The Brambles decision: a turning point for shareholder class actions in Australia
On 10 April 2026, the Federal Court handed down judgment in Southernwood v Brambles Ltd
(No 3) [2026] FCA 418. After eight years of litigation and a trial that was conducted from 8
August to 27 October 2022, Justice Murphy found for the applicants on liability, causation and
loss. Until this decision, no shareholder class action in Australia had succeeded at judgment
after a contested trial. Every previous case had either settled, failed on liability, or more often,
fallen at the causation and loss hurdle.
Background
The class action was brought against Brambles Limited (ASX: BXB) – a global company
focused on pallets and logistics services – on behalf of all shareholders who acquired Brambles
shares between 18 August 2016 and 17 February 2017.
In August 2016, Brambles gave the market FY17 guidance of sales growth of 7% to 9% and
Underlying Profit growth of 9% to 11%, together with medium-term FY19 targets. The
guidance was reiterated in October 2016 and again at the AGM in November 2016.
On 23 January 2017, Brambles withdrew the FY17 guidance. The share price fell around 15.8%
on the day. A month later it revised the outlook and withdrew the FY19 targets; the share price
fell a further 11.8%.
What the Court found
The FY17 guidance had a reasonable basis when made in August and when repeated in October
2016. From November 2016, however, the position had changed with Murphy J finding that it
was ‘crystal clear’ that the FY17 guidance lacked a reasonable basis. Repeated budget
shortfalls, missed monthly targets and unrealistic second-half recovery assumptions meant the
guidance could no longer be defended.
The applicants failed on the FY19 targets case on the basis that those targets were not due to
be met for almost three years. Brambles persuaded his Honour that there was still a reasonable
pathway for it to meet these targets.
His Honour also observed how tightly Brambles had calibrated its external guidance to its
aggressive internal budget — less than a 1% miss on Underlying Profit would breach it.
Aggressive budgets, the Court accepted, are part of commercial life. Setting external guidance
so close to them is not.
The causation and loss breakthrough
The most consequential part of the judgment is the applicants’ success on causation and the
quantification of loss. Earlier first-instance decisions including Myer, Worley, Insignia and
Zonia had foundered at this stage. For the first time in an Australian shareholder class action,
the Court has found that shareholders succeeded on liability, causation, and the Court
quantified loss.
Three points stand out.
First, his Honour rejected the proposition that applicants must establish “exact” economic
equivalence between the information that should have been disclosed and the corrective
disclosure. Such a standard, he said, would risk giving an issuer credit for its own misconduct.
The proper question is one of economic substance.
Second, the Court endorsed a commercially grounded, common-sense approach to causation
and loss, including by looking at how market analysts actually reacted to the bad news.
Third, market-based causation was reaffirmed as available as a matter of Australian law.
Brambles’ argument that the doctrine impermissibly “anthropomorphises” the market was
rejected.
The Court assessed share price inflation and therefore the losses of group members at $1.85
per share for shares acquired before 23 January 2017 and held after that date, and $1.57 per
share for shares acquired between 16 November and 21 December 2016.
What it means
This judgment advances the jurisprudence in shareholder class actions and provides a clear
illustration of how such claims may succeed at trial. It also articulates a practical and
commercially realistic framework for assessing causation and loss.