A Zweig Breadth Thrust buy signal has only triggered six times in the last 20 years. Are we headed for a 7th?https://t.co/5Wu6XRll09 pic.twitter.com/DtkCh0NXY0 — David Keller, CMT (@DKellerCMT) March 31, 2020 Todayβs Chart of the Day was shared on Twitter by David Keller (@DKellerCMT). It’s a chart of the S&P 500 over the past 20-years, […]