆ’87,27712.95
15 Sep 20232,587,179+58,0688.69
31 Aug 20232,529,111โˆ’166,75216.10
15 Aug 20232,695,863โˆ’93,10313.12
31 Jul 20232,788,966+66,92410.64
14 Jul 20232,722,042โˆ’105,0787.42
30 Jun 20232,827,120โˆ’16,80525.42
15 Jun 20232,843,925+5,20216.03
31 May 20232,838,723โˆ’60,05629.28
15 May 20232,898,779โˆ’38,39519.01
28 Apr 20232,937,174+49,85422.00
14 Apr 20232,887,320โˆ’4,62828.50
31 Mar 20232,891,948+22,95617.66
15 Mar 20232,868,992+9,78525.13
28 Feb 20232,859,207+86,88424.42
15 Feb 20232,772,323โˆ’10,07615.59
31 Jan 20232,782,399โˆ’176,19111.52
13 Jan 20232,958,590+125,6298.38
30 Dec 20222,832,961โˆ’81,06813.66
15 Dec 20222,914,029+174,08313.80
30 Nov 20222,739,946โˆ’94,70426.71
15 Nov 20222,834,650+30,06319.47
31 Oct 20222,804,587+37,49212.68
14 Oct 20222,767,095+39,47717.43
30 Sep 20222,727,618โˆ’117,4448.35
15 Sep 20222,845,062โˆ’22,61410.12
31 Aug 20222,867,676โˆ’226,1426.34
15 Aug 20223,093,818+147,1753.42
29 Jul 20222,946,643+14,0084.06
15 Jul 20222,932,635โˆ’22,3256.88
30 Jun 20222,954,960โˆ’328,8161.66
15 Jun 20223,283,776+514,1526.84
31 May 20222,769,624โˆ’55,8298.07
13 May 20222,825,453โˆ’188,45612.09
29 Apr 20223,013,909+98,30915.26
14 Apr 20222,915,600โˆ’62,64312.70
31 Mar 20222,978,243โˆ’171,4967.33
15 Mar 20223,149,739+415,5892.03
28 Feb 20222,734,150+494,7993.88
15 Feb 20222,239,351โˆ’360,7016.27
31 Jan 20222,600,052โˆ’246,8424.52
14 Jan 20222,846,894โˆ’235,2785.14
31 Dec 20213,082,172+30,7842.36
15 Dec 20213,051,388+519,6442.36
30 Nov 20212,531,744+70,0111.85
15 Nov 20212,461,733โˆ’576,9152.24
29 Oct 20213,038,648+340,9082.22
15 Oct 20212,697,740โˆ’771,1821.87
30 Sep 20213,468,922+493,4261.08
15 Sep 20212,975,496โˆ’644,1732.97
31 Aug 20213,619,669โˆ’123,5181.79
13 Aug 20213,743,187โˆ’516,5894.48
30 Jul 20214,259,776โˆ’553,3944.33
15 Jul 20214,813,170+425,6121.00
30 Jun 20214,387,558+557,8953.05
15 Jun 20213,829,663สณโˆ’148,3101.99
28 May 20213,977,973+320,0833.66
14 May 20213,657,890โˆ’426,4222.15
30 Apr 20214,084,312โˆ’295,5102.15
15 Apr 20214,379,822+477,1872.63
31 Mar 20213,902,635โˆ’230,4261.49
15 Mar 20214,133,061+534,7491.00
26 Feb 20213,598,312โˆ’428,9571.00
12 Feb 20214,027,269+658,7761.00
29 Jan 20213,368,493+1,630,5591.00
15 Jan 20211,737,934โˆ’112,3881.00
31 Dec 20201,850,322+398,9151.00
15 Dec 20201,451,407โˆ’514,5721.00
30 Nov 20201,965,979+1,143,1961.00
13 Nov 2020822,783โˆ’758,2281.00
30 Oct 20201,581,011โˆ’665,1731.00
15 Oct 20202,246,184+1,936,2581.00
30 Sep 2020309,926+206,5061.00
15 Sep 2020103,420โˆ’194,8461.00
31 Aug 2020298,266โˆ’361,7531.00
14 Aug 2020660,019+503,5701.00
31 Jul 2020156,449+118,3931.00
15 Jul 202038,056โˆ’215,8081.00
30 Jun 2020253,864+147,7931.00
15 Jun 2020106,071+15,6011.00
29 May 202090,470โˆ’68,1911.00
15 May 2020158,661โˆ’33,7651.00
30 Apr 2020192,426+4,1761.00
15 Apr 2020188,250โˆ’16,2511.00
31 Mar 2020204,501+44,1411.10
13 Mar 2020160,360โˆ’35,2351.00
28 Feb 2020195,595โˆ’6,1431.00
14 Feb 2020201,738+68,1421.19
31 Jan 2020133,596โˆ’15,7491.00
15 Jan 2020149,345โˆ’70,6031.00
31 Dec 2019219,948+38,4091.14
13 Dec 2019181,539+23,9351.00
29 Nov 2019157,604โˆ’133,0251.00
15 Nov 2019290,629+30,3341.00
31 Oct 2019260,295+157,2271.00
15 Oct 2019103,068โˆ’70,8571.49
30 Sep 2019173,925+99,8871.00
13 Sep 201974,038โˆ’115,0621.00
30 Aug 2019189,100+97,3431.00
15 Aug 201991,757โˆ’21,9901.16
31 Jul 2019113,747โˆ’49,4071.21
15 Jul 2019163,154โˆ’20,3621.00
28 Jun 2019183,516โˆ’26,6781.00
14 Jun 2019210,194+18,3881.00
31 May 2019191,806โˆ’296,8031.00
15 May 2019488,609+289,4101.00
30 Apr 2019199,199+8551.00
15 Apr 2019198,344+60,9611.00
29 Mar 2019137,383+49,0821.09
15 Mar 201988,301สณโˆ’289,1321.00
28 Feb 2019377,433โˆ’69,2111.07
15 Feb 2019446,644โˆ’19,1411.00
31 Jan 2019465,785โˆ’261,9001.72
15 Jan 2019727,685โˆ’253,5943.06
31 Dec 2018981,279โˆ’211,5473.32
14 Dec 20181,192,826โˆ’45,0493.34
30 Nov 20181,237,875โˆ’19,5126.82
15 Nov 20181,257,387โˆ’18,5269.61
31 Oct 20181,275,913โˆ’48,9637.49
15 Oct 20181,324,876โˆ’318,1474.53
28 Sep 20181,643,023+93,2973.89
14 Sep 20181,549,726+50,7537.19
31 Aug 20181,498,973+71,7586.91
15 Aug 20181,427,215โˆ’4,9264.85
31 Jul 20181,432,141โˆ’40,9444.73
13 Jul 20181,473,085+12,5167.34
29 Jun 20181,460,569+102,9951.94
15 Jun 20181,357,574โˆ’112,0003.97
31 May 20181,469,574โˆ’180,0846.37
15 May 20181,649,658โˆ’210,6155.09
30 Apr 20181,860,273โˆ’64,8566.08
13 Apr 20181,925,129โˆ’114,6723.57
29 Mar 20182,039,801+84,2601.50
15 Mar 20181,955,541โˆ’18,0753.50
28 Feb 20181,973,616โˆ’124,8594.12
15 Feb 20182,098,475+114,6803.99
31 Jan 20181,983,795โˆ’52,6351.75
12 Jan 20182,036,430+3,7553.24
29 Dec 20172,032,675โ€“2.61

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

Questions

Frequently asked questions

What is OPTT's short interest?
1,530,412 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 34,442,751 from the previous settlement.
Why is there no percentage for OPTT?
Because no defensible share count exists to divide by: an SEC filer exists but no defensible share count is available yet. The symbol maps to an SEC filer, but its share count cannot be used yet. A newly listed company needs two cover-page counts on file before the first is trusted; a split or an unexplained jump pauses publication until a fresh SEC count corroborates it; a secondary share class publishes under the company's primary line; and a foreign filer's short count is in depositary-share units. This page upgrades to a percentage automatically once a defensible count exists.
What is OPTT's days to cover?
3.02 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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