Update: McClellan Summation Index ($NYSI) Did you pay attention back on March 5th? Since then, $NYSI, the swing trend indicator, has collapsed, pul...

Published Mar 19, 2026Updated Mar 19, 20262 min read

Update: McClellan Summation Index ($NYSI)

Did you pay attention back on March 5th? Since then, $NYSI, the swing trend indicator, has collapsed, pulling the stock market down with it.