When Warren Buffett talks, investors listen. And one of the key ideas the legendary investor encourages is the concept of economic moats.
This is a term used to describe a company's durable competitive advantage that protects its profits from rivals. Buffett once said:
The key to investing is not assessing how much an industry is going to affect society… but rather determining the competitive advantage of any given company and, above all, the durability of that advantage.
In other words, it is not about chasing trends—it is about finding fairly valued ASX shares with strong, defendable business models that can thrive through economic cycles. And the good news is, there are plenty of those right here on the Australian share market.
Let's explore a few ASX shares that appear to have wide economic moats.
CSL Ltd (ASX: CSL)
CSL is one of the clearest examples of a wide moat stock on the ASX. This biotech giant is a global leader in plasma therapies and influenza vaccines, backed by decades of research, global infrastructure, and a strong pipeline of innovative treatments.
Its moat stems from its scale, manufacturing capabilities, and regulatory barriers to entry. Few companies can compete with CSL's vertically integrated model—and that's reflected in its consistent profitability and global reach.
REA Group Ltd (ASX: REA)
Another ASX share that has a wide moat is REA Group. It is the company behind realestate.com.au, which has a near-monopoly in Australian digital real estate listings.
It benefits from the network effect—buyers and sellers go where the most listings are, and agents advertise where the most eyeballs are. This virtuous loop keeps REA Group at the top of the market, even when housing volumes dip.
With pricing power and a sticky user base, REA Group has built an impressive moat around its digital real estate empire.
Commonwealth Bank of Australia (ASX: CBA)
The largest of the big four banks, CBA's moat lies in its brand strength, customer base, and technological leadership.
Despite competition from fintechs and other banks, CBA's massive deposit base and long-standing customer relationships make it incredibly difficult to displace. Its early investment in digital banking has also paid off, giving it a loyal following and operational efficiency.
However, given its sky-high valuation, it is unlikely that CBA would pass the sniff test for Warren Buffett right now despite its incredible moat.
VanEck Morningstar Wide Moat ETF (ASX: MOAT)
If picking individual companies sounds daunting, there's an ASX ETF that does the hard work for you.
The VanEck Morningstar Wide Moat ETF gives investors exposure to a portfolio of US-listed companies that analysts believe have sustainable competitive advantages and are undervalued. Think of it as a Buffett-style portfolio in a single trade.
Foolish takeaway
Warren Buffett's track record speaks for itself—and his emphasis on wide economic moats is a proven strategy for long-term success.
Whether you prefer stock-picking or diversified ETFs like the VanEck Morningstar Wide Moat ETF, focusing on ASX shares with enduring moats could be the smartest investment decision you make.
