MediaCo Holding shares surge 32.54% after-hours after launching Sigma Audio Networks to scale national multicultural ad reach.

MediaCo Holding surged 32.54% in after-hours trading following the announcement of Sigma Audio Networks LLC, a national multicultural audio network designed to streamline advertising for diverse audiences. The initiative leverages MediaCo's established reach in Hispanic, Black, and bicultural communities through its flagship stations and brands, addressing longstanding fragmentation in audio advertising. By consolidating premium programming, digital audio, and live experiences into a scalable platform, the network aligns with modern agency workflows and offers advertisers efficient access to growing demographics. The move underscores MediaCo's strategic pivot to capitalize on the U.S. media landscape's increasing diversity, positioning it as a leader in culturally relevant, national-scale audio solutions.