PLN bonds and returns in EUR or USD: exchange rates, inflation and costs

The bond currency and your spending currency are different reference points. If a bond pays interest and principal in PLN while future spending is in EUR or USD, the result also depends on how much of that currency you receive on conversion. A fixed coupon or inflation indexation does not fix the zloty’s future exchange rate. For a EUR bond, assess EUR cash flows; a Polish issuer does not by itself mean a PLN bond.

This example is hypothetical; the rates and return are not a current offer. You exchange EUR 1,000 at PLN 4.30 per EUR, receiving PLN 4,300. After one year, principal plus interest totals PLN 4,601: a 7% PLN return before taxes and costs. If the exchange rate is then PLN 4.70 per EUR, you receive approximately EUR 978.94. The EUR result is approximately minus 2.11%, despite the positive PLN return.

For a single end payment without taxes or costs, the base-currency return is: (1 + PLN return) × (initial exchange rate / final exchange rate) − 1, where both exchange rates mean PLN per unit of the same base currency. Coupons converted separately require the exchange rate and costs of each conversion; one PLN YTM does not describe all EUR or USD cash flows. Zloty appreciation can improve the converted result, while depreciation can worsen it.

Include the whole money path: the bank or currency provider’s applied rate, spread, broker commission, minimum fee, transfer and withdrawal charges and any intermediary-bank fees. A gross rate excludes these costs. For a small investment, a fixed fee can matter more than a modest coupon difference. Ask about foreign-currency funding and withdrawal accounts before purchasing; availability and automatic conversion depend on the intermediary.

In later periods, COI and EDO use a formula referencing the price index published by Statistics Poland for Poland, plus the margin specified in the issue letter. This does not automatically hedge inflation in Germany, the UK or the US. Even the PLN outcome requires attention to the initial period, inflation observation lag, taxes and early redemption rules. EUR or USD outcomes also incorporate exchange-rate changes.

A comparison can include three scenarios of your own: an unchanged rate, a stronger zloty and a weaker zloty, keeping payment assumptions identical. Then include costs and taxes applicable to your residence. Also establish when you actually need the money: payment after early redemption or sale need not be immediate. Guarantees relating to the issuer’s obligations do not guarantee your capital’s value after conversion into another currency.