Equal-Weight S&P 500 ETFs for Singapore Investors (2026 Guide)

RSP, XDEW, EWSP and SPEQ compared — expense ratios, withholding tax, estate tax exposure and when equal-weight beats the standard S&P 500.

An equal-weight S&P 500 ETF gives all 500 companies roughly the same 0.2% weight, instead of letting mega-cap names like Nvidia and Apple dominate. You buy exposure to the S&P 500 Equal Weight Index through RSP (US-listed) or through LSE-listed UCITS versions like XDEW and EWSP. For Singapore investors, the LSE versions carry lower US dividend withholding tax (15% vs 30%) and no US estate tax exposure — the same trade-off you already know from CSPX vs VOO.

Not financial advice. All figures are for educational reference only. Data as at September 2026 unless noted.

Table of Contents

What Is an Equal-Weight S&P 500 ETF?

The regular S&P 500 is market-cap weighted. That means the biggest companies — think Nvidia, Apple, Microsoft — get the biggest slice of your money. Some of these mega-cap names now sit above 25% of the index combined.

An equal-weight S&P 500 ETF fixes that. It tracks the S&P 500 Equal Weight Index (EWI), which resets every constituent to roughly the same 0.2% weight (1 divided by 500) at each quarterly rebalance in February, May, August and November. A small biotech company and a trillion-dollar tech giant start each quarter with the same-sized slice.

You are not buying a different set of 500 companies. You are buying the exact same S&P 500 universe, just re-sliced so no single name or sector can dominate your returns. This gives you a natural tilt toward mid-cap and value stocks, since mega-caps get scaled down and smaller constituents get scaled up.

RSP vs XDEW vs EWSP vs SPEQ at a Glance

Source: justETF, iShares, Invesco fund factsheets, September 2026

Why Equal-Weight Is Getting Attention in 2026

For most of 2023 to 2025, cap-weighted S&P 500 funds crushed equal-weight alternatives. A handful of AI-driven mega-caps did the heavy lifting, and any fund that underweighted them fell behind.

That flipped in 2026. As at September 2026, RSP has outpaced SPY by roughly 5 percentage points year-to-date, as mega-cap tech names cooled off and gains broadened across sectors. However, S&P Dow Jones Indices data through March 2026 still showed the equal-weight index trailing the cap-weighted version by about 5% on a trailing 12-month basis. In other words, equal-weight is not a guaranteed winner — it does best when market gains are broad-based, and worst when a small group of mega-caps runs away with the market.

For a Singapore investor, the practical question is concentration risk. If your CSPX or VWRA holding already gives you 25%-plus exposure to 10 mega-cap names, an equal-weight sleeve is one way to dial that down without leaving the S&P 500 altogether.

Tax: LSE vs US-Listed Equal-Weight ETFs

This is the part that matters most if you are investing from Singapore. RSP is a US-domiciled ETF. Dividends paid to non-US holders face 30% US withholding tax (WHT). Worse, RSP counts as a US-situs asset, which exposes your estate to US estate tax if your total US assets exceed USD 60,000 at death — a threshold that catches more investors than people expect.

XDEW, EWSP and SPEQ are all domiciled in Ireland. Under the Ireland-US tax treaty, Irish-domiciled UCITS funds face only 15% WHT on US-sourced dividends. Ireland-domiciled ETFs also fall outside the scope of US estate tax, because the fund itself — not you — holds the underlying US shares.

Source: IRS, Ireland-US tax treaty provisions, September 2026

Here is what that looks like in practice. The S&P 500 Equal Weight Index yields roughly 1.5% in dividends, slightly higher than the cap-weighted index because of its value tilt toward dividend-paying mid-caps. On a SGD 50,000 XDEW holding, that is about SGD 750 in annual gross dividends. At 15% WHT, you lose SGD 112.50 a year. Hold the same amount in RSP at 30% WHT, and you lose SGD 225 a year — double the drag, on top of a slightly higher 0.20% TER and the estate tax exposure RSP carries that XDEW does not.

Also note: XDEW and EWSP are accumulating, so dividends are reinvested inside the fund automatically and there is no dividend tax event in Singapore either way. RSP and SPEQ’s distributing share classes pay cash dividends, which you would need to manually reinvest.

Equal-Weight vs Cap-Weighted: The Performance Trade-Off

Equal-weight is not a free lunch. You are trading concentration risk for a different risk: a stronger tilt toward mid-caps and value stocks, and a fund that structurally underweights the mega-cap winners when they are the ones driving the market.

Here’s the honest picture as at September 2026: RSP beat SPY by around 5 percentage points year-to-date, as tech concentration unwound and market gains broadened. But looking back over the trailing 12 months, the equal-weight index was still down roughly 5% versus the cap-weighted version, according to S&P Dow Jones Indices data through March 2026. Whichever period you pick tells a different story — which is exactly why this should be a long-term structural bet on diversification, not a short-term trade based on last quarter’s numbers.

How to Buy Equal-Weight S&P 500 ETFs in Singapore

You buy XDEW, EWSP or SPEQ the same way you would buy VWRA or IWDA — through a broker that gives you LSE access.

Interactive Brokers (IBKR): fund your account, search the ticker (XDEW, EWSP or SPEQ), select the London Stock Exchange as the listing venue, and place your order in GBP or USD depending on the share class. IBKR is the most cost-effective option for larger, buy-and-hold portfolios thanks to its low commission structure.

Saxo Markets: similar process — search the ticker, confirm you are selecting the LSE-listed UCITS version (not the US-listed RSP), and place your order. Saxo’s platform fee applies on top of commission.

Syfe Brokerage: if you prefer a simpler mobile-first interface with no separate custody fees, Syfe Brokerage supports LSE-listed ETFs and is a reasonable starting point for beginners building a first equal-weight position. See the Syfe referral code and sign-up bonus for current promotions.

FSMOne: also offers LSE access and is worth comparing on FX spread and custody fees before you commit — check the FSMOne referral code page for current terms.

Whichever broker you use, double-check you are buying the Ireland-domiciled UCITS ticker on the LSE, not the US-listed RSP on NYSE Arca — the ticker symbols are different but it is an easy mix-up if you are searching by name.

Who Should Buy an Equal-Weight ETF?

An equal-weight S&P 500 ETF makes sense if:

You already hold a large-cap growth-heavy portfolio (CSPX, VOO, or individual mega-cap tech stocks) and want to reduce concentration risk without abandoning US equities. You believe market leadership will broaden beyond the current handful of AI-driven mega-caps. You are investing for the long term and can tolerate multi-year stretches of underperformance versus the standard S&P 500.

Consider sticking with a standard cap-weighted S&P 500 ETF if:

You want the simplest, lowest-cost core holding — CSPX still carries a lower 0.07% TER than any equal-weight alternative. You are not concerned about mega-cap concentration, or you already diversify through a separate Singapore REIT ETF or global small-cap sleeve. You want to keep your portfolio to the fewest possible moving parts.

Equal-weight ETFs are not eligible for CPF Ordinary Account investment (LSE-listed ETFs generally are not CPFIS-approved), but they are SRS-compatible through brokers that support SRS funding for overseas ETFs. If you are building a broader retirement plan around this, the Singapore retirement calculator and our CPF investment strategy guide are useful next reads. For a wider view of the mega-cap concentration problem across your holdings, see our guide to factor investing ETFs, which covers value, quality and low-volatility tilts alongside equal-weight.

Frequently Asked Questions

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