How Interest Rates Affect Investments: A Guide for International Investors

Interest rates are the price of money. When central banks adjust rates, they are effectively changing the cost of borrowing and the return on holding safe assets across the entire economy. The ripple effects flow into every corner of financial markets — from government bonds to commercial property, from technology stocks to emerging market currencies.

For internationally mobile investors managing wealth across multiple countries and currencies, understanding interest rate dynamics is not optional. The rate cycle is the dominant macroeconomic variable driving asset class returns, currency movements, and cross-border capital flows.

This guide explains the rate cycle, how different asset classes respond, what the sharply elevated then normalising rate environment of 2022–2026 has meant for investors, and how to position a portfolio through rate cycles without trying to time them precisely.

The Interest Rate Cycle: A Brief Overview

Central banks set short-term interest rates as their primary tool for managing inflation and economic growth. The cycle operates broadly as follows:

Rate cuts / low rates: Central banks cut rates to stimulate growth during recessions or periods of low inflation. Borrowing becomes cheap, investment increases, and asset prices tend to rise as future cash flows are discounted at a lower rate. The 2009–2021 period of historically low rates in the US, UK, and eurozone was the longest such period in modern economic history.

Rate rises: When inflation rises above the target (typically 2% in the UK and eurozone), central banks raise rates to cool demand. Borrowing becomes more expensive, investment slows, and asset prices adjust downward as future cash flows are discounted more heavily.

The 2022–2024 rate rise cycle: The sharpest rate rise cycle in approximately 40 years. UK Bank Rate rose from 0.1% in late 2021 to 5.25% by mid-2023. The US Federal Funds Rate rose from near-zero to approximately 5.25–5.50%. The European Central Bank raised rates from negative territory to approximately 4.0%. This pace of tightening had not been seen since the Paul Volcker era in the early 1980s.

Rate cuts begin, 2024–2025: As inflation began to decline toward target, central banks began cautious rate-cutting cycles. The Federal Reserve, Bank of England, and ECB all began reducing rates from their peaks, though the pace was slower than many investors anticipated as inflation proved sticky.

2026 context: As of 2026, rates have fallen from their peaks but remain significantly higher than the near-zero levels of 2015–2021. The "higher for longer" view — that rates will not return to pre-2022 levels quickly — has shaped investment strategy across asset classes.

How Rates Affect Bonds

The bond market is the most directly affected by rate changes, and the relationship is mechanical:

Inverse relationship between rates and bond prices. A bond pays a fixed coupon (interest rate) for its life. When new bonds are issued at a higher rate, existing bonds paying a lower coupon become less attractive. Their price falls until the yield they offer matches the new market rate.

For example: a ten-year bond paying a 2% coupon, issued when rates were 2%, would have lost approximately 15–18% of its market value if rates rose to 4% — before any coupon income was received. This is exactly what happened to many bond portfolios in 2022, when global bond markets experienced their worst annual returns in decades.

Duration matters. Longer-duration bonds fall further in price for the same rise in rates. A 30-year bond is far more sensitive to rate changes than a two-year bond. This is why short-duration strategies — moving to two-to-three-year bonds or T-bills when rates rise — became popular as rate rises were anticipated.

The silver lining of higher rates. After the 2022–2024 cycle, bond yields are meaningfully higher than in the prior decade. A 10-year UK gilt yielding 4–4.5% (approximate range as of 2026) is now a genuinely competitive asset for income and capital preservation, whereas at 1% it was barely covering inflation. Bonds are more interesting as an investment in the current rate environment than they were in 2019–2021.

How Rates Affect Equities

The relationship between interest rates and equities is more complex than for bonds, because equities are affected through multiple channels:

The discount rate effect. Equity valuations depend on discounting future earnings back to present value. When rates rise, the discount rate rises, reducing the present value of future earnings. This disproportionately affects growth companies, whose earnings are weighted toward the distant future.

Technology and growth stocks fell sharply in 2022 precisely for this reason. Companies that were priced on earnings expected 10–15 years out saw their valuations compressed significantly as the discount rate moved from near-zero to 5%.

Value stocks and cyclicals: More modestly affected by rate changes, as their earnings are nearer-term and their valuations are already lower multiples of current earnings. In 2022, value stocks significantly outperformed growth stocks — a direct consequence of the rate cycle.

Financial stocks: Banks tend to benefit from rising rates in the short to medium term, as the spread between their lending rates and deposit rates widens. Net interest margin — the key profitability driver for banks — typically improves as rates rise. This is why bank stocks often perform relatively well in early rate-rise environments.

Property companies and REITs: Commercial property and REITs are strongly affected by rate rises through two channels: higher financing costs on their debt, and rising discount rates on their property income streams. UK and global REITs fell substantially in 2022–2023 as rates rose. As rates normalise, the valuation case for income-generating property improves.

How Rates Affect Property

Physical property is affected by interest rates primarily through:

Mortgage costs. As rates rise, mortgage payments increase for buyers and for property owners remortgaging. This reduces the pool of buyers who can afford a given property at a given price, softening demand and exerting downward pressure on prices.

Property yield compression. When safe assets (bonds, cash) yield 4–5%, property investors demand a higher yield from property to compensate for its illiquidity and management requirements. This means property prices must fall until the yield rises to an acceptable premium above risk-free rates. The residential and commercial property markets across the UK, US, and Europe experienced exactly this repricing in 2022–2024.

Normalisation: As rates fall from their peaks, the pressure on property valuations eases. Improved affordability supports buyer demand. However, property markets adjust slowly, and the full impact of a rate cycle typically takes two to four years to fully flow through.

How Rates Affect Currencies

Interest rate differentials are one of the most powerful drivers of currency movements:

Higher rates attract capital. If UK rates are significantly higher than Japanese rates, investors sell yen to buy pounds and invest at higher UK rates. This demand for sterling supports the pound. Conversely, when the UK's relative rate advantage narrows or disappears, the supporting capital flow reverses.

The carry trade. Professional currency traders systematically borrow in low-interest-rate currencies and invest in high-interest-rate currencies, earning the rate differential. When this trade is unwound (typically in a risk-off event), it can cause sharp, sudden currency movements.

Expectations matter more than current rates. Currency markets are forward-looking. If the market expects the Fed to cut rates faster than the Bank of England, the pound may strengthen against the dollar even before any actual rate cuts occur. Following central bank communication — particularly Federal Reserve meeting statements — provides the clearest forward signal for currency markets.

How Rates Affect Cash

The most direct beneficiary of rising rates is cash and cash equivalents:

Cash deposits, money market funds, and short-duration government bonds all benefit immediately when rates rise. In 2022–2024, money market funds in the UK and US began offering 4–5% annual returns — a meaningful positive real return for the first time since 2007–2008.

For internationally mobile investors holding significant cash balances (waiting to deploy, between property transactions, or as an emergency reserve), the higher-rate environment of 2022–2026 made cash significantly more rewarding than the near-zero returns of the prior decade.

The risk: as rates fall, cash returns decline quickly. Investors who locked into higher-rate fixed-term deposits or bonds before rates fell benefit from the higher return for the term of the deposit; those who remained in variable-rate cash accounts see returns fall as rates are cut.

Planning Through Rate Cycles

The key insight for investors is: do not try to time rate cycles precisely. Central bank decisions are difficult to predict; market reactions to expected decisions are even harder to predict.

Instead, use rate-cycle awareness to make better structural decisions:

• When rates have risen significantly and bond yields are attractive relative to history, extending bond duration gradually is a reasonable allocation decision — not a timing bet.
• When rates are at historic lows and bond yields are negligible, reducing duration and accepting some cash or short-duration risk makes structural sense.
• In any rate environment, the portfolio should remain broadly diversified across asset classes — because the next rate cycle will eventually reverse the current one.

For 2026 specifically: bond yields are at historically reasonable levels, making fixed income an interesting allocation after years of being unattractive. Equity valuations — particularly in the US — remain elevated despite the rate rises. Property is adjusting but has not fully repriced in all markets. The case for genuine diversification is stronger than in the low-rate period, when equities were essentially the only game in town.

How Global Investments Can Help

At Global Investments, we help internationally mobile investors navigate the interest rate cycle through thoughtful asset allocation rather than reactive timing decisions. We monitor central bank signals, cross-asset valuations, and yield curve dynamics to inform tactical positioning within a framework of long-term, diversified portfolio construction.

For investors with assets and spending in multiple currencies, we also advise on the currency implications of rate differentials — an especially important dimension for those moving between jurisdictions with meaningfully different rate environments.

Please note that all investments carry risk. Interest rate movements can be larger, faster, and in different directions than anticipated. Bond prices can fall significantly when rates rise. Equity markets can fall despite favourable rate conditions. This guide is for information purposes only and does not constitute personalised financial advice. Past relationships between rates and asset classes may not persist. Always seek professional advice relevant to your specific circumstances.