The Trade Desk’s redefinition of supply paths ripples across ad tech

In ad tech, labels aren’t just cosmetic. They define how the market sees itself. The Trade Desk’s latest turn shows just how much weight a name can carry. 

For years, SSPs were cast as the critical pipes carrying publisher inventory into demand platforms. Now, The Trade Desk has decided those pipes are just resellers — middlemen moving ad inventory at arm’s length rather than direct conduits between buyers and sellers.

Earlier this month, it made that reclassification official. 

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