Abstract: In this talk, I will discuss how the dark matter-baryon coincidence, namely the observation that the dark matter abundance is about five times the baryon abundance, can be explained if dark matter is a novel macroscopic baryonic state: baryoid. Starting from a spontaneously broken Z_N symmetry, the universe is divided into roughly equal numbers of domains occupying one of the N-fold degenerate vacua, leading to an approximate (N−1):1 baryon-abundance ratio between the false- and true-vacuum domains. Once the degeneracy is lifted by a QCD-triggered bias potential, the domain walls begin to collapse. Because baryons have reduced masses in the false-vacuum domains, they are efficiently trapped within the shrinking false-vacuum regions during non-relativistic domain-wall collapse, eventually forming stable baryoids. We show that this mechanism can successfully explain the dark matter-baryon coincidence and discuss potential experimental searches