The summation indexes built by Sherman and Marian McClellan are almost paradoxical this week. The $NYSI and the $NASI usually track similarly.
Which one will be right? Here is the chart.
In Plot 1, the candlesticks are the $NYSI – New York Stock Exchange Summation Index and displayed behind on an area chart is the $SPX.
In Plot 2, the candlesticks are the $NASI – Nasdaq Stock Exchange Summation Index and displayed behind on an area chart is the $NDX.