National Australia Bank (NAB) Short Interest
National Australia Bank (ASX:NAB) had 1.28% of shares reported as short positions as of 24 Aug 2026, representing 39,832,584 shares. National Australia Bank operates in the Banks industry. Source: ASIC short position report (T+4 delay).
Source: official ASIC short position report, T+4 delay. Methodology · Disclaimer — not financial advice.

National Australia Bank
National Australia Bank (NAB) is one of Australia’s major banks, generating earnings primarily from net interest income and fees across consumer banking, business and private banking, and institutional banking. It holds a leading position in Australian business banking and has a large domestic deposit base that supports funding and margins. NAB differentiates through scale, a broad distribution network and digital channels, and deep relationships with SMEs and corporate clients across Australia and New Zealand.
Short position
National Australia Bank (ASX:NAB) has 1.28% of its shares on issue reported as short positions as of 24 Aug 2026, or about 39,832,584 shares. Over the past 30 days that figure has risen 0.09 percentage points, and over 90 days it has fallen 0.35 percentage points. Its highest recorded short interest was 1.83% in June 2026. NAB is classified in the Banks industry. All figures come from official ASIC short position reports, published with a four trading-day (T+4) delay.
Operations exposure
New South WalesSignificant operations exposure (estimate)
Basis: Large customer base and lending
VictoriaSignificant operations exposure (estimate)
Basis: Major retail and business banking base
QueenslandSome operations exposure (estimate)
Basis: Retail banking and mortgages
Western AustraliaSome operations exposure (estimate)
Basis: Business banking and resources exposure
Coarse bands are AI estimates based on public company information.
Weekly context: The 10 most shorted ASX stocks — Week 35, 2026.
Price & short interest
Toggle series, zoom, and compare · ASIC daily, T+4NAB intelligence dossier
Public-source evidence for this company, with industry drill-up links.
- Tax paid and taxable income records
- Government contracts and public money
- Emissions and trade exposure
- Political donations and lobbying links
Short interest history & FAQ
NAB Short Interest History
- 30-day change
- +0.09pp
- 90-day change
- -0.35pp
- 1-year change
- +0.69pp
- All-time high
- 1.83% (June 2026)
- All-time low
- 0.21% (January 2014)
Is NAB heavily shorted?
Not especially: 1.28% short interest is modest by ASX standards, ranking #202 of 807 ASX securities with reported short positions. ASIC requires positions of 0.01% of issued capital or $100,000 (whichever is less) to be reported.
How has NAB's short interest changed recently?
Over the past 30 days National Australia Bank's short interest has been broadly stable, and over 90 days it has been broadly stable. The current level is 1.28% of shares on issue.
What is the highest NAB's short interest has been?
Since 2010, National Australia Bank's short interest peaked at 1.83% in June 2026 and bottomed at 0.21% in January 2014.
Where does this data come from?
All figures are sourced from daily ASIC short position reports, published with a four trading-day (T+4) delay. Shorted aggregates the full history since 2010. See our methodology.
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