Stagezero Life Sciences Ltd. (GNWSF: Grey Market) | Tier Change Sat, Oct 24, 2020 12:00 - Stagezero Life Sciences Ltd. ( GNWSF : Grey Market) - Tier Change - The symbol, GNWSF, no longer is classified as Pink Current. As of Sat, Oct 24, 2020, GNWSF resides in the Grey Market tier. You may find a complete list of tier changes at otcmarkets.com .