How Market Floor delivers more competitive bids through Index (Beta)

Media Owners
Last Updated: April 30, 2026

When Index Exchange (Index) sends bid requests to DSPs, we pass machine learning-based pricing signals to help DSPs submit more winning bids. To determine these signals, we use a feature called Market FloorClosed A pricing control used by media owners and exchanges to set a minimum sale price on inventory..

Market Floor analyzes historical data to determine optimal bid prices, then passes them to DSPs to make sure they submit bids that are able to compete. If the Market Floor is higher than a Media Owner's Index UIClosed The Index UI at app.indexexchange.com that allows you to manage integration settings, such as inventory, campaign, and deal settings. floor settings or the floor that the Media Owner sends us in their bid requestClosed An OpenRTB request that is sent from a supply-side platform (SSP) or ad exchange to the DSP requesting a bid response for potential impressions. A bid request contains information about the impression that allows the DSP to decide whether to bid on the impression., we send the Market Floor value to DSPs so they can bid more strategically. For more information about floors, see How floors work in the Index auction.

For Media Owners, Market Floor provides several key advantages:

  • Market Floor works alongside other floors that Media Owners have set. Since the highest value is always chosen, we never submit a bid below a Media Owner's set floors.

  • Market Floor improves Index's ability to send DSPs a competitive bid that has a higher chance of winning a final auction.

  • Market Floor predicts the floors that Media Owners have set downstream or in an ad serverClosed A platform that manages, stores, and delivers advertisements to a publisher's site., so we are able to pre-empt bids that would have had no chance of winning. This makes supply more efficient to DSPs.