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🧭 Market Literacy

Understanding Market Volatility

March 30, 2026 · 1 min read

Volatility measures how much and how quickly prices change. A highly volatile market sees large price swings in short periods. A stable market moves more gradually.

What Causes Volatility

  • Economic uncertainty: Unclear economic outlook makes investors nervous
  • Earnings surprises: Better or worse than expected results cause rapid repricing
  • Geopolitical events: Wars, elections, trade disputes create uncertainty
  • Low liquidity: When fewer people are trading, individual trades have a bigger impact on prices

Measuring Volatility

The VIX (often called the "fear index") measures expected volatility in the U.S. stock market over the next 30 days. A VIX above 30 generally indicates high uncertainty; below 15 suggests calm markets.

Normal vs. Abnormal

Some volatility is completely normal and healthy — it reflects new information being incorporated into prices. Extreme volatility, such as during financial crises, reflects genuine systemic stress.

Perspective

Daily swings of 1-2% may feel unsettling, but over decades, markets have historically absorbed even severe downturns. Volatility is the short-term cost of participating in long-term market growth.