SWRD vs IWDA: Which UCITS ETF Should Indian Investors Buy?

SWRD is State Street Global Advisors' SPDR MSCI World UCITS ETF. As an Ireland domiciled, accumulating fund with a low 0.12% Total Expense Ratio, it is a highly efficient vehicle for capturing developed market equity returns.

IWDA is BlackRock's iShares Core MSCI World UCITS ETF and tracks the exact same index. It offers the same developed market exposure and the same accumulating structure, operating at a massive scale with approximately $69.5 billion in assets.

Investors are often confused between these two because they track the identical MSCI World Index and utilize the exact same optimized sampling strategy. Here is how they differ in fees and scale, and which one makes more sense as a core holding for your portfolio.

Table of contents

• What SWRD and IWDA Have in Common
• Where They Differ
• Which Should Indian Investors Buy?
• Already Holding One? Should You Switch?
• About Paasa

What SWRD and IWDA Have in Common

• Both track the exact same MSCI World Index, capturing nearly 1,500 large and mid-cap companies across 23 developed markets.
• Both are Ireland-domiciled, which eliminates the 40% US estate tax risk for Indian investors and provides a favorable 15% withholding tax rate on US dividends, which is handled internally at the fund level before reinvestment.
• Both are accumulating funds, meaning dividends are automatically reinvested internally on a net total return basis without creating an annual taxable event.
• Both share the same Indian tax treatment: Short-Term Capital Gains (STCG) at your applicable slab rate if sold within 24 months, and Long-Term Capital Gains (LTCG) at 12.5% if held longer.
• Both are readily available on global platforms like Interactive Brokers and Paasa.

Where They Differ

Fund Size and Liquidity

IWDA operates at a massive scale. With roughly $69.5 billion in assets compared to SWRD's $6.5 billion, and having launched a full decade earlier, the iShares fund trades with exceptionally high volume.

This translates to deeper secondary market liquidity and narrower bid-ask spreads on every purchase. If you are an active trader or a long-term investor executing large monthly Systematic Investment Plans (SIPs), a tighter spread means less friction and less money lost to market makers upon entry and exit.

TER vs Tracking Difference

The Total Expense Ratio (TER) is the headline fee you see on the fact sheet. Here, SWRD holds a distinct advantage with a 0.12% TER compared to IWDA's 0.20%. Over a multi-decade horizon, this 0.08% fee advantage compounds significantly in favor of SWRD.

However, tracking difference is what you actually gain or lose versus the index in reality. While both funds practice near full physical replication and technically list historical tracking differences between -0.01% and +0.05%, they are not identical. Because of BlackRock's massive securities lending program, IWDA sometimes generates extra revenue that allows it to post a slightly higher positive tracking difference, occasionally beating its index net-of-fees. SWRD is also highly efficient but typically hovers closer to a flat 0.00%.

Ticker Symbols and Branding

It is important to clarify a common point of confusion for investors researching BlackRock's offering. IWDA is the ticker used for the EUR and USD listings on exchanges like Euronext and the London Stock Exchange. You might also see it listed as SWDA for its GBP listing. SWRD directly competes with both, as IWDA and SWDA are the exact same fund under the hood.

Which Should Indian Investors Buy?

For the vast majority of long-term Indian investors building a core developed market portfolio, SWRD is the mathematically superior choice. The 0.12% TER significantly undercuts legacy competitors, making it a strictly better vehicle for cost-conscious allocators who want a foundational block for their wealth.

You should pick IWDA only if you place an absolute premium on fund scale and maximum secondary market liquidity. Institutional traders or those executing massive single transactions might appreciate the slightly narrower bid-ask spreads that come with a nearly $70 billion fund.

Ultimately, do not overthink it. Both are top-tier vehicles for developed market equity exposure. Just remember that neither includes emerging markets, so you will need to pair either ETF with a supplementary emerging markets fund to achieve true total global equity coverage.

Already Holding One? Should You Switch?

If you already hold IWDA, do not sell it just to switch to SWRD to save on the expense ratio. Selling your shares triggers a capital gains event in India. If you have held the ETF for less than 24 months, you will pay STCG at your slab rate. If you have held it longer, you will pay LTCG at 12.5%.

The small compounding advantage you gain from SWRD's lower TER will be completely wiped out by the taxes you pay on the sale and the brokerage fees required to switch. If you want to transition to a lower-cost structure, simply leave your existing IWDA shares alone and direct all future investments into SWRD.

Building your portfolio with Ireland-domiciled UCITS ETFs is the single most tax-efficient way for Indian investors to access global markets. You can read our complete LRS guide to learn how to fund your global account seamlessly.

About Paasa

Paasa is a global investing platform built specifically for Indian residents and returning NRIs. We bridge the gap between complex global brokerages and the specific, everyday needs of Indian investors.

• Estate Tax Protection: Paasa gives you direct access to Ireland-domiciled (UCITS) ETFs, including SWRD and IWDA. This allows you to legally shield your long-term wealth from the 40% US Estate Tax.
• Seamless Funding & LRS: We handle the LRS compliance process and secure competitive FX rates, ensuring your capital reaches the global markets efficiently.
• The Compliance Advantage: We generate ready-made capital gains and Schedule FA tax reports tailored for the Indian tax system, so you can focus entirely on growing your portfolio instead of managing spreadsheets.