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Inflation

The rate at which the general level of prices for goods and services rises over time, eroding the purchasing power of money.

What is Inflation? — Definition

Inflation is measured by tracking a basket of goods and services over time. In the U.S., the main measure is the Consumer Price Index (CPI). The Federal Reserve targets approximately 2% annual inflation as healthy for the economy. When inflation runs hot — as it did in 2022, peaking near 9% — the Fed raises interest rates to cool spending and borrowing.

For investors, inflation is a critical risk. Cash and low-yield bonds lose real purchasing power when inflation is high. Stocks, real estate, and commodities historically provide better long-term inflation protection, but high inflation can also hurt company profit margins if input costs rise faster than prices.

Example

$100,000 in cash earning 0% interest during a period of 7% inflation is worth only $93,000 in real terms after one year. After five years, it's worth approximately $71,000 in today's purchasing power — a 29% loss without any nominal decline.

The BMInsider Fear & Greed Index often reflects inflation fears — inflation surges tend to push sentiment toward Fear as investors worry about Fed rate hikes and their impact on equity valuations.

Frequently asked questions about Inflation

What does Inflation mean in practice?
Inflation is measured by tracking a basket of goods and services over time. For retail investors this means understanding the term is the first step toward making it actionable in your own portfolio decisions.
How does Inflation relate to Bond?
Inflation and Bond are closely linked concepts in finance: understanding one helps you grasp the other faster, since both appear together in real-world investing scenarios. Our glossary covers both in depth.
Why should investors know about Inflation?
Solid finance vocabulary is the foundation of every investment decision. Whether you read company filings, follow market commentary or analyze stocks yourself — knowing what Inflation means saves time and prevents costly misunderstandings.
Where can I learn more finance terms?
Our complete finance glossary covers every key term — from Alpha to WACC — with concrete examples and clear explanations, all written specifically for retail investors rather than finance professionals.
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