VUAA vs CSPX — Which S&P 500 ETF to Choose?

Choosing the right S&P 500 ETF is one of the most important decisions for Polish investors wanting to invest in the American stock market. Two most popular ETFs — Vanguard S&P 500 UCITS ETF (VUAA) and iShares Core S&P 500 UCITS ETF (CSPX) — dominate Polish investor portfolios. In this article, we'll comprehensively compare both funds and help you decide which better fits your investment strategy.

Basic Differences Between VUAA and CSPX

VUAA (Vanguard S&P 500 UCITS ETF)

• Ticker: VUAA
• Dividends: Accumulating (automatically reinvested)
• TER: 0.07% annually
• Base currency: USD
• Domicile: Ireland
• Assets: Over 30 billion USD

CSPX (iShares Core S&P 500 UCITS ETF)

• Ticker: CSPX
• Dividends: Accumulating (automatically reinvested)
• TER: 0.07% annually
• Base currency: USD
• Domicile: Ireland
• Assets: Over 80 billion USD

Detailed Cost Analysis

Management Costs (TER)

Both ETFs have identical management costs of 0.07% annually. This means from a 10,000 PLN investment, you'll pay only 7 PLN in management fees annually. This is exceptionally low cost for active management of a 500-company portfolio from America's largest companies.

Transaction Costs

Purchase and sale costs depend mainly on your broker:

• XTB: 0% commission for turnover up to 100,000 EUR monthly
• mBank: From 0.39% + min. 12 PLN
• ING: 0.50% + min. 15 PLN
• PKO BP: 0.59% + min. 29 PLN

Freenance Tip: Use our app to track actual investment costs. The built-in calculator helps compare total costs across different brokers and optimize your choice.

ETF Taxation in Poland

Regular Accounts (Brokerage Accounts)

Both ETFs are subject to Belka Tax (19%):

• Capital gains tax: 19%
• Ability to offset losses against gains
• PIT-38 filing obligation

IKE (Individual Retirement Account)

On IKE accounts, both ETFs are tax-free:

• No capital gains tax
• No PIT reporting requirement
• 2026 contribution limit: 29,040 PLN

IKZE (Individual Retirement Security Account)

• Tax deduction on contributions (19% or 32%)
• 2026 contribution limit: 10,284 PLN
• Tax on withdrawal at retirement age

Availability and Liquidity

VUAA

• GPW: Yes, since 2021
• Spreads: Very low (0.01-0.02%)
• Volume: High, allowing problem-free transactions

CSPX

• GPW: Yes, very popular
• Spreads: Very low (0.01-0.02%)
• Volume: Highest among all ETFs on GPW

Winner: CSPX has slightly higher liquidity due to larger assets under management.

Fund Structure and Holdings

Top Holdings (March 2026)

Both ETFs track the same S&P 500 index, so their holdings are nearly identical:

1. Apple (AAPL) - ~7.0%
2. Microsoft (MSFT) - ~6.8%
3. Amazon (AMZN) - ~3.4%
4. NVIDIA (NVDA) - ~3.2%
5. Alphabet (GOOGL) - ~3.1%

Sector Diversification

• Technology: ~28%
• Financial Services: ~13%
• Healthcare: ~12%
• Consumer Discretionary: ~11%
• Communication: ~9%

Performance and Tracking Error

Both funds very precisely track the S&P 500 index:

• VUAA tracking error: 0.05% annually
• CSPX tracking error: 0.04% annually

The difference is minimal and shouldn't influence investment decisions.

Dividends and Reinvestment

Dividend Approach

Both ETFs are accumulating versions, which means:

• Automatic dividend reinvestment
• No need to pay dividend tax in Poland
• Compound effect works at full power

Alternative Distributing Versions

• VUSA (Vanguard) - pays dividends quarterly
• CSPX has no distributing version

Which Option for Whom?

Choose VUAA if:

• You value the Vanguard brand and its low-cost philosophy
• You want to support the pioneer of passive investing
• Assets under management size doesn't matter to you

Choose CSPX if:

• You prefer the largest and most liquid S&P 500 ETF
• You value maximum availability and popularity
• You want to invest in the most frequently chosen option by Polish investors

Practical Tips

DCA Strategy (Dollar Cost Averaging)

For regular investing (e.g., 1,000 PLN monthly):

1. Set automatic orders in broker app
2. Use IKE - contribute limit of 2,426 PLN monthly
3. Monitor costs - use Freenance to track actual return rate

Geographic Diversification

S&P 500 is only the American market. Consider supplementing with:

• VWCE - global ETF for developed and emerging markets
• EUNL - European ETF
• EEM - Emerging markets ETF

Common Mistakes

1. Focusing on Micro-differences

The difference between VUAA and CSPX is minimal. More important is:

• Regular investing
• Long-term horizon
• Transaction cost control

2. Ignoring IKE Account

Using an IKE account is the easiest way to increase return rate by 19% (avoiding Belka tax).

3. Market Timing

Trying to "time the market" instead of systematic investing according to plan.

Specific Recommendations

For Beginning Investors

Choose CSPX due to:

• Largest popularity and information availability
• Highest liquidity
• Broad support from all major brokers

For Experienced Investors

The difference is marginal - choose either and focus on:

• Systematically increasing investments
• Tax optimization (IKE/IKZE)
• Portfolio diversification

Investment Monitoring

Key Metrics to Track

1. Total return (including costs)
2. Tracking error relative to S&P 500
3. Transaction costs as % of portfolio
4. Asset allocation in entire portfolio

Monitoring Tools

• Freenance - comprehensive portfolio and cost tracking
• Portfolio Performance - free analysis tool
• Google Finance - basic price tracking

Conclusions

The choice between VUAA and CSPX is a pseudo-problem. Both ETFs offer:

• Identical costs (0.07% TER)
• Nearly identical tracking error
• GPW availability
• Dividend accumulation

Most Important is:

1. Start investing - every day of delay means lost profits
2. Regular additions - use DCA and compound effect
3. Tax optimization - maximize IKE usage
4. Long-term approach - minimum 10-15 year investment horizon

Practical Advice: If you can't decide, split investments equally between both funds. The final result difference will be negligible, and risk diversification by issuer might make sense for large amounts.

Remember that the best investment is one that actually gets executed. Choose one ETF, set up an automatic order, and focus on systematically increasing your investments.