What Is Volatility?
Volatility is how much and how fast a price moves up and down. A volatile stock swings a lot. A calm stock moves slowly.
Volatility in simple terms
Think of two roads to the same town. One is flat. The other is full of hills. You may end up in the same place, but the hilly road is a much wilder ride. Volatility measures the hills.
What does 20% volatility mean?
Volatility is often given as a yearly percentage. Roughly speaking, 20% volatility means the price often moves up or down by about 20% over a year. A broad index fund is often around 15% to 20%. Single tech stocks can be 40% or more.
Is high volatility good or bad?
It is not good or bad by itself. High volatility means bigger possible gains and bigger possible losses. It is risky if you might need the money soon and have to sell during a dip.
What causes volatility
News about profit, interest rates, wars or elections can all make prices jump. Small and young companies usually swing more than big, steady ones. Whole markets get more volatile in a bear market.
How to handle it
Diversification smooths the ride, because different stocks rarely all fall at once. Investing for many years helps too, because short-term swings matter less over time.
See it in real companies
Open a company to see what it sells and how it makes money.