The stock market continued to recover with good breadth: 2114 stocks advanced compared to 759 that closed down. Models based on prices have to turn up now to confirm that a bottom is in place, systematic traders and hedge funds managers are certainly getting a bit nervous with their short positions and are waiting a signal from their trading models to push the button and add buying pressure. The weekly sentiment survey among professional portfolio managers stands at the lowest level since last fall, a sign that this category of market participants has become cautious compared to the euphoria that reigned on the markets at the beginning of the year.