Polish vs Foreign Stock Exchanges — Where to Invest in 2026?

Quick Answer

You don't have to choose between the Polish exchange (GPW) and foreign markets — most long-term investors combine both. The GPW represents only about 0.3% of global market capitalization, and over the last 10 years to 2025 the WIG returned roughly 6% versus around 12% for the S&P 500 and 10% for MSCI World. A common pragmatic split is around 80% in globally diversified ETFs (such as VWCE or IWDA) as the portfolio core, with about 20% in GPW exposure for a local accent.

• Diversification: foreign markets give exposure to 3,700+ global companies
• Costs: foreign ETF TER ~0.07–0.22% vs ~0.30–0.50% on GPW equivalents
• GPW upside: simplicity, PLN-native, no currency conversion
• A 100% GPW portfolio is rarely justified for long-term wealth building

Home Bias — The Polish Investor's Trap

Poles mainly invest on the GPW (Warsaw Stock Exchange). It's natural — we know Polish companies, it's easy to open an account, we don't worry about currencies. The problem is that the Polish exchange represents about 0.3% of global market capitalization. By investing exclusively on GPW, you're missing 99.7% of the global market.

This phenomenon has a name: home bias — the tendency to over-invest in the domestic market. It's one of the most common investment mistakes worldwide.

Performance — GPW vs the World

Historical Returns (10 years, to 2025)

The Polish exchange systematically underperformed developed markets — especially the USA. This doesn't mean it will always be so, but the trend is clear.

Why Did GPW Perform Poorly?

• Index structure: WIG is dominated by banks, energy, and state-owned companies. Lack of global tech leaders
• Capital outflow: pension funds (OFE) were shrinking, less money flowing to GPW
• Political risk: frequent regulatory changes, sector taxes
• Small and medium companies: mWIG40 and sWIG80 performed better than WIG20, but liquidity is limited

Diversification — Why It's Crucial

By investing exclusively on GPW, you're exposed to:

• Country risk: Poland's economic problems affect both GPW and your salary simultaneously
• Sector risk: GPW is dominated by finance and energy
• Currency risk (reverse): if PLN loses value, your foreign assets gain. But if you have everything in PLN — you lose purchasing power

Global diversification means your portfolio isn't hostage to one country, one currency, and a few sectors.

How to Invest Abroad from Poland?

ETFs on European Exchanges

Simplest way — you buy ETFs listed on Xetra, Euronext Amsterdam, or LSE through a Polish broker:

• XTB: 0% commission (up to limit)
• Bossa Zagranica: 0.29% commission
• mBank DM: 0.29% commission
• DEGIRO: low commissions

Popular ETFs:

• VWCE — entire world (Vanguard FTSE All-World)
• IWDA — developed countries (iShares MSCI World)
• CSPX — S&P 500 (iShares)

ETFs on GPW

For several years, Polish ETFs have been listed on GPW:

• Beta ETF WIG20 — Polish blue chips
• Beta ETF S&P 500 — US exposure, listed in PLN
• Beta ETF MSCI World — global market

Advantage: you buy in PLN on GPW, no need for foreign account. Disadvantage: higher TER and lower liquidity than originals.

Costs of Investing Abroad

Currency conversion is an additional cost, but lower TER of foreign ETFs more than compensates for it long-term.

Taxes — Notes

Foreign Dividends

Dividends from foreign ETFs may be subject to double taxation:

• Withholding tax at source (e.g., 15% in Ireland — headquarters of most UCITS ETFs)
• Tax in Poland: 19%, with foreign tax credit

In practice, accumulating ETFs (e.g., VWCE, IWDA) — don't pay dividends, so there's no withholding tax problem. Profit is reinvested within the fund.

PIT-38

You settle gains from foreign ETF sales in PIT-38. Most brokers (XTB, Bossa) generate PIT-8C automatically.

Arguments for GPW

• Simplicity: no currency conversion, Polish-language platforms
• Company knowledge: easier to analyze companies you know
• Growth potential: GPW is undervalued — low P/E ratios may indicate potential
• Dividends: Polish dividend companies (PKN Orlen, PZU, Kęty) offer attractive dividend yields
• No currency risk: you invest in PLN

Arguments for Foreign Exchanges

• Diversification: exposure to 3,700+ companies from around the world
• Higher historical returns: developed markets beat GPW
• Access to tech leaders: Apple, Microsoft, NVIDIA — unavailable on GPW
• Lower ETF costs: 0.07% vs 0.30%+
• Currency protection: PLN weakening = increase in foreign asset value

Optimal Strategy

You don't have to choose — combine both markets:

• 80% global ETFs (VWCE or IWDA + EMIM) — portfolio core
• 20% GPW — Polish exposure (Beta ETF WIG20 or selected dividend companies)

This proportion provides global diversification with local accent. You can adjust it — important that GPW doesn't constitute 100%.

Summary

How Freenance Can Help

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FAQ

Is it worth investing only on the Polish stock exchange (GPW)?

Investing exclusively on GPW concentrates your portfolio in a market that represents about 0.3% of global capitalization, exposing you to country, sector, and currency risk all at once. Most long-term investors benefit from holding a globally diversified core (via UCITS ETFs) and treating GPW as a smaller satellite allocation.

What is home bias and why does it hurt returns?

Home bias is the tendency to over-invest in your domestic market because it feels familiar. The cost is reduced diversification and missing the higher historical returns delivered by developed markets like the US, where most global tech leaders are listed.

Do I need a foreign brokerage account to buy international ETFs?

No, several Polish brokers provide access to ETFs listed on Xetra, Euronext Amsterdam, or LSE directly from a Polish account. Alternatively, you can buy Beta ETFs listed in PLN on GPW that track global indices, though they typically have higher TER and lower liquidity than the originals.

How are foreign ETF dividends taxed for Polish residents?

Dividends from foreign ETFs may face withholding tax at source plus 19% PIT in Poland, with foreign tax credit applied via the double tax treaty. Accumulating ETFs like VWCE or IWDA do not distribute dividends, which avoids the withholding complication entirely since gains are taxed only on sale via PIT-38.

What allocation between GPW and foreign markets makes sense?

A common pragmatic split is around 80% in global ETFs (e.g., VWCE or IWDA plus emerging markets) and 20% in GPW exposure through Polish dividend stocks or a WIG20 ETF. The exact ratio depends on your risk tolerance, but a 100% GPW portfolio is rarely justified for long-term wealth building.