The tech sector has been a standout so far in 2017, with the Technology Select Sector SPDR Fund (XLK) rallying more than 20% from the start of the year to a 52-week high on Monday. It’s also been strong this earnings season, outperforming all other groups with 69% of its companies beating estimates. However, tech stocks’ day-after performances tell a different story.Today, I’d like to talk about two tech stocks you should keep your distance from.

If you’ve seen me on television or attended one of my investing presentations, you’ve probably seen me get a little animated at times. I can’t help it when the discussion involves something I’m passionate about, and helping investors avoid the mistakes I see them making is one of them. I get so riled up because these missteps are completely preventable. I also get angry because a lot of it is not the individual investors’ fault. I don’t want you to be hurt by these mistakes, so this week I am sharing the two that I consider the biggest and most harmful.