KEY POINTS
  • The Leuthold Group chief investment strategist sees similar warning signs in today's tech sector that led to the early 2000 bust.
  • "I just wonder if it might end similarly," he says. "Not to the same magnitude, but similarly."
  • Paulsen advises investors who want to be in tech to "do it in small- and mid-cap stocks as opposed to the popular FAANG names."

Warning signs in today's tech sector are reminiscent of the dotcom boom of the late 1990s that eventually went bust, market veteran Jim Paulsen told CNBC on Friday.

The current "character and attitude of the marketplace" are similar to the belief then that "tech can't lose," said the chief investment strategist at The Leuthold Group.