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HowShorted

IONR short interest Nasdaq Capital Market

ioneer Ltd American Depositary. 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
152,727
vs previous settlement
−2,476 (-1.6%)
days to cover
1.64
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for IONR: 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
199
11 Sep 2026
Highest in window
843,008
31 Mar 2026
Days with a balance
97
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for ioneer Ltd American Depositary 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 843K shares.

History

Every FINRA settlement we hold for IONR, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 2026152,727−2,4761.64
31 Aug 2026155,203−5,5552.50
14 Aug 2026160,758−56,8402.17
31 Jul 2026217,598−46,7922.58
15 Jul 2026264,390−30,5714.13
30 Jun 2026294,961−162,0091.13
15 Jun 2026456,970+143,1616.59
29 May 2026313,809−9,7973.50
15 May 2026323,606+214,5254.23
30 Apr 2026109,081−121,5191.41
15 Apr 2026230,600−690,6212.23
31 Mar 2026921,221+901,7281.90
13 Mar 202619,493−11,3031.00
27 Feb 202630,796−12,6371.00
13 Feb 202643,433+17,4491.00
30 Jan 202625,984+15,8831.00
15 Jan 202610,101+5,1131.00
31 Dec 20254,988−9,8421.00
15 Dec 202514,830−25,8671.00
28 Nov 202540,697+34,5871.00
14 Nov 20256,110−27,5681.00
31 Oct 202533,678−179,1521.00
15 Oct 2025212,830+161,6741.00
30 Sep 202551,156+41,0651.00
15 Sep 202510,091+4811.00
29 Aug 20259,610−16,3611.00
15 Aug 202525,971−36,2531.36
31 Jul 202562,224+30,1081.26
15 Jul 202532,116+18,3661.00
30 Jun 202513,750+2,4761.00
13 Jun 202511,274−5501.00
30 May 202511,824−4,5851.63
15 May 202516,409−1,5813.19
30 Apr 202517,990−14,5642.81
15 Apr 202532,554+9,0951.62
31 Mar 202523,459−1,4323.09
14 Mar 202524,891−21,3582.52
28 Feb 202546,249+2,9562.96
14 Feb 202543,293+20,4462.24
31 Jan 202522,847−72,8421.00
15 Jan 202595,689+46,2413.53
31 Dec 202449,448+8,8912.01
13 Dec 202440,557−7201.86
29 Nov 202441,277−3,2982.58
15 Nov 202444,575−22,1891.38
31 Oct 202466,764+55,5721.00
15 Oct 202411,192−17,2171.00
30 Sep 202428,409+5,3681.05
13 Sep 202423,041+3,1752.06
30 Aug 202419,866+15,9832.67
15 Aug 20243,883−2,4381.00
31 Jul 20246,321+1,1491.00
15 Jul 20245,172−4,5301.00
28 Jun 20249,702+7,5281.00
14 Jun 20242,174−8,0191.00
31 May 202410,193−18,0711.05
15 May 202428,264+11,0843.55
30 Apr 202417,180−1,7611.24
15 Apr 202418,941−8161.13
28 Mar 202419,757−1,1991.82
15 Mar 202420,956−7,7141.08
29 Feb 202428,670+2,3031.92
15 Feb 202426,367−4,5302.83
31 Jan 202430,897+18,4922.22
12 Jan 202412,405−5,6221.00
29 Dec 202318,027+2,9491.15
15 Dec 202315,078+2,0831.00
30 Nov 202312,995−1081.00
15 Nov 202313,103−1,3071.26
31 Oct 202314,410−7,5231.00
13 Oct 202321,933+4,3211.60
29 Sep 202317,612−2,4901.59
15 Sep 202320,102+5,1731.00
31 Aug 202314,929+1,9651.00
15 Aug 202312,964+3,2221.00
31 Jul 20239,742+6,9271.00
14 Jul 20232,815−1,8781.00
30 Jun 20234,693−8541.00
15 Jun 20235,547−3,3661.00
31 May 20238,913−11,0881.00
15 May 202320,001+6,6321.00
28 Apr 202313,369+1,7792.39
14 Apr 202311,590−10,9872.03
31 Mar 202322,577+1,8292.23
15 Mar 202320,748+9,8691.40
28 Feb 202310,879−1,3191.00
15 Feb 202312,198+3,3281.00
31 Jan 20238,870+8,3621.00
13 Jan 2023508−2,4011.00
30 Dec 20222,909+3421.00
15 Dec 20222,567+5251.00
30 Nov 20222,042−111.00
15 Nov 20222,053−3,0771.00
31 Oct 20225,130−2,6511.21
14 Oct 20227,781+6,5931.00
30 Sep 20221,188−11,8881.00
15 Sep 202213,076+7,5941.40
31 Aug 20225,482−9,6731.00
15 Aug 202215,155+1781.00
29 Jul 202214,977+14,4861.09
15 Jul 2022491–1.00

Scroll inside the table for earlier settlements, back to 15 Jul 2022.

Questions

Frequently asked questions

What is IONR's short interest?
152,727 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 2,476 from the previous settlement.
Why is there no percentage for IONR?
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 IONR's days to cover?
1.64 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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