Summary

The Straits Times Index (STI) is made up of the top 30 companies listed on the SGX across different sectors
As the benchmark for the Singapore stock market, the STI has recorded an annualised return of 5.3% in the past 10 years
The SPDR and Nikko AM STI ETFs have generated broadly similar returns in the past 12 months.

What is the STI?

Many new investors often wonder what is a good Singapore ETF to buy. You can start by understanding what the Straits Times Index (STI) is.

The STI comprises the 30 largest and top-performing companies listed on the Singapore Exchange (SGX).

Just like how the S&P 500 index is used as a benchmark for the US stock market, the STI is widely used as a benchmark for the Singapore stock market.

If you want to invest in the STI, you can do so through index-related products such as the STI ETF.

What are the constituents of the STI?

The top 30 companies listed on the SGX range across various industries.

The financial sector makes up a sizeable portion of the index. This is because the big three banks in Singapore (DBS, UOB, and OCBC) constitute the highest weightage in the STI, comprising close to 50% of the index.

The constituents of the STI are:

Stock	Index Weight (%)
DBS Group Holdings (D05)	21.57
Overseas-China Banking (O39)	15.64
United Overseas Bank (U11)	11.75
Singapore Telecommunications (Z74)	6.28
Keppel Corporation (BN4)	3.36
CapitaLand Integrated Commercial Trust (C38U)	3.32
Jardine Matheson Holdings (J36)	3.27
CapitaLand Ascendas REIT (A17U)	3.26
Singapore Airlines (C6L)	2.91
Singapore Exchange (S68)	2.49
Wilmar International Limited (F34)	2.36
CapitaLand Investment (9CI)	2.22
Singapore Technologies Engineering (S63)	2.02
Genting Singapore (G13)	1.69
Sembcorp Industries (U96)	1.62
Yangzijiang Shipbuilding (BS6)	1.6
Mapletree Logistics Trust (M44U)	1.59
Mapletree Industrial Trust (ME8U)	1.52
Hongkong Land Holdings (H78)	1.5
Thai Beverage (Y92)	1.32
Venture Corp (V03)	1.23
Seatrium (5E2)	1.06
Frasers Logistics & Commercial Trust (BUOU)	1
Mapletree Pan Asia Commercial Trust (N2IU)	0.97
UOL Group (U14)	0.94
City Developments (C09)	0.9
Jardine Cycle & Carriage (C07)	0.79
Frasers Centrepoint Trust (J69U)	0.78
SATS (S58)	0.76
DFI Retail Group Holdings (D01)	0.29
Source: FTSE Russell as of 29 March 2024

What is the STI ETF?

The STI ETF simply tracks the underlying performance of the STI.

If you buy the SPDR STI ETF, for example, you’re essentially investing in an exchange-traded fund (ETF) that tracks the performance of the index.

This exposes you to a variety of stocks across different sectors and industries in Singapore.

Should I buy the SPDR STI ETF or Nikko AM STI ETF?

There are two ETFs that track the performance of the STI.

The SPDR STI ETF and the Nikko AM STI ETF provide ways to invest in the top 30 companies on the SGX.

Although both ETFs serve to track the performance of the STI, there are a few considerations to look at.

#1 - Performance

In terms of performance, both the ETFs generated a return of 15.2% in the past 12 months (as of January 2022). This is slightly below the return of the STI, which was at 15.7%. This is likely due to differences in fees and tracking errors.

Across the longer time horizon of 3 years and 5 years, the returns of the SPDR STI ETF have been higher than that of the Nikko AM STI ETF.

#2 - Total expense ratio

Both the SPDR STI ETF and the Nikko AM STI ETF charge the same total expense ratio (TER) of 0.30% per annum. The TER measures the total costs associated with the overall management and operating expenses of the ETF. This may include management fees, administrative costs, as well as distribution fees.

#3 - Tracking error

Tracking error refers to the difference between the price of the benchmark fund (in this case the two ETFs) and the index it is trying to track.

On this front, the SPDR STI ETF has a slightly lower tracking error. According to their respective fact sheets, the SPDR STI ETF has a tracking error of 0.03% while the Nikko AM STI ETF has a tracking error of 0.15%.

#4 - Track record

Both ETFs are run by established fund managers. The SPDR STI ETF is managed by State Street Global Advisors with more than US$4 trillion worth of assets. The Nikko AM STI ETF is managed by Nikko Asset Management which manages more than US$280 billion worth of assets.

As the oldest local ETF in Singapore, the SPDR STI ETF has been in existence since 2002. The Nikko AM STI ETF, on the other hand, was listed on the SGX in 2009.

What would Beansprout do?

The STI ETF offers you broad-based exposure to the Singapore market, without requiring you to pick individual stocks.

You can learn more about how the SPDR STI ETF and the Nikko AM STI ETF provide ways to invest in the top 30 companies on the SGX.

However, if you are keen to select your own stocks to purchase in the Singapore market, you can start by referring to our guide on Singapore blue chip stocks.

If you are looking to add more Singapore ETFs into your portfolio apart from the STI ETF, check out our guide on Singapore REIT ETFs, Singapore bond ETFs and Singapore Gold ETFs.

How to buy the STI ETFs?

You can buy STI ETFs through a regulated broker that offers access in the Singapore stock market, such as Tiger Brokers and Moomoo Singapore.

Check out our guide to the best online brokerage and stock trading platform in Singapore.

What other ETFs to consider?

If you prefer to invest for dividend income, find out more about the ETFs that offer exposure to Singapore REITs.

If you prefer to invest in the US market, find out more about the ETFs that track the S&P 500 index.

If you prefer to invest in a portfolio of global stocks, find out more about the ETFs that offer you exposure to both developed and emerging markets..