Watch: Behavioral finance says sell Netflix

Netflix app on a mobile phone
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CNBC "Halftime Report" trader Josh Brown joined CNBC Pro in a special Q&A to address investment questions from subscribers. He trades Netflix, Alphabet and more. Watch the highlights below.

Josh Brown, CEO of Ritholtz Wealth Management, says investors should watch out if hot momentum name Netflix keeps falling because it may be a while before the selling stops.

One reason for that theory relates to behavioral finance, which holds that investors are least inclined to sell well-performing stocks with $100 price tags like Netflix because they don't want to buy these shares back at those high prices if the bull market resumes.