PSA 10s of the 2018 Topps Chrome #150 Refractor have traded in a $1,070–$1,310 range over the trailing 30 days, with a median around $1,240 across 11 A-quality sales. Volume has been flat-to-slightly-up, while the 30d price move sits around +22%. Pop has grown ~2% in 30 days — supply expansion is modest. Heads up: data thins out when you exclude best-offer prints.