The stock market rebounded sharply and prices accelerated towards the close of the session with strong breadth: 3222 stocks advanced compared to 768 that settled down. We may well imagine that short sellers were active, buying agressively stocks or futures they sold last week. Following our previous comment, there is a good chance that the lowest boundary of a large trading range has been set up and the only certainty is that volatility is still going to be the name of the game.