It was a bad day and a bad week for most tech stocks. Not Apple though.

-- The iPhone maker's stock was up 0.4% Friday and 2% this week, the only stock in the green for both periods among the so-called Mag-7 growth stocks. Apple also hit $5 trillion in market cap this week, and is inching closer to the world's most valuable company, Nvidia.

Part of this is tech's version of a safety trade. When investors are worried about AI, they flock to the perceived safety of Apple shares.