Abstract: A computer-implemented method for optimizing publisher profits in online advertising based on real market movements is provided. The method may include dividing an advertisement (ad) placement for an ad unit into a plurality of levels. The method may also include generating a plurality of variables that are configured to test for the real market movements between levels. The method may further include processing ad impressions based on the plurality of variables within a time period to evaluate the real market movements for the ad unit, and determining whether to adjust one or more of the minimum floor prices based on a score for each variable calculated within the time period.