Upstream Bio, Inc. (UPB)

Last Closing Price: 9.23 (2025-05-30)

Historical Volatility (Close-to-Close) (30-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.

Upstream Bio, Inc. (UPB) had 30-Day Historical Volatility (Close-to-Close) of 0.6452 for 2025-05-30.