Polyfetish

AVNAds Publisher’s FAQ page explains how much you get paid for interstitial ads:

You will be paid at a rate 1 cent over the second highest bid.

My experience is that the amount you wind up earning can be several orders of magnitude less than the maximum bid.

So I always wind up cancelling interstitials. Considering the level of intrusiveness the few pennies aren’t worth it. Now if I collected something much closer to the max bid I’d keep running them.