Exchange-Traded Funds (ETFs)

What is an ETF?

An Exchange-Traded Fund (ETF) is a type of investment fund that holds a diversified basket of securities such as stocks, bonds, or commodities. ETFs trade on stock exchanges just like regular stocks, meaning investors can buy and sell them throughout the trading day at market prices. Most ETFs passively replicate an underlying index, such as the S&P 500 or MSCI World, though actively managed ETFs also exist.

Investing in ETFs is one of the most efficient and low-cost passive investing strategies available. ETFs provide instant diversification across many securities with a single purchase, making them an ideal building block for long-term investment portfolios. They are popular with both beginner and experienced investors who follow strategies like dollar-cost averaging.

In his 1993 shareholder letter, Warren Buffett (even though he is an active investor) acknowledges the power of investing in index funds:

"By periodically investing in an index fund, for example, the know-nothing investor can actually out-perform most investment professionals."

How Do ETFs Work?

ETFs are created and managed by fund providers (such as iShares, Vanguard, or Invesco) who assemble a basket of securities that matches a specific index or investment strategy. The fund provider issues shares of the ETF, which then trade on a stock exchange.

When you buy a share of an ETF, you are buying a small piece of the entire basket of holdings. This means that with a single purchase, you gain exposure to dozens, hundreds, or even thousands of individual securities. The price of an ETF share fluctuates throughout the day based on supply, demand, and the value of the underlying holdings.

ETFs use a mechanism called "creation and redemption" involving authorized participants (large financial institutions) to keep the ETF price closely aligned with the net asset value of its holdings. This process helps minimize the tracking difference between the ETF and its benchmark index.

How to Choose an ETF

In order to choose an ETF, you first need to look at its holdings and which type of index it replicates: MSCI World, MSCI Emerging Markets, S&P 500, and so on. Your choice should align with your investment goals, risk tolerance, and desired geographic or sector exposure.

Then, when choosing between similar ETFs, here are some criteria to consider:

• Fees (TER): The lower the total expense ratio, the better. Even small differences in fees compound significantly over time, affecting your compound annual growth rate.
• Fund size: Larger funds tend to be better because they generally have lower fees and better liquidity.
• Volume: Higher trading volume means better liquidity and tighter bid-ask spreads when buying or selling.
• Tracking difference: You want the ETF to deliver a return that is very close to the index it tracks. A large tracking difference means the fund is not efficiently replicating its benchmark.
• Replication method: ETFs can use full physical replication (holding all underlying assets directly) or synthetic replication (using financial derivatives like swaps to replicate index returns).
• Income treatment: ETFs can be distributing, meaning they pay out all interest and dividends, or accumulating, meaning they automatically reinvest income back into the fund.
• Currency: ETFs can track the same index but be denominated in different currencies such as USD, EUR, or GBP.

Types of ETFs

There are several types of ETFs available to investors:

• Index ETFs: Track a broad market index like the S&P 500 or MSCI World. These are the most popular and typically have the lowest fees.
• Sector ETFs: Focus on a specific industry such as technology, healthcare, or energy.
• Bond ETFs: Hold a portfolio of bonds, providing fixed-income exposure.
• Commodity ETFs: Track the price of commodities like gold, oil, or agricultural products.
• Dividend ETFs: Focus on companies with strong dividend histories and high dividend yields.
• Thematic ETFs: Target specific investment themes like clean energy, artificial intelligence, or cybersecurity.
• Leveraged and inverse ETFs: Use financial derivatives to amplify returns or profit from market declines. These are higher risk and generally not suitable for long-term holding.

ETFs vs Individual Stocks

Investing in ETFs differs from buying individual stocks in several important ways. When you buy a single stock, your investment depends entirely on the performance of one company. With an ETF, your investment is spread across many companies, reducing the risk that any single company's poor performance will significantly harm your portfolio.

ETFs also require less research and active management than individual stock picking. Rather than analyzing financial statements, financial ratios, and intrinsic values for each company, an index ETF investor simply needs to choose an appropriate index and hold it for the long term.

However, ETFs will typically match market returns rather than exceed them. Investors who are skilled at identifying undervalued companies through value investing may achieve higher returns with individual stocks, though this requires significantly more time, skill, and risk tolerance.

Most Popular ETFs

Here are some of the largest Exchange-Traded Funds by fund size:

1. iShares Core S&P 500 UCITS ETF (Acc)
2. iShares Core MSCI World UCITS ETF USD (Acc)
3. Vanguard S&P 500 UCITS ETF
4. iShares Core MSCI Emerging Markets IMI UCITS ETF (Acc)
5. iShares Core S&P 500 UCITS ETF USD (Dist)
6. Xetra-Gold
7. iShares Physical Gold ETC
8. iShares Core FTSE 100 UCITS ETF (Dist)
9. Invesco Physical Gold A

Advantages of Investing in ETFs

• Diversification: A single ETF can provide exposure to hundreds or thousands of securities, spreading risk across the portfolio.
• Low cost: ETFs typically have much lower expense ratios than actively managed mutual funds.
• Liquidity: ETFs trade on stock exchanges throughout the day, offering flexibility to buy and sell at any time during market hours.
• Transparency: Most ETFs publish their holdings daily, so investors know exactly what they own.
• Tax efficiency: Due to their structure, ETFs are generally more tax-efficient than mutual funds.
• Accessibility: ETFs can be purchased through any brokerage account with no minimum investment beyond the price of one share.

Risks of ETFs

While ETFs are generally considered lower risk than individual stocks, they are not without risk:

• Market risk: If the broader market or the specific sector an ETF tracks declines, the ETF will also lose value.
• Tracking error: Some ETFs may not perfectly replicate their benchmark index, leading to slightly different returns.
• Liquidity risk: Niche or small ETFs may have low trading volume, resulting in wider bid-ask spreads and difficulty selling at desired prices.
• Currency risk: For ETFs that hold foreign assets, fluctuations in exchange rates can impact returns.
• Closure risk: ETFs with very low assets under management may be closed by the provider, forcing investors to sell their holdings.

Understanding these risks and building a diversified portfolio across multiple asset classes is the best way to protect long-term returns on investment.