The Nasdaq has 'a lot of unwind' left to go as tech stocks sell off, says chart analyst

Analysts working at the Nasdaq.
Adam Jeffery | CNBC

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The Nasdaq Composite's sell-off Thursday could be the beginning of a more significant pullback for the tech-heavy index, according to technical analyst Jonathan Krinsky.

"The Nasdaq is up 17% since June 11, so there's a lot of unwind that's still left to go and we think today is probably, certainly, the start of that," the chief market technician at Bay Crest Partners said on CNBC's "Halftime Report."