The question is, should I hedge or not?

The principles of hedging are fairly straightforward, but it's rarely easy to determine when to add a hedge

Hedging currency exposure may become more appealing as concerns about the dollar's future grow. Investors are increasing the hedges on their US holdings, so this is more than just a theory.

All things considered, anticipated interest rates are the primary factor influencing forward currency rates, which are the rates at which you can commit to buying or selling a currency at a specific future date. Without having to worry about currencies fluctuating against us, we could borrow money in one currency, invest it in another at a higher rate, and lock in a future exchange rate to pay back the loan.

The forward rate for sterling-euro in a year should, therefore, be roughly (1.14 1.021) 1.038 = 1.12 if the sterling-euro exchange rate is 1.14 today, the one-year sterling swap rate is 3.8 percent, and the one-year euro swap rate is 2.1 percent.

Real life is more complicated than that; other factors also influence forward prices. These can include unbalanced demand between two currencies (for example, a greater demand for US dollars) or frictions like taxes. The term "cross-currency basis" refers to this discrepancy between market prices and what interest rates suggest.

The true cost of hedging is frequently much higher than what theory predicts in some situations (such as emerging markets). Costs should be manageable for major developed-market currencies, though hedging techniques in a currency-hedged fund might not always produce ideal outcomes.

Proportional returns.

We can see from the above example that forward exchange rates for sterling should be lower if the expected interest rate in the UK is higher than the interest rate for the foreign currency (and vice versa).

Consequently, investing in a foreign currency asset and hedging the currency should yield higher returns than a local investor in the same asset under higher interest rates. That's because, in addition to receiving the same return in local currency, we also benefit from a currency gain because, when the trade is closed, we receive more sterling back because the forward rate for sterling is lower.

But only when contrasting our hedged returns with local returns does this hold true. What matters to us is whether or not hedging improves our returns in sterling, and this is dependent on future fluctuations in exchange rates. We would be better off not hedging if our currency declined. It would be better for us to hedge if it strengthened.

Assuming forward rates are a reliable indicator of future exchange rate movements is a simple mistake to make in this situation. Despite having limited forecasting power, they are a market rate that allows hedging while preventing risk-free profits. The truth is that currencies are very erratic.

One easy rule of thumb is to hedge exposure to bonds (since exchange rate fluctuations can easily overwhelm bond interest returns), but only hedge stocks in special circumstances. The current discussion centers on whether the risks to the US dollar are unusual, considering that US stocks make up 6070% of the majority of global funds.

Hedged or unhedged?