Quest Diagnostics Incorporated (DGX)

Last Closing Price: 180.16 (2025-09-16)

Historical Volatility (Parkinson) (120-Day)

Historical Volatility (Parkinson): The past volatility of the security over the selected time frame, calculated using the high and low prices on each trading day.

Quest Diagnostics Incorporated (DGX) had 120-Day Historical Volatility (Parkinson) of 0.1913 for 2025-09-16.