According to CNBC, Meta's Muse agent overtook ChatGPT as the leading free iOS app on Friday after the launch of Meta's new AI model, helping push the Nasdaq to a fresh record high on Monday. Meta shares logged their best day in more than a year, and the stock has risen more than 20% since details of the AI assistant were released. The broader Magnificent Seven group also moved higher, with the Roundhill Magnificent Seven ETF hitting a record level for a second straight session.