This is an announcement for the paper "Extrapolation of vector valued rearrangment operators II" by Paul F. X. Mueller. Abstract: We determine the extrapolation law for rearrangement operators of the Haar system on vector valued Hardy spaces. Archive classification: math.FA Mathematics Subject Classification: 46B42, 46B70, 47B37 The source file(s), pfxm_2009.bbl: 3113 bytes The paper may be downloaded from the archive by web browser from URL http://front.math.ucdavis.edu/0902.1330 or http://arXiv.org/abs/0902.1330 or by email in unzipped form by transmitting an empty message with subject line uget 0902.1330 or in gzipped form by using subject line get 0902.1330 to: math@arXiv.org.