1. Key Comparison at a Glance

Let's start with the four-ETF comparison table, the core of this article. All of these are products that track the U.S. S&P 500 Index, but they differ in their specific terms. The data below is as of January 2026.

2. Total Expense Ratio vs. Total Cost — Why Are They Different?

Everyone knows fees matter when choosing an ETF. The issue is that there are two kinds of fees. They are the Total Expense Ratio (TER) and the Total Cost. If you don't understand the difference between the two, you can be misled by ETFs that advertise "the lowest fees."

What Is the Total Expense Ratio (TER)?

The total expense ratio covers the costs directly required to manage the ETF. It is the sum of the management fee, distribution fee, custody fee, and administrative fee. In simple terms, think of it as "the basic fee paid to the asset manager." This is the figure most ETF advertisements promote loudly.

What Is the Total Cost?

The total cost adds other expenses (brokerage commissions, index licensing fees, other operating costs, etc.) on top of the total expense ratio. In other words, it's the total amount that the investor actually bears. The problem is that these other expenses can vary significantly across asset managers.

As you can see in the table below, the ranking by total expense ratio is completely different from the ranking by total cost. This is exactly why you can't just look at the total expense ratio.

Do you see it? RISE has the lowest TER (0.0047%), but ranks #3 by total cost. Conversely, TIGER is #3 by TER (0.0068%) but takes #1 (0.1387%) by total cost. KODEX is #2 by TER, yet is actually the most expensive of the four by total cost.

3. TIGER U.S. S&P 500 (Mirae Asset)

Features — Largest in Korea, #1 in Trading Volume

The TIGER U.S. S&P 500 is an ETF managed by Mirae Asset Global Investments, holding the #1 AUM position (around KRW 12.6 trillion) among Korea-listed foreign ETFs. Trading volume is also overwhelmingly large, with hundreds of billions of won traded every day. This means you're highly likely to execute at your desired price when buying or selling. In other words, beginners get the most important assurance — "the ability to buy and sell anytime" (liquidity).

Pros

• Lowest total cost (0.1387%) — Of the four, the actual cost borne by investors is the smallest.
• Highest liquidity — AUM of KRW 12.6 trillion and #1 trading volume mean fast executions and a tight bid-ask spread.
• Stable tracking premium — The larger the AUM, the closer the ETF's market price trades to its actual net asset value (NAV).
• Long track record — High trust in the TIGER brand within the Korean ETF market.

Cons

• Not the cheapest by TER on the surface — At 0.0068%, its TER is higher than RISE's (0.0047%) or KODEX's (0.0062%). Based on ads alone, it may look more expensive.
• No TR (dividend reinvestment) version — If you want dividends to be automatically reinvested, you need to consider the KODEX TR.

4. KODEX U.S. S&P 500 (Samsung)

Features — Samsung Brand, Offers a TR (Dividend Reinvestment) Version

The KODEX U.S. S&P 500 is an ETF managed by Samsung Asset Management, ranking #2 with an AUM of about KRW 7 trillion. KODEX's biggest differentiator is that it has separately launched a TR (Total Return, dividend-reinvesting) version. Investors can choose between the regular KODEX U.S. S&P 500 (PR) and the KODEX U.S. S&P 500 TR.

TR vs. PR — Reinvest Dividends or Take Them as Cash?

This is one of the concepts beginners find most confusing, so let me explain it as simply as possible.

To use a simple analogy, think of PR as "a property that pays you rent," and TR as "a property where the rent is automatically reinvested." Over the long run, TR tends to deliver higher returns thanks to the compounding effect, but if you need dividend income right away, PR is the better fit.

Pros

• TR version available — The only option among the four for long-term investors who want dividends automatically reinvested.
• Samsung Asset Management brand — The trust of Korea's largest asset manager.
• High AUM (KRW 7 trillion) — Sufficient liquidity as the #2 player.

Cons

• Highest total cost (0.2281%) — Of the four, the investor burden is the greatest. About a 0.09 ppt gap vs. TIGER annually.
• Higher other expenses relative to TER — The TER is low, but hidden costs are relatively high.

5. ACE U.S. S&P 500 (Korea Investment)

Features — Korea Investment Trust Management, a Stable Middle Position

The ACE U.S. S&P 500 is an ETF managed by Korea Investment Trust Management. The brand was previously called "KINDEX" and has been rebranded to "ACE." In AUM it sits in the top 3, and while its TER is the highest of the four at 0.07%, its total cost is 0.1755%, placing it #2.

Pros

• #2 total cost (0.1755%) — The second-lowest real cost after TIGER.
• Linkage with Korea Investment & Securities — Convenient for users of Korea Investment & Securities.
• Stable management — Long operating history and an appropriate size.

Cons

• Highest TER (0.07%) — On the surface it may look the most expensive (though the total cost ranks #2).
• AUM is smaller than TIGER/KODEX — There may be some difference in liquidity.
• No TR version — No automatic dividend reinvestment.

6. RISE U.S. S&P 500 (KB)

Features — Industry-Lowest TER, an Aggressive Late Entrant's Strategy

The RISE U.S. S&P 500 is an ETF managed by KB Asset Management. The brand was previously "KBSTAR" and has been rebranded to "RISE." RISE's most eye-catching feature is its industry-lowest TER of 0.0047%. As a late entrant, it has been pursuing an aggressive pricing strategy by slashing its TER to extreme levels.

Pros

• Lowest TER (0.0047%) — The most aggressive in the fee-cut race.
• Decent total cost (0.1587%) — Ranked #3, but the gap from #1 TIGER is only about 0.02 ppt.
• KB Financial Group backing — Stable operations backed by a large financial group.

Cons

• AUM is relatively small — Much smaller than TIGER (KRW 12.6 trillion) or KODEX (KRW 7 trillion), which can be a disadvantage in volume and liquidity.
• Possible tracking-error volatility — A smaller AUM means a higher risk of the gap between the ETF's market price and its NAV widening.
• Other expenses are relatively high for the TER — Despite the lowest TER, it gets leapfrogged on the total-cost ranking.

7. What Are Currency-Hedged (H) Products?

The four ETFs compared so far are all currency-exposed (unhedged) products. That is, when the USD/KRW exchange rate rises, gains are added; when the rate falls, returns are shaved off. Each asset manager, however, also operates a separate currency-hedged product, marked with (H) at the end of its name.

How Currency Hedging Works

Currency hedging means eliminating the impact of exchange-rate movements through instruments such as forward contracts. In simple terms, only the movement of the S&P 500 index itself is reflected in returns, while the USD/KRW rate is ignored. This hedging, however, comes at a cost. Depending on the U.S.-Korea interest-rate differential, an additional 1–3% per year in hedging cost may apply.

When to Hedge and When Not to Hedge

8. Direct U.S. Investing (SPY/VOO) vs. Domestic ETFs

"Why not buy U.S.-listed SPY or VOO directly instead of a domestic ETF like TIGER or KODEX?" — We get this question a lot. To give you the conclusion upfront: if you plan to use tax-advantaged accounts (ISA, pension savings), a domestic ETF is advantageous, while for large investments in a regular taxable account, direct U.S. investing is also a good choice.

9. Total Expense Ratio Difference Simulation

You might think, "The total-cost difference is less than 0.1 ppt — how big of a deal can it really be?" But over the long run, this small cost difference turns into a sizable amount through the power of compounding. Check it yourself with the calculator below.

For example, if you invest KRW 100 million and assume a 10% annual return, the difference between a 0.14% total cost (TIGER) and 0.23% (KODEX) translates into a net-asset gap of about KRW 1.2 million or more after 20 years. The larger the amount, and the longer the horizon, the wider this gap becomes.

10. Recommendations by Account Type

Even if you're buying the same S&P 500 ETF, the taxes and benefits change completely depending on which account you use to buy it. Here's a summary of which strategy works best for each account type.

Regular Taxable Account — Prioritize Trading Convenience

In a regular brokerage account you get no tax benefits, so the key is to choose an ETF with a low total cost and high trading volume. The TIGER U.S. S&P 500 is the best fit. However, note that returns on Korea-listed foreign ETFs held in a regular taxable account are subject to dividend income tax (15.4%), and may be included in the comprehensive financial-income taxation base, so caution is required.

ISA Account — Maximize Tax Savings

If you invest in S&P 500 ETFs through an ISA (Individual Savings Account), you can receive up to KRW 2 million (KRW 4 million for the low-income type) of returns tax-free, with any excess taxed at a separate 9.9% rate. It's especially advantageous for long-term dollar-cost averaging, though note the 3-year mandatory holding period. For more on ISA accounts, see the ISA Account Investment Guide.

Pension Savings / IRP — Tax Credit + Tax Deferral

Investing in S&P 500 ETFs through pension savings or an IRP (Individual Retirement Pension) lets you enjoy two benefits at once. First, you receive an annual tax credit on contributions (up to a KRW 9 million annual cap), and second, taxes on investment returns are deferred until withdrawal. If you receive the funds as a pension after age 55, you only pay the lower pension income tax rate of 3.3–5.5%.

11. Cautions

Frequently Asked Questions

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