DoubleVerify Holdings, Inc. (DV) stock experienced an 8.51% plunge in after-hours trading on Thursday, February 27th. The company reported Q4 revenue of $190.6 million, missing analysts' consensus estimate of $196.9 million.

The sharp after-hours sell-off was likely driven by investors' disappointment with DV's Q4 revenue performance, which fell short of expectations. Despite the company's solid full-year results, with 15% revenue growth, the missed Q4 revenue target appears to have weighed on investor sentiment.

However, it's worth noting that some analysts still consider DV undervalued based on cash flow estimates. According to reports, the stock is trading at a 48.8% discount to its estimated fair value, indicating potential for upside if the company can regain momentum and meet or exceed future revenue projections.