The rise of “opt-in” inventory media buys offered by agencies presents an opportunity for advertisers to reduce their media spend – but at what cost?

This guide outlines the complexities of this model, where agencies act as principals in media transactions, often leading to non-disclosure arrangements that obscure true costs. While clients may benefit from lower prices, they risk losing visibility into how their media budgets are managed and the potential for profit skimming by agencies.

This guide explores:

  • the implications of opting into non-disclosed inventory media on transparency, risk and accountability
  • how trading unit operations in media agencies operate to secure inventory at reduced cost
  • best practices for engaging in opt-in buys to safeguard your interests in an increasingly opaque marketplace