Why are certain customers pulling back on how much they're spending? Shares of advertising technology (adtech) company DoubleVerify Holdings (DV -39.63%) got crushed on Wednesday after the company reported quarterly financial results and reduced its full-year revenue guidance. As of noon ET, DoubleVerify stock was down a staggering 39%. Here's the real problem Financial results for the first quarter of 2024 weren't bad at all for DoubleVerify. Management expected revenue of $140 million, at best, for the qu ...