GPW vs Foreign Stock Exchanges – Where Should You Invest?

The Big Question

Polish investors today have easy access to both the Warsaw Stock Exchange (GPW) and major international markets. But where should you put your money? Each option has distinct advantages and trade-offs.

GPW – The Home Market

The Warsaw Stock Exchange is Central Europe's largest exchange, with over 400 companies on the main market and hundreds more on NewConnect (the growth market).

Advantages:

• No currency risk – everything trades in PLN
• Simple taxes – 19% flat tax on gains, PIT-8C generated automatically by your broker
• Low commissions – starting from 0.19% per trade
• Familiarity – you know the companies (Orlen, KGHM, Żabka, Dino)
• No dividend double taxation – straightforward 19% withholding
• IKE/IKZE eligibility – tax-advantaged accounts work seamlessly with GPW stocks

Disadvantages:

• Limited sector diversity (heavy on banks, energy, mining)
• Lower liquidity compared to Western exchanges
• Fewer world-class growth companies
• Higher correlation with regional geopolitical risk

Key indices:

• WIG20 – 20 largest companies
• mWIG40 – 40 mid-cap companies
• sWIG80 – 80 small-cap companies

International Exchanges

NYSE & NASDAQ (United States)

Combined market cap exceeding $50 trillion. Home to Apple, Microsoft, Amazon, NVIDIA, Tesla, and thousands more. For a head-to-head look at the flagship US index versus Poland's, see our WIG20 vs S&P 500 comparison.

London Stock Exchange

Strong in financial services, mining, and energy. Good for dividend investors.

Xetra (Germany)

Europe's largest exchange. Home to SAP, Siemens, and major European ETFs.

Advantages of foreign exchanges:

• Massive selection – thousands of companies across every sector
• Superior liquidity – tight spreads on popular stocks
• Access to global megatrends (AI, biotech, semiconductors, clean energy)
• Wide range of ETFs covering any market or theme
• Better price discovery due to higher trading volumes

Disadvantages:

• Currency risk (USD/PLN can swing 10-15% annually)
• Higher total costs when accounting for currency conversion
• Tax complexity – especially for US dividends (W-8BEN form required)
• Time zone differences – US markets open at 15:30 Polish time

Cost Comparison

Let's compare buying 10,000 PLN worth of stocks:

GPW (e.g., PKO BP via mBank eMakler):

• Commission: 0.29% = 29 PLN
• Currency conversion: 0 PLN
• Total: ~29 PLN

NYSE (e.g., Apple via XTB):

• Commission: 0 PLN (free up to €100K/month)
• Currency spread: ~0.5% = 50 PLN
• Total: ~50 PLN

NYSE (e.g., Apple via mBank eMakler):

• Commission: 0.29% = 29 PLN
• Currency spread: ~0.5-1.0% = 50-100 PLN
• Total: ~79-129 PLN

For frequent traders, these currency costs add up significantly.

Tax Implications

Capital Gains

Regardless of where you trade, Polish tax residents pay 19% capital gains tax on profits. Your broker should provide a PIT-8C (or equivalent report for foreign brokers).

Dividends – The Tricky Part

Key takeaway: Always file the W-8BEN form with your broker for US stocks. It takes 5 minutes and saves you 11% on every dividend.

The Best Approach: Combine Both

Most experienced Polish investors use both markets:

Sample allocation:

• 30-40% GPW – blue chips and dividend stocks (PKO, PZU, Orlen)
• 40-50% Global ETFs – VWCE, CSPX, or MSCI World
• 10-20% Polish bonds – EDO, COI for stability

This gives you:

• Exposure to Poland's growing economy
• Access to global tech and innovation leaders
• Currency diversification
• Reduced single-market risk

Which Broker for What?

Tracking a Multi-Market Portfolio

When your investments span GPW, NYSE, and perhaps a crypto exchange, keeping track of everything becomes a challenge. Freenance aggregates positions across Polish and international brokers, handles currency conversion, and shows your total net worth in PLN – making it easy to see the full picture.

Summary

• Start with GPW if you're a beginner – simpler taxes, no FX risk, familiar companies
• Add international exposure via ETFs as your portfolio grows
• Always file W-8BEN for US stocks
• Use IKE/IKZE to shelter gains from the 19% tax
• Don't ignore currency risk – it can significantly impact returns

The ideal portfolio combines the best of both worlds: local familiarity with global diversification.

Related Articles

• How to Start Investing in the Stock Market – Beginner's Guide
• First Stocks – What to Buy as a Beginner

FAQ

Are GPW commissions really lower than buying US stocks through a Polish broker?

For pure commission, GPW trades at bank brokerages typically cost 0.19–0.39% (min 3–5 PLN), while foreign-stock trades there cost 0.29–0.50% plus currency conversion of 0.5–1.0%. Once FX spread is included, a 10,000 PLN US-stock trade can cost 2–3× more than the same value bought on GPW.

Can I hold US or German stocks inside IKE or IKZE?

Yes — selected Polish brokers (e.g. XTB, Bossa, DM BOŚ) allow foreign stocks and ETFs inside IKE/IKZE wrappers, with the same 19% capital-gains shield applied to global instruments. Always verify the current instrument list with your broker, as the eligible universe can change.

Why do I lose 11% on US dividends without W-8BEN?

Without W-8BEN the US applies a default 30% withholding to dividends paid to non-residents, but Poland only credits up to 15% under the double-taxation treaty. The extra 11% is effectively forfeited unless you file the form with your broker, which takes a few minutes online.

Is currency risk a reason to avoid foreign exchanges entirely?

Not necessarily — USD/PLN can swing 10–15% in a year, but long-term portfolio diversification across currencies often reduces total risk rather than increases it. The trade-off is short-term volatility for broader sector exposure; this is a personal decision, not investment advice.

Should beginners start with GPW or go straight to global ETFs?

Both paths are valid: GPW offers simpler taxation, PIT-8C automation and no FX risk, while global ETFs (e.g. broad MSCI World trackers) give instant diversification. Many Polish investors begin with GPW for the lower friction and add international exposure once they understand reporting duties — your own goals, horizon and risk tolerance should drive the choice.