National Grid Transco, PLC (NGG)

Last Closing Price: 70.19 (2025-07-11)

Historical Volatility (Close-to-Close) (120-Day)

Historical Volatility (Close-to-Close): The past volatility of the security over the selected time frame, calculated using the closing price on each trading day.

National Grid Transco, PLC (NGG) had 120-Day Historical Volatility (Close-to-Close) of 0.2971 for 2025-07-11.