TICK vs SMH and NDX - One Month and Six Month Charts: > > > 6 Month Charts: > > > NYSE TICK ($TICK, which measures upticks minus downticks on the New York Stock Exchange. Shown on these charts are closing numbers only. High numbers show heavy unabated buying at the close as opposed to low numbers which indicate unabated heavy selling. The theory is that when too many people are afraid to either hold stocks or not being holding stocks that the market may soon reverse direction.