The posting of this week's Week Ahead Magazine is a day late. I was traveling in Chicago with my wife visiting our son recently transferred there with his company. As an aside we had a fantastic Italian meal at Riccardo Trattoria in Lincoln Park. I would say the focus of this week's article links center around the market's valuation and investor sentiment. Coinciding with some elevated sentiment measures is the level of margin debt. An interesting Bloomberg article is linked to in the magazine comparing margin debt as a percentage of GDP.