V is for VOLATILITY.
Volatility is the measure of how much an asset's price changes over time. High volatility means prices move sharply up or down, creating both opportunities and risks. Low volatility means prices remain relatively stable. Traders use volatility to assess market uncertainty and potential price movements.
For example, if Bitcoin rises from $100,000 to $110,000 and then drops to $95,000 within a few days, that's high volatility. If it stays between $100,000 and $102,000, that's low volatility.
Volatility measures the speed and size of price movements in a market.