Why Trade Desk Stock Lost 52% in the First Half of 2026
The Trade Desk lost more than half its value in six months. Here's what happened and what investors should watch next.
Overview
Shares of Trade Desk (NASDAQ: TTD) fell 52.4% in the first half of 2026, according to data from S&P Global Market Intelligence. The digital advertising platform faced a combination of slowing growth, executive turnover, and a public dispute with one of its largest partners.
Trade Desk kicked off 2026 with a February earnings report that beat revenue estimates but came with the kind of guidance targets no investor wanted to hear. Management projected a sharp slowdown in Q1 growth, and many shareholders headed for the exits in a hurry.
Details
Then came the Publicis problem. In March, advertising giant Publicis Groupe (OTC: PUBGY) pulled its recommendation of Trade Desk after an audit alleged the company had been stacking fees in ways that didn't match contractual terms. Trade Desk disputed the findings, but the fallout contributed to reduced ad spending and soft Q2 guidance in May.
Source
Originally published at www.fool.com.