Block posted its best quarterly net income since going public in 2015. Stocks have surged higher over the past year-and-a-half, and the S&P 500 index is firmly in a bull market that began in October 2022. Despite the run-up in the broader market index, excellent investing opportunities exist today. Block (SQ -2.58%) is one stock that is an intriguing opportunity for investors. The company is improving its efficiency and gross profit, and has made solid progress on these goals early this year. However, feder ...