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ADUR short interest Nasdaq Capital Market

Aduro Clean 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
3,066,173
vs previous settlement
+233,264 (+8.2%)
days to cover
9.28
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for ADUR: 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
83
11 Sep 2026
Highest in window
67,322
13 Feb 2026
Days with a balance
186
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Aduro Clean 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 67K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20263,066,173+233,2649.28
31 Aug 20262,832,909โˆ’22,1017.11
14 Aug 20262,855,010โˆ’21,8756.85
31 Jul 20262,876,885+495,4554.45
15 Jul 20262,381,430+261,7574.42
30 Jun 20262,119,673+97,5984.43
15 Jun 20262,022,075โˆ’187,4972.69
29 May 20262,209,572+49,9545.14
15 May 20262,159,618+98,3355.16
30 Apr 20262,061,283+44,4716.61
15 Apr 20262,016,812+54,9518.68
31 Mar 20261,961,861+40,5976.86
13 Mar 20261,921,264โˆ’32,2247.20
27 Feb 20261,953,488+100,42610.67
13 Feb 20261,853,062+59,1124.61
30 Jan 20261,793,950โˆ’59,8083.26
15 Jan 20261,853,758+595,8492.43
31 Dec 20251,257,909+170,7852.33
15 Dec 20251,087,124+151,4923.44
28 Nov 2025935,632+110,0932.20
14 Nov 2025825,539+36,4803.55
31 Oct 2025789,059โˆ’21,5503.59
15 Oct 2025810,609สณโˆ’97,7502.78
30 Sep 2025908,359+139,2083.51
15 Sep 2025769,151+92,0163.50
29 Aug 2025677,135+63,2753.68
15 Aug 2025613,860+66,0672.52
31 Jul 2025547,793+87,7402.21
15 Jul 2025460,053+137,5701.57
30 Jun 2025322,483โˆ’45,6061.00
13 Jun 2025368,089+121,8771.00
30 May 2025246,212+123,5421.04
15 May 2025122,670+23,5171.00
30 Apr 202599,153โˆ’5,7121.46
15 Apr 2025104,865+30,8521.02
31 Mar 202574,013โˆ’4,7631.66
14 Mar 202578,776+8,0521.39
28 Feb 202570,724+45,4571.12
14 Feb 202525,267โˆ’1,5671.00
31 Jan 202526,834+5451.00
15 Jan 202526,289โˆ’31,8591.00
31 Dec 202458,148+1,5341.00
13 Dec 202456,614โˆ’12,3441.00
29 Nov 202468,958+3,4171.00
15 Nov 202465,541โ€“1.00

Scroll inside the table for earlier settlements, back to 15 Nov 2024.

Questions

Frequently asked questions

What is ADUR's short interest?
3,066,173 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 233,264 from the previous settlement.
Why is there no percentage for ADUR?
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 ADUR's days to cover?
9.28 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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