Breakfast briefing: Monday, June 29

MarketWatch: Anxiety about Greece may keep Wall Street on edge early this week, as the country moves toward what was once thought unthinkable: a default and a full exit from the euro zone. While European markets are braced for a wave of contagion from Greece today, as a result of a possible "Grexit" that most had still assumed was unlikely as late as Friday afternoon, the effect on US markets is expected to be bumpy, but not as dramatic as in Europe. The US equity market will probably see some volatility today, but safeguards against contagion introduced since 2010, when the possibility of a Greek default first shook markets, has many expecting only modest losses in U.S. stocks.- Reuters