(Bloomberg) -- UBS Asset Management is focusing on improving infrastructure investments it already owns as the weakest dealmaking environment in a decade limits opportunities to buy new assets.Most Read from BloombergRussia Downs Drones Over Moscow in Ukrainian Retaliatory StrikeChina Says Multiple Pathogens Are Behind Spike in Respiratory IllnessesSodium in Batteries: Shift May Herald Another ShakeupIsrael, Hamas Look to Extend Truce After More Hostages Are FreedMarkets Cheer as Milei Drops Dol