Inflation & Your Portfolio
A return that doesn't beat inflation is a loss in real terms, even when the account balance goes up.
Inflation is the rate at which prices rise across the economy, meaning the same amount of money buys less over time. A portfolio that returns 4% in a year when inflation ran at 6% didn't actually grow in real, purchasing-power terms — it shrank by roughly 2%, even though the account balance itself went up. This distinction matters more the longer money stays invested.
A rough approximation, accurate enough for most practical purposes — a 7% nominal return in a 3% inflation year is roughly a 4% real return.
No asset is a perfect, guaranteed inflation hedge, but some categories have historically held up better than others during inflationary stretches. This directly connects to the All-Weather Portfolio lesson in the ETFs track, whose entire 4-quadrant framework is built around exactly this question.
During a period of persistently rising inflation, businesses able to raise their own prices in line with rising costs (pricing power) tend to protect their real profits better than businesses locked into fixed prices or long-term contracts. Fixed-rate bonds, by contrast, pay the same fixed dollar amount regardless of inflation, so their real value erodes directly and predictably as inflation runs.
- Nominal returns (the number your account shows) and real returns (what that number can actually buy) are different, and only the second one reflects genuine wealth growth.
- Inflation's damage compounds over time just like returns do — a persistent gap between nominal returns and inflation meaningfully erodes purchasing power over a long horizon.
- No single asset class reliably hedges every kind of inflationary environment — see the All-Weather Portfolio lesson for a structural approach to this exact problem.