Yahoo Finance republishes warning on 'action bias' and the cost of daily portfolio checks
A recent article, originally published by The Motley Fool and syndicated by Yahoo Finance, argues that frequent monitoring triggers psychological biases that undermine long-term wealth creation.
A financial article published by Yahoo Finance, originally from The Motley Fool, advises investors against the habit of checking their portfolios on a daily basis. The piece argues that frequent monitoring triggers a psychological phenomenon known as "action bias," which leads to unnecessary trading that ultimately undermines long-term investment returns.
The article defines action bias as the subconscious urge to take action when doing nothing is a viable and often superior option. This tendency is exacerbated by the modern financial landscape, where the ease and low cost of trading stocks make it tempting for investors to react to short-term volatility rather than maintaining a disciplined strategy.
Citing data from mutual fund company Hartford, the article highlights the statistical risk of attempting to time the market. Over the past 20 years, more than 40 per cent of the stock market's biggest daily gains occurred in the middle of a bear market, while more than one-third of the best days took shape in the first two months of a new bull market.
The data underscores the severe impact of missing these critical periods. According to Hartford, being out of the market during just the best 10 days of the past 30 years would have cut total returns in half. The article notes that no one can consistently predict when these high-growth days will occur, making the long-term risk of staying on the sidelines greater than the temporary risk of riding out turbulent periods.
Warren Buffett’s philosophy is referenced to support the argument for patience, with the investor famously describing the stock market as a device for transferring money from the impatient to the patient. The article also points out that excessive tinkering is a primary reason why most hedge funds underperform the broader market.
To mitigate stress and improve financial outcomes, the piece recommends a passive investment strategy, such as using index funds. This approach helps investors avoid the psychological trap of unnecessary action, allowing them to capture market returns without the burden of constant monitoring and trading.
The article includes promotional content for the "Stock Advisor" service, citing hypothetical returns for Nvidia, Apple, and Netflix based on past "Double Down" recommendations. These examples are used to illustrate the potential benefits of long-term holding, although the piece maintains that the core advice remains focused on reducing trading frequency.
