As per the Securities market risk parameters methodology, on 06.03.2020, 18-13 (MSK) the lower bound of the price band (up to 958.2) and initial margins (up to 52.5 %) for the security TCSG were changed. New values are available here
FTSE Mondo Visione Exchanges Index:
Moscow Exchange: Risk Parameters Change For The Security TCSG - Update 1
Date 06/03/2020