UK's Big Yellow soars as Blackstone considers buyout
** British self-storage firm Big Yellow BYG.L soars 19.4% to 1,152p, highest since November 2024; top gainer across all London stocks ** Stock on track for biggest one-day pct climb ** Blackstone Europe considering cash offer for entire issue and to-be-issued share capital of BYG ** Blackstone Europe has until November 10 to announce offer intention ** YTD, BYG gains ~23% (Reporting by Nithyashree R B in Bengaluru) ((NithyashreeRB@thomsonreuters.com))