How Inflation Affects Different Investments and What to Do About It

Nominal returns are what brokerage statements show. Real returns are what investors actually keep. The formula is straightforward: real return equals nominal return minus the inflation rate. A portfolio growing at 6% annually while inflation runs at 4% is effectively a 2% portfolio. That gap doesn’t feel significant in any single year. Compounded over a decade, it’s the difference between building wealth and treading water.

The adjustment required isn’t dramatic. It’s targeted. Each asset class responds to inflation differently, and matching the portfolio response to those mechanics produces better real outcomes than either ignoring inflation or making sweeping tactical changes.

How Inflation Works Through the Economy

Developing a successful strategy for investing during inflation requires a deep dive into the transmission mechanisms of the economy. It’s not enough to know which assets struggle; you must understand why higher interest rates and shifting exchange rates reshape the attractiveness of your portfolio in real-time.

Rising inflation typically drives up interest rates as central banks tighten policy to slow price growth. Higher rates lower bond prices, increase borrowing costs for companies, reduce corporate earnings where debt is significant, and compress valuations for assets whose returns are weighted toward the future. Currency markets become more volatile as rate differentials shift exchange rates, adding risk for globally diversified portfolios.

That chain of effects means inflation doesn’t just erode purchasing power directly. It reshapes the relative attractiveness of every asset class simultaneously, rewarding those with inflation linkage and penalizing those with fixed nominal cash flows.

Asset by Asset: What Happens and What to Do

Cash and Savings

Cash loses purchasing power fastest during inflationary periods because nominal balances remain stable while what those balances can buy declines. U.S. Bank describes cash as among the assets hit hardest by inflation. The appropriate response is limiting cash to genuine short-term liquidity needs rather than holding excess cash as a defensive position. In a 3.3% inflation environment, excess cash generates a guaranteed real loss.

Fixed-Rate Bonds

Fixed coupon payments don’t adjust as inflation rises, meaning real yield turns negative when inflation exceeds the coupon rate. Long-duration bonds face an additional price risk: as interest rates rise in response to inflation, bond prices fall, generating capital losses on top of the purchasing power erosion. The practical adjustment is shifting toward TIPS, whose principal adjusts with CPI, or short-duration floating-rate instruments that reprice as rates move.

Stocks Broadly

Equities are volatile in the short term during inflationary periods but have historically outpaced inflation over long horizons. The key distinction is within equities rather than between equities and other assets. Pricing-power sectors including consumer staples, energy, healthcare, and utilities maintain real revenue growth because they can pass cost increases to consumers. Unprofitable growth companies and long-duration technology stocks face multiple compression as higher discount rates reduce the present value of distant cash flows.

The practical adjustment is rotating toward pricing-power sectors and reducing exposure to high-multiple names dependent on low interest rate assumptions.

Real Estate and REITs

Property values and rents tend to rise with inflation, giving real estate a structural advantage over fixed nominal instruments. REITs offer a liquid route to that exposure without direct property ownership. J.P. Morgan forecasts REIT earnings growth accelerating to nearly 6% in 2026, up from 3% in 2025, reflecting the sector’s improving position as rental income grows alongside prices.

Commodities

Commodity prices are directly tied to rising input costs, producing strong inflation correlation particularly during supply-driven inflationary episodes. Metals, energy, and agricultural commodities all benefit when the cost of raw materials rises. Tactical commodity hedges through ETFs or mining stocks add inflation correlation without the complexity of direct commodity ownership.

Gold

Gold set 53 all-time highs in 2025 and surged over 45% for the year. As a store of value during inflationary periods, it provides portfolio hedge benefits that complement other inflation-resistant assets. The important qualification is that gold’s performance correlates more closely with geopolitical uncertainty and dollar-debasement concerns than with CPI readings directly. A modest allocation captures the hedge benefit without over-concentrating in an asset whose short-term performance can diverge from inflation data.

I Bonds

Series I savings bonds combine a fixed rate with an inflation adjustment, making them one of the most direct CPI hedges available to individual investors. The limitation is a $10,000 annual purchase cap per person through TreasuryDirect, which constrains their role in larger portfolios but makes them worth maxing out for investors within that range.

Building the Resilient Portfolio

No single asset protects against inflation across every scenario. TIPS outperform nominal bonds when inflation runs above the breakeven rate but lag when it falls below. Gold surges during macro uncertainty but can underperform when real rates rise sharply. Commodities track input price inflation closely but are volatile and cyclical.

The most resilient portfolios combine multiple complementary tools:

• TIPS for direct CPI linkage in fixed income
• Short-duration floating-rate bonds to limit interest rate sensitivity
• Pricing-power equities in non-cyclical sectors
• REITs for liquid real asset exposure
• Gold as a macro uncertainty hedge at a modest allocation
• Tactical commodity exposure through ETFs for input price correlation
• I Bonds up to the annual cap for direct inflation adjustment

Each component addresses a different inflation transmission channel. Together they build a portfolio that generates acceptable real returns across a range of inflation scenarios without depending on any single asset class to carry the full hedge.

The real return calculation is the frame that keeps portfolio decisions grounded during inflationary periods. Nominal gains that don’t exceed the inflation rate aren’t gains in any meaningful sense. Building a portfolio where multiple asset classes have structural reasons to deliver positive real returns is what inflation-resistant investing actually means in practice.