The Trade Desk ( TTD 1.04% ) , a former highflying digital advertising disruptor, has fallen on hard times this year.

Just how hard? The former market darling is neck and neck with financial stock Fiserv as the worst-performing stock in the S&P 500 Index in 2025, having shed 66.2% of its value this year through Dec. 9.

A decline like that could portend longer-term secular problems, but could also signal a buying opportunity. So, which is it for the Trade Desk? Let's dig in. Expand

NASDAQ : TTD The Trade Desk Today's Change ( -1.04 %) $ -0.39 Current Price $ 36.63

Key Data Points Market Cap $18B Day's Range $ 36.52 - $ 37.82 52wk Range $ 36.51 - $ 136.42 Volume 456K Avg Vol 14M Gross Margin 78.81 %

2025 problems emerged early

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