Top investor buys Twitter, dumps Apple

Damien Meyer | AFP | Getty Images

Prominent technology investor Kevin Landis bought shares of Twitter on Thursday for his "Squawk Box" model portfolio, a contrarian move he believes will pay off.

So far this year, Landis' picks for the CNBC Pro competition have netted a gain of 14 percent, compared with a loss of 5 percent for the S&P 500.

Here's why the investor thinks Twitter has more potential than Apple: