Are Simple Mistakes The Only Reason You’re Underperforming Buffett And Munger?

Could reducing obvious errors boost your investment returns?

Every investor makes mistakes. It is impossible to buy a stock when it is at its lowest ebb and go on to sell it at its highest point every time. In fact, it is estimated that even the very best investors are wrong around 40% of the time.

However, investors such as Warren Buffett and Charlie Munger, who have made $billions in recent decades, generally avoid some of the more obvious errors which many private investors make. For example, they do not rush at any time, have significant amounts of patience, and are prepared to forego what prove to be golden opportunities if they are unsure about a potential purchase.

Moreover, if they do make a mistake, they act swiftly and decisively to fix it. Could doing likewise improve your portfolio returns?

close-up photo of investor Warren Buffett

Image source: The Motley Fool

Simple errors

Of course, Buffett and Munger are experienced investors. They have seen more booms and busts than the vast majority of private investors, and so have had time to refine their investing methodologies.

However, both of them have been highly successful for a prolonged time period. One reason for this is that they have long avoided the obvious mistakes which investors make. For example, they are prepared to wait for a number of years in order for the right investing opportunities to come to them. In other words, while a bull market is ongoing, they are less likely to make significant purchases. Similarly, they often become increasingly active during challenges for the stock market.

In contrast, private investors often become increasingly confident during bull markets. With their portfolios likely in profit, they may believe in their own ability more than they perhaps should, and this can lead to relatively poor results in the long run.

Furthermore, Buffett and Munger do not seek to crystallise a profit unless there is a better opportunity elsewhere. This leads to longer holding periods, which generally mean that there is more time for a company’s management to deliver on their strategy. Private investors, meanwhile, often look to trade stocks, which increases transaction costs and can mean their portfolios lack stability.

Decision-making

As mentioned, every investor makes mistakes at times in their career. However, Buffett and Munger seem to be relatively unemotional when they make an error. Rather than worry about it and allow it to cloud their future judgement, they seek to fix it as quickly as possible. At times, this means selling stocks at a loss. While painful, the opportunity cost of investing elsewhere could be significant, and the logical move may be to sell up and move on.

Private investors, though, often wait for a stock to move back into profit versus the price which they paid. This can lead to not only greater losses and a lack of improved returns elsewhere, but also increased worry when in a loss-making position.

Takeaway

By focusing on simple, yet common, mistakes such as holding period, patience and how to deal with errors of judgement, an investor may be able to improve their portfolio performance. Given the recent fall in stock prices, now could be a good time to focus on a number of high-quality companies which trade on lower valuations.

More on Investing

A solar cell panel generates power in a country mountain landscape.
Energy Stocks

Here’s How Many Shares of Capital Power You Should Own to Get $1,000 in Dividends

Discover the potential of Capital Power as a leading dividend stock on the TSX for reliable returns and future growth.

Read more »

dividends grow over time
Investing

2 Growth Stocks I Expect to Surge Well Into This Year and Beyond

These TSX stocks will likely deliver solid returns as they are benefiting from strong demand for their products, technology, and…

Read more »

Happy golf player walks the course
Dividend Stocks

How a TFSA Can Generate $4,360 in Annual Tax-Free Passive Income

This strategy can boost yield while reducing portfolio risk.

Read more »

Pile of Canadian dollar bills in various denominations
Dividend Stocks

Build a Passive-Income Portfolio With Just $25,000

Turn $25,000 into monthly passive income! Discover how a single TSX ETF, a TFSA, and a DRIP can build a…

Read more »

athlete ties shoes before starting to exercise
Dividend Stocks

Chasing Passive Income? These 2 Canadian Dividend Stocks Yield 9% and Can Back It Up

High yields look scary until you separate “cash flow coverage” from “headline yield,” and these two TSX names show both…

Read more »

a sign flashes global stock data
Dividend Stocks

My 3 Favourite TSX Stocks to Buy Right This Moment

Protect your investment capital by adding these three TSX stocks to your self-directed investment portfolio.

Read more »

A glass jar resting on its side with Canadian banknotes and change inside.
Dividend Stocks

How to Use Your TFSA to Double Your Annual Contribution

Down more than 25% from all-time highs, this TSX dividend stock is a top buy for your TFSA in 2026.

Read more »

Nurse uses stethoscope to listen to a girl's heartbeat
Dividend Stocks

How to Structure a $50,000 TFSA for Practically Constant Income

Given their solid fundamentals, stronger balance sheets, and healthy growth prospects, these two REITs would be excellent additions to your…

Read more »