NEW YORK (TheStreet) -- "Every time we have ever had just a little bit of talk about a trader tax, it has caused people to just run out of the theater," said Jim Cramer on Wednesday's "Stop Trading!" segment on CNBC. "We don't need that right now."

Cramer turned to tech stocks such as


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. "These stocks are not done," he said. "They're just not done."

He said he agrees with Xilinx's CEO that this quarter will be better, and F5, which has been heading higher, is "part of the mobile Internet" phenomenon.

As for


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, which held a product launch event today, Cramer said he's always recommended the same thing: "You buy Apple up until its announcement, and then you sell it right before the announcement."

"This time's no different," he said. "There's always been a decline after it. It's no secret." He recommended buying Apple three days after its announcement, on Friday.

-- Written by Rebecca Corvino in New York.