QQQ is the Invesco QQQ Trust. Tracking the Nasdaq-100 Index, it is a USA-domiciled Unit Investment Trust with roughly $450 billion in assets, making it one of the oldest and most liquid vehicles available for capturing large-cap US growth and technology equities.
CSPX is BlackRock's iShares Core S&P 500 UCITS ETF. As an Ireland-domiciled, accumulating fund with over $142 billion in assets, it is the largest and most established S&P 500 ETF available to Indian investors looking for tax-efficient US market exposure.
Indian investors are often confused between these two because both serve as highly liquid, primary vehicles for US large-cap market exposure. Here is exactly how and where they differ under the hood, and which one makes the most sense for your portfolio.
| Feature | QQQ | CSPX |
|---|---|---|
| Provider | Invesco | iShares (BlackRock) |
| Index | Nasdaq-100 Index | S&P 500 |
| TER | 0.20% | 0.07% |
| Tracking Difference | -0.01% to -0.05% | -0.02% |
| AUM | ~$450B | ~$142B |
| Launched | 1999 | 2010 |
| Replication | Physical (Full) | Physical (Full) |
| Domicile | USA | Ireland |
| Structure | Unit Investment Trust (UIT) | Accumulating |
| ISIN | US46090E1038 | IE00B5BMR087 |
Table of contents
- What QQQ and CSPX Have in Common
- Where They Differ
- Which Should Indian Investors Buy?
- Already Holding One? Should You Switch?
- About Paasa
What QQQ and CSPX Have in Common
- Both are massive, highly liquid primary vehicles for capturing large-cap US equities.
- Both physically hold the underlying shares of their respective indices.
- Both feature heavy allocations to dominant "Magnificent Seven" companies like Apple, Microsoft, Amazon, and Nvidia.
- 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
Index Focus and Concentration Risk
While CSPX provides broad market exposure across all sectors via the S&P 500, QQQ is highly specialized. By rule, the Nasdaq-100 strictly excludes all financial companies. As a result, QQQ is heavily concentrated in Information Technology (roughly 49%) and Communication Services.
The portfolio is exceptionally top-heavy, with its top 10 holdings routinely accounting for 45% to 50% of the total fund weight. While this concentration has historically driven massive outperformance over the broader market, it introduces distinct growth-factor risks and significantly higher historical volatility compared to CSPX.
Domicile and Tax Efficiency
Because QQQ is USA-domiciled, holding it exposes Indian investors to a severe 40% US Estate Tax risk upon death. Furthermore, it operates as a distributing fund, which creates an ongoing tax drag for international investors.
CSPX is legally domiciled in Ireland. This completely shields your assets from the 40% US Estate Tax. Additionally, CSPX utilizes the US-Ireland double taxation treaty to legally reduce dividend withholding taxes to just 15%, providing a massive structural advantage for non-US residents.
Fund Structure and Internal Mechanics
CSPX is a modern, open-ended accumulating ETF. It automatically reinvests dividends internally without creating an annual taxable event in India. Furthermore, BlackRock actively lends out CSPX's physical shares to short sellers, generating extra revenue that effectively offsets its low 0.07% Total Expense Ratio.
QQQ, established in 1999, is structured as a Unit Investment Trust (UIT). Because of strict legal constraints on UITs, QQQ is forbidden from lending its securities and cannot internally reinvest dividends between distribution dates. This results in a slight cash drag and means the fund cannot generate internal revenue to offset its higher 0.20% expense ratio.
Which Should Indian Investors Buy?
For long-term Indian buy-and-hold investors, CSPX is the mathematically and structurally superior choice. Its Ireland domicile protects your wealth from the US Estate Tax, its accumulating structure prevents annual dividend tax leakage, and its broad S&P 500 exposure provides a robust, diversified foundation for building long-term wealth.
You should pick QQQ only if you are an active tactical trader or institutional hedger who requires its unmatched daily trading volume and deep options market.
For retail investors who strictly want a pure-play allocation to mega-cap US technology, QQQ is no longer the most efficient vehicle. Instead, you should look toward Invesco's modern equivalent, QQQM, which tracks the exact same Nasdaq-100 index but operates as an open-end fund with a lower 0.15% expense ratio, the ability to lend shares, and no UIT cash drag.
Already Holding One? Should You Switch?
If you already hold QQQ, deciding whether to switch requires weighing immediate switching costs against structural tax risks. Selling your QQQ shares triggers a capital gains event in India, meaning you will pay STCG at your slab rate if held under 24 months, or LTCG at 12.5% if held longer.
However, unlike switching between two identical UCITS funds, transitioning out of QQQ removes your exposure to the 40% US Estate Tax. If your US portfolio is large, absorbing the capital gains tax hit today might be a necessary defensive move to protect your overall estate. If your portfolio is smaller and you wish to avoid triggering immediate taxes, simply leave your existing QQQ shares alone and direct all future capital into CSPX.
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 CSPX. 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.

