Jim Cramer says that even though tech stocks are "so great," you shouldn't have more than 20% of your portfolio in them.

TheStreet's founder said during an exclusive conference call with members of his Action Alerts PLUS club for investors that he certainly understands how valuable tech stocks can be. After all, he's the guy who coined the term "FANG" to represent Facebook (FB) , Amazon (AMZN) , Netflix (NFLX) and Alphabet/Google (GOOG) , (GOOGL) .

But Cramer warned that investors who put more than 20% of their portfolios into tech are "too hostage to group that could go down big on one big miss. How did people feel [Wednesday] morning when Netflix was down $7?"

Want to join in on Jim's monthly conference calls? Click here for a free 14-day trial subscription to Action Alerts PLUS and hear all of the latest call, plus get e-mails before Jim makes any trade and enjoy lots of other exclusive material.

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Action Alerts PLUS, which Cramer co-manages as a charitable trust, is long FB and GOOGL.

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