As per the Securities market risk parameters methodology, on 09.11.2020, 10-28 (MSK) the lower bound of the price band (up to 20330) and initial margins (up to 29.75 %) for the security BIIB-RM were changed. New values are available here
FTSE Mondo Visione Exchanges Index:
Moscow Exchange: Risk Parameters Change For The Security BIIB-RM - Update
Date 09/11/2020