Stocks are set for a make-or-break week as earnings and economic data flood in, including GDP, PCE, and jobs numbers. The S&P 500 (SPX) is testing a key resistance level around $5575 amid a volatile April, and Kevin Green says a close above that level on strong volume could give bulls more confidence in a rally. Meanwhile, Boeing (BA) shares are up after an upgrade from Bernstein, which sees the company making progress on its 787 program and improving its business.