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Risk Parameters Change for 5 Securities, 35% to 77%

MOEX is changing the downward IR risk parameter (SEC Δ_1 Y0/Y1) for five securities — ASTR, POSI, OZPH, YDEX, and HNFG — from 35% to 77%. The new parameter values take effect on staggered dates between April 23 and April 28, 2026, with effective windows ranging from one to four business days per security. This represents a significant increase in the risk weight applied to these securities.