March has been a pretty incredible month so far. As of yesterday's close, the Dow and the S&P 500 are both up more than 20% since the March 9 low. The TSX has rallied 19%. A 5% pull back here would be healthy and welcome as an opportunity to quell over-exuberance. Whether this will happen of course remains to be seen. We should remember that a healthy market climbs a wall of worry in fits and starts. Straight up or straight down are not sustainable trends either way.