Take care of yourself while trading. Charles Harris, portfolio manager at O’Neil Global Advisors, joins Investor’s Business Daily’s “Investing with IBD” podcast to talk about why learning which rules you’re breaking is less important than learning why you’re breaking them. See why being overconcentrated and overleveraged are dangerous when combined, and why he sees new high ground being made in names like Duolingo (DUOL) and Toll Brothers (TOL).

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