"A distribution day occurs when one of the major indexes falls on heavier trading than in the prior session. Three to five distribution days in a span of a couple of weeks should make investors wary and consider raising cash." Keeping track of the distribution day count is crucial in helping you time your buys & sells. The Big Picture column in IBD can tell you the count, but they don't show which days count and which don't. Follow my blog and I'll update the charts when new days get added or fall off.