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CBA vs NAB — ASX Short Interest Comparison

Side-by-side comparison of short positions for COMMONWEALTH BANK. ORDINARY (ASX:CBA) and NATIONAL AUST. BANK ORDINARY (ASX:NAB), based on official ASIC short position reports as of 30 May 2026.

CBA is more heavily shorted, with 1.71% of shares reported as short positions against 1.54% for NAB — a gap of 0.18 percentage points.

CBA

More shorted

COMMONWEALTH BANK. ORDINARY

Short interest
1.71%
Reported positions
28,666,970
Industry
Banks

NAB

NATIONAL AUST. BANK ORDINARY

Short interest
1.54%
Reported positions
47,166,920
Industry
Banks

Both CBA and NAB operate in the Banks industry — industry-level short positioning may reflect broader sector sentiment rather than stock-specific views.

Source: official ASIC short position reports (T+4 delay). Methodology · Disclaimer — not financial advice.