Real interest rates, stagflation risks, and commodities as inflation hedge

What happens when real interest rates turn negative and inflation won’t fade? Trading expert Antreas Themistokleous reveals how commodities act as inflation hedge—and what traders need to watch next.

As a market analyst, I’ve often seen how shifts in real interest rates reshape global asset flows. In this deep-dive analysis, I explore the connection between real rates, stagflation, and the role of commodities as inflation hedge during uncertain times. I also discussed this topic in my latest Trading Talks podcast episode, where we unpacked how traders can interpret macroeconomic data to stay ahead of market turning points.

Watch the full Exness Trading Talks episode here:

Understanding stagflation and its origins

Stagflation combines two economic forces that rarely coexist: persistent inflation and stagnating growth. It’s a worst-case scenario because central banks are trapped: if they raise rates, they crush employment and growth, and if they lower them, they fuel inflation.

The concept first gained traction in the 1970s, particularly in the UK during what was called the “Barber Boom.” Policymakers attempted to stimulate economic growth through low interest rates and cheap credit, but this approach ultimately led to runaway inflation. When the oil crisis hit, it exposed the underlying structural weaknesses of the British economy: excessive fiscal spending, poor productivity, and dependence on external energy sources.

Oil was the spark, but not the cause. The real issue was policy misalignment: the government was stimulating demand in an already constrained economy. That’s the essence of stagflation when growth policies collide with real-world supply limits.

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What policy mistakes make stagflation worse

The biggest mistake during stagflationary periods is overconfidence in textbook solutions. Policymakers often assume cutting rates will automatically stimulate demand. However, when inflation is already high, such a move devalues the currency and amplifies price pressures.

In the 1970s, both the UK and Japan fell into this trap while the United States experienced a similar issue later in the decade, driven partly by massive military spending during the Vietnam War and easy credit conditions. The result was a decade of weak growth, volatile markets, and collapsing confidence in fiat currencies.

Modern central banks have learned from those mistakes; the US Federal Reserve’s current mantra, “we need more data,” reflects caution born from history. The Fed is reluctant to cut rates prematurely, knowing that doing so while inflation is still sticky could recreate 1970s-style conditions.

Read more about how inflation and interest rate cycles shape market volatility in our Inflation vs interest rates and volatility analysis.

Interest rates were cut fast in the early 80s, but went up again because the effect was not what was expected.

How traders can recognize stagflation early

When inflation remains elevated despite weakening GDP or cooling job markets, the risk of stagflation increases. In this phase, real interest rates—nominal rates adjusted for inflation—become the most important signal.

If real rates are deeply negative, money is effectively losing value in savings or bonds. That’s when capital typically rotates toward real assets and commodities as inflation hedge.

• CPI reveals how sticky inflation is.
• GDP indicates whether real growth remains intact.
• Employment data signals whether wage growth or job creation is sustaining demand.

Real interest rates and market behavior

In periods of high inflation, nominal yields may appear attractive, but if inflation outpaces them, real interest rates become negative, which distorts how markets function.

You can see high bond yields coexisting with a weak dollar, or strong GDP data triggering a stock market sell-off because traders expect higher costs and margin compression. Market reactions stop making sense in the usual way because investors shift focus from nominal data to real returns.

This is the moment when liquidity preferences change. Traders start prioritizing capital preservation and inflation protection. The focus moves away from growth assets and toward stores of value, especially commodities.

Commodities as inflation hedges

Using commodities as inflation hedges is crucial when inflation erodes the real value of paper assets. However, not all commodities behave the same way. Understanding what’s driving inflation is key.

In a demand-driven inflationary environment (an overheated economy), industrial commodities such as copper, aluminum, and oil tend to outperform because demand for production inputs remains strong.

In supply-driven inflation (disruptions, sanctions, or logistics breakdowns), precious metals like gold and silver tend to hold value better because investors seek safety over yield.

Gold and silver usually strengthen when real interest rates turn negative. Investors turn to them when they lose confidence in the value of cash or government bonds. Explore this dynamic further in our gold price forecast and real interest rate analysis.

Similarly, energy markets benefit from supply constraints or geopolitical risks, but they’re also sensitive to demand cycles, so timing matters.

For traders, this means that commodities, serving as inflation hedges, should be treated tactically. Know whether the inflation you’re hedging is structural, cyclical, or shock-based. Each phase favors different assets and strategies.

Current market context

Currently, the US economy is not experiencing stagflation since GDP remains positive, unemployment is low, and inflation is gradually trending lower. These conditions suggest resilience rather than stagnation.

The AI investment boom and tech sector expansion have provided an unexpected cushion to US growth, offsetting weakness in traditional manufacturing and energy sectors. Equity markets, led by the S&P 500, remain relatively strong, showing that investors still have confidence in future growth despite elevated prices.

However, the risk remains, real interest rates are still narrow, and if inflation proves stickier than expected. These conditions could quickly erode purchasing power and shift sentiment toward defensive assets.

The S&P 500 chart showing that the stock market in the US is still strong and not in stagflation conditions.

Trading in a stagflation scenario

If stagflation does appear, traders need to abandon the typical “good news equals bullish” mindset. Market reactions will invert, and positive economic data could push equities down if it implies persistent inflation and tighter policy. Meanwhile, bonds might sell off even as yields rise.

In this environment, flexibility is everything; focus on real interest rates rather than central bank rhetoric alone. Track the performance of commodities as inflation hedge, such as gold, silver, and energy.

Volatility also presents an opportunity when correlations between risk assets break down, allowing traders who understand macroeconomic cycles to profit from dislocations rather than trend-following. See how commodities compare to equities during market stress in our Commodities vs stocks volatility study.

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Final thoughts on real interest rates and stagflation

Stagflation is a warning that traditional monetary tools are losing effectiveness. Real interest rates reveal the true state of monetary conditions, while commodities serve as inflation hedges, showing where capital flows when inflation becomes persistent.

The lesson from every stagflationary period is consistent: when paper assets lose purchasing power, real assets gain importance. Traders who recognize this shift early—by reading the signals in real rates, inflation data, and commodity performance—will be positioned to protect capital and capitalize on volatility when others are merely reacting to headlines.