Risk Parameters Change for 5 Securities, 35% to 77%
Summary
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.
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GovPing monitors Moscow Exchange for new securities & markets regulatory changes. Every update since tracking began is archived, classified, and available as free RSS or email alerts — 11 changes logged to date.
What changed
MOEX has increased the downward IR risk parameter (SEC Δ_1 Y0/Y1) from 35% to 77% for five securities (ASTR, POSI, OZPH, YDEX, HNFG). The effective dates are staggered: ASTR and POSI begin April 23; OZPH and YDEX begin April 24; HNFG begins April 27. Each security has a defined window (one to four business days) during which the new parameter applies.
Market participants holding positions in these securities should account for higher margin or collateral requirements during the applicable periods. Clearing members and brokers active on MOEX may need to adjust risk models or pre-fund accounts to accommodate the elevated parameters.
Archived snapshot
Apr 22, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
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Newsroom Events calendar Subscription management Subscription Print version 22.04.2026 17:23
Risk Parameters Change for the Securities
The following risk parameters will be changed:
| Ticker | IR risk (downward scenario) - SEC Δ_1 (Y0/Y1) | | New value effective for |
| Current value | New value |
| ASTR | 35% | 77% | 23.04.2026 - 27.04.2026 |
| POSI | 35% | 77% | 23.04.2026 - 24.04.2026 |
| OZPH | 35% | 77% | 24.04.2026 - 27.04.2026 |
| YDEX | 35% | 77% | 24.04.2026 - 27.04.2026 |
| HNFG | 35% | 77% | 27.04.2026 - 28.04.2026 |
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