Are CBA Shares Still Overvalued after Double Digit Pullback?

Commonwealth Bank of Australia shares (ASX: CBA) remain significantly overvalued compared to it’s big four peers, despite a double-digit pullback over the past year. What’s worse, analysts hold a consensus “Strong Sell” rating amid concerns the premium valuation has outpaced fundamental growth prospects.

CBA shares currently trade at a market capitalisation of A$268.16 billion, having retreated 11.66% over the past 12 months. The stock commands a trailing price-to-earnings ratio of 25.93 and offers a dividend yield of 3.09%.

By comparison, Westpac trades at a P/E of 17.45 with a 4.35% yield, ANZ at 17.56 P/E with 4.8% yield, and NAB at 18.13 P/E with 4.68% yield. The valuation gap represents roughly a 40-50% earnings multiple premium for CBA over its major banking peers, even after the recent correction.

The most dramatic recent price movement occurred in mid-May 2026, when CBA suffered its sharpest one-day decline in recent history, falling 10% and erasing tens of billions in market cap. The sell-off was triggered by a disappointing trading update that revealed net interest margin compression and higher-than-expected loan-loss provisions, coupled with negative market reaction to Federal Budget announcements affecting banking sector taxation and housing policy.

Valuation Debate Continues

Price Targets

The fundamental tension in CBA’s investment case centres on the disconnect between unquestioned franchise quality and stretched equity valuation.

Based on coverage from approximately 14 analysts, the consensus rating stands at “Strong Sell,” with several brokers maintaining explicit underweight or underperform recommendations driven purely by valuation concerns rather than fundamental quality issues. Even the high target remains ~ 10% down from the current price action, making clear what had been suggested for some time, that valuations had run too hot. Analysts can also be fickle, and any material change could well see targets shift.

Major global brokers, including Morgan Stanley, have recently cut price targets across the big four Australian banks, citing a more negative outlook for house prices and concerns around tax changes affecting housing investors. In this context, CBA is viewed as most exposed given its outsized mortgage book, yet it continues to trade at the highest multiple, creating what analysts characterise as asymmetric downside risk.

The forward P/E ratio of approximately 24.3x implies markets are pricing in best-case scenarios for credit quality, margin stability, and continued market share gains.

CBA’s management argues the premium is justified by structural competitive advantages including best-in-class return on equity, superior technology infrastructure, the strongest deposit franchise, and lower risk profile than competitors. The bank has consistently demonstrated an ability to take market share in both retail and, increasingly, business banking segments where NAB has historically dominated.

However, the May 2026 trading update demonstrated how a rich valuation magnifies downside when even modest disappointments emerge.

Sector Dynamics

The broader Australian banking sector faces headwinds from multiple directions. Competition for deposits remains intense, constraining funding costs and limiting margin expansion opportunities. The highly leveraged nature of Australian households creates ongoing credit risk, particularly if unemployment rises or house prices decline materially from current levels. Then the Federal Budget included measures affecting investor behaviour in housing markets, adding uncertainty to credit growth forecasts that underpin earnings projections.

Within this environment, analysts increasingly favour ANZ and NAB as relative value plays, offering similar or only slightly weaker fundamental profiles at materially cheaper valuations and significantly higher dividend yields. Westpac occupies a middle ground, with some strategists rating it underweight alongside CBA on valuation grounds despite operational improvements.

What Next For CBA

The central question for markets is whether CBA’s premium multiple will compress further toward peer levels or stabilise at current spreads. Bears argue that even after the 11.66% pullback, the stock prices perfection in a mature, low-growth banking market where structural tailwinds are limited. Any further disappointments on margins, credit quality, or regulatory costs could trigger additional de-rating.

Bulls counter that CBA has earned its premium through decades of superior execution and that the quality gap versus peers justifies a permanent valuation spread, even if not quite as wide as recent peaks. The bank’s technology investments and digital leadership may create new revenue opportunities beyond traditional banking, supporting growth rates that peers cannot match.

Technical factors also play a role, with CBA’s weight in the ASX 200 index meaning passive flows provide some support, while its status as a perceived defensive holding attracts institutional allocations during periods of market uncertainty. With analysts firmly seeing the shares in overvalued territory and with limited near-term catalysts for multiple expansion, the risk-reward balance appears skewed toward further consolidation than a return to previous highs, even as the underlying franchise remains the strongest in Australian banking