The premise in the g'parent comment is "If most such stars are still within the Galactic groups ...". This assumption is reasonable given the hypothesis express

The premise in the g'parent comment is "If most such stars are still within the Galactic groups ...". This assumption is reasonable given the hypothesis expressed in the article: "Bock suspects that a lot of these renegade stars could have come from relatively lightweight galaxies, which can lose hold of their stars more easily than more massive galaxies." Our Local Group has a diameter of ~10 megalight-years . Andromeda is 2.54 MLy away. Thus, given the premise, and assuming that our own cluster is "typical", it's unlikely that a renegade star is all that much further from a galaxy like ours or Andromeda than we are from Andromeda.