Volatility

Daily Range Percentile Rank Calculator

Paste a list of historical daily ranges (high minus low, one per line) and enter today's range to see where it ranks. A high percentile means today is an unusually wide range day; a low percentile means an unusually quiet one.

Historical daily ranges (one per line)

Use 20+ values for a meaningful percentile.

Today's Range

Historical values used ···

Mean historical range ···

Median historical range ···

Today's percentile rank ···

Read ···

Educational tool only, not financial advice. Percentile rank describes relative historical volatility, not a signal to buy or sell.

Built by Jason Parker, founder of Trading Ranges.