Key Points

• Passive investing generally refers to a buy-and-hold portfolio strategy that is suitable for long-term investment cycles with very infrequent market transactions.
• Index investing is probably the most common form of passive investing, where investors aim to replicate and hold a broad market index.
• Passive investing is generally less expensive and less complex over the medium to long term than actively managed portfolios, and often produces superior after-tax returns.

Understanding passive investing

Passive investing methods are designed to avoid the fees and limited performance that may arise from frequent trading. The goal of passive investing is to build wealth over time. Known as a buy and hold strategy, passive investing means buying securities and holding them for the long term. Unlike active traders, passive investors do not seek to profit from short-term price fluctuations or market timing. The basic assumption of passive investing strategies is that the market will generate positive returns over the long term.

Passive managers generally believe that trying to beat the market is difficult, so they strive to align with market or industry performance. Passive investing seeks to replicate the performance of the market by constructing a well-diversified portfolio of individual stocks that would require extensive research if studied individually. The introduction of index funds in the 1970s made it easier to obtain returns consistent with the market. By the 1990s, exchange-traded funds (ETFs) that tracked major indexes, such as the SPDR S&P 500 ETF (SPY), further simplified the process, allowing investors to trade index funds like stocks.

Advantages and disadvantages of passive investing

Maintaining a well-diversified portfolio is crucial to successful investing, and diversification through index investing is possible. Index funds broadly diversify risk by holding representative securities in a target benchmark. Index funds track a target benchmark or index rather than looking for winners. Therefore, they avoid the situation of constantly buying and selling securities. As a result, their fees and operating costs are typically lower than actively managed funds.

Index funds are a simple way to invest and are easy to understand because they seek to track an index. There is no need to select and monitor individual fund managers, or choose among investment themes.

However, passive investing is also subject to overall market risk. Index funds track the entire market, so when the overall stock market or bond prices fall, the index fund falls as well. Another risk is a lack of flexibility. Index fund managers generally cannot use defensive measures such as reducing stock positions, even if the manager believes the stock price will fall. Passively managed index funds face performance constraints because they are designed to provide returns that are closely tied to their benchmark index, rather than pursuing excess returns. They are less likely to beat index returns and often have slightly lower returns due to operating costs.

Some of the key advantages of passive investing include:

• Extremely low fees: no one picks stocks, so regulatory costs are greatly reduced. Passive funds follow an index that serves as a benchmark.
• Transparency: It is always clear which assets are in an index fund.
• Tax efficiency: Their buy-and-hold strategies typically do not result in large annual capital gains taxes.
• Simplicity: Owning an index or group of indices is far easier to implement and understand than a dynamic strategy that requires constant research and adjustments.

Proponents of active investing might say that passive strategies suffer from the following weaknesses:

• Too restrictive: Passive funds are limited to a specific index or a preset set of investments with little variation. Therefore, no matter what happens in the market, investors are locked into these positions.
• Potential returns are smaller: By definition, passive funds can almost never beat the market, even in volatile times, because their core holdings are locked in to tracking the market. Sometimes, passive funds may slightly beat the market, but unless the market itself is booming, it will never deliver the high returns that active managers crave. Active managers can deliver greater returns (see below), although these returns come with greater risk.

TIP: Fund fees vary. Actively managed funds typically have higher operating costs than passively managed funds, but it's always important to check fees before choosing a fund to invest in.

To compare the pros and cons of passive investing, active investing also has its pros and cons to consider:

• Flexibility: Active investors do not have to follow a specific index. They can buy stocks that they consider to be their “pick of the bunch.”
• Hedging: Active managers can use various techniques, such as short selling or put options, to hedge risk and exit a specific stock or industry if the risk becomes too great. Passive investors are forced to hold stocks included in the index regardless of their performance. -Tax management: Although this strategy may trigger capital gains taxes, advisors can tailor tax management strategies to the needs of individual investors, such as offsetting taxes on big winners by selling losing investments.

But active strategies also have these shortcomings:

• Fees are very high: Since all those active buying and selling trigger transaction costs, the fees are higher, not to mention you're also paying the salaries of a team of analysts who research stock picks. Over decades of investing, all these fees can eat into returns. In 2020, the average fee for actively managed mutual funds was 0.71%, while the average fee for passively managed funds was 0.06%.
• Active risk: Active managers are free to buy any investment they believe will provide a high return, which is good when analysts are right but bad when they are wrong.
• Poor track record: Data shows that few actively managed portfolios can beat their passive benchmarks, especially when taxes and fees are taken into account. In fact, only a handful of actively managed mutual funds outperform their benchmark indexes over medium to long-term time frames.

How to start passive investing?

Buying index funds is a common passive investing strategy. Index funds are designed to mirror the activity of a market index, such as the Russell 2000 Index. Index funds aim to maximize returns over the long term by reducing trading frequency.

Exchange-traded funds (ETFs) are another common choice for passive investors. ETFs can be passively or actively managed. Index-based ETFs, like index funds, track the activity of an index of securities.

What are the fees associated with passive investing?

Passive investing is generally cheaper than active investing because fund managers don't pick stocks or bonds. Passive funds allow a specific index to guide the traded securities, which means there are no additional research analyst fees.

Even passively managed funds charge fees. When deciding which fund to invest in, it's important to investigate the associated fees.

What are the return expectations for passive investing versus active investing?

Active investing aims to drive returns through frequent trading, but these returns are reduced by the fees associated with professional management and frequent buying and selling. Research shows that few actively managed funds can provide investors with benchmark-beating returns over an extended period of time.

Passive investing aims to achieve strong returns in the long term by minimizing the frequency of buying and selling, but is unlikely to beat the market and achieve outsized returns in the short term. Active investing can deliver greater returns, but it also comes with higher risks than passive investing.

Conclusion

Passive investing has advantages and disadvantages compared to active investing. This strategy may result in fewer fees and greater tax efficiency, but short-term returns may be limited and typically less than those from active investing. Passive investing is an attractive option for investors looking to achieve lower-risk returns over a longer period of time.

About TheQuantHackers

TheQuantHackers is a cutting-edge community composed of a group of people from the world's top universities and quantitative finance practitioners, dedicated to exploring the infinite possibilities in the fields of artificial intelligence (AI) and quantification (Quant). Our team members come from world-renowned universities such as the University of Cambridge, Oxford University, Harvard University, ETH Zurich, Peking University, and the University of Science and Technology of China. Our external consultants come from first-class companies such as Microsoft, HSBC, Citadel, Man Group, Citi, Jump Trading, and top domestic private equity companies.