Published on 20 Dec 2022 on Simply Wall St. via Yahoo Finance

DermTech (NASDAQ:DMTK investor one-year losses grow to 89% as the stock sheds US$8.8m this past week

Even the best investor on earth makes unsuccessful investments. But it should be a priority to avoid stomach churning catastrophes, wherever possible. So we hope that those who held DermTech, Inc. (NASDAQ:DMTK) during the last year don't lose the lesson, in addition to the 89% hit to the value of their shares. A loss like this is a stark reminder that portfolio diversification is important. Notably, shareholders had a tough run over the longer term, too, with a drop of 85% in the last three years. Shareholders have had an even rougher run lately, with the share price down 57% in the last 90 days. We really hope anyone holding through that price crash has a diversified portfolio. Even when you lose money, you don't have to lose the lesson.

Since DermTech has shed US$8.8m from its value in the past 7 days, let's see if the longer term decline has been driven by the business' economics.

See our latest analysis for DermTech