Companies Reporting Before The Bell• NAPCO Security Techs (NASDAQ:NSSC) is estimated to report quarterly earnings at $0.26 per share on revenue of $43.92 million. • Affiliated Managers Group (NYSE:AMG) is projected to report quarterly earnings at $5.98 per share on revenue of $524.15 million. • Sphere Entertainment (NYSE:SPHR) is expected to report quarterly loss at $0.85 per share on revenue of $300.23 million. • Bowlero (NYSE:BOWL) is estimated to report quarterly earnings at $0.12 per share on revenue of $300.52 million. • ON Semiconductor (NASDAQ:ON) is estimated to report quarterly earnin…