Comcast (NASDAQ:CMCSA), a broadband, cable, streaming, studios, and theme parks provider, closed at $22.43, down 1.15%. Investors are weighing an energy-efficiency win and stake trim, while watching July 23 results for broadband trends and Peacock.The company’s trading volume reached roughly 63.5M shares, which is about 86% above its three-month average of 34.1M shares.How the markets moved todayThe S&P 500 (SNPINDEX:^GSPC) rose 1.08% to 7,500.5…