Photo: Shankar S/Flickr (CC BY 2.0).

The stock market just finished an up-and-down kind of week. The major indexes took a quick dip early in the week but ended up on a modestly positive note; The charts showed gains between 0.4% and 1% between Monday morning and Friday night.

But some tech stocks missed that mildly rosy finished and plunged by double-digit percentages instead.

This is their story.

Remote healthcare operator Teladoc (NYSE:TDOC) lost a major customer on Friday, immediately triggering a 19.5% loss for the week. Cloud-based security and storage vendor Barracuda Networks (NYSE:CUDA) published a pretty decent quarterly report on Tuesday, but weak forward guidance led to a 29% haircut. And specialized communications infrastructure vendor Comtech Telecommunications (NASDAQ:CMTL) plunged 18.5% because of a downright disappointing fourth-quarter report.

Want to dig deeper into these recently underperforming tech stocks? Start with the slideshow below:

Anders Bylund has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.