As big bank stocks Bank Of America (BAC) and JPMorgan Chase (JPM) near buy zones ahead of Q2 earnings, fellow financial sector play Morgan Stanley (MS) is also approaching a possible breakout. BofA is trying to close in on a 25.90 entry, while JP Morgan is just below a 94.08 buy point. Goldman Sachs (GS) and Wells Fargo (WFC) are also working on…