(Bloomberg) -- Amrize Ltd.’s shares fell in Switzerland following the North American cement-maker’s spinoff from Holcim Ltd, as the building materials conglomerate looks to unlock value through a separate listing.Most Read from BloombergBezos Wedding Draws Protests, Soul-Searching Over Tourism in VeniceOne Architect’s Quest to Save Mumbai’s Heritage From DisappearingNYC Congestion Toll Cuts Manhattan Gridlock by 25%, RPA ReportsShares in the US cement-maker were down 13% to 40.3 Swiss francs ($4