Why Is LeonaBio ( $LONA ) Stock Up +25.09% Today? (Find out why any stock moved today on Tickeron.) LeonaBio (LONA) shares surged roughly 25% intraday on Tuesday, rebounding to about $3.59 after closing the prior session at $2.87. The rally marks a sharp technical bounce after a multi-session selloff that had wiped out more than half the stock's value in roughly a week. No single company-specific news release appears to have triggered the move, pointing to an oversold rebound and short-covering rather than a fresh fundamental catalyst. Volume was elevated, and the stock's high beta of roughly 2.05 amplified the move relative to the broader biotech complex. $CANF $ICU $GNPX $MLEC