On 12^th December, 2022, VSD adjusted the minimum IM rate from 13% to 17% applied from 15th December 2022. VSD has announced this adjustment on VSD's website before applying as regulated, and at the same time notified clearing members and Hanoi Stock Exchange.
The IM rate adjustment is executed on the basis of SSC’s approval and calculation results of IM rate for VN30 index future contracts periodically determined by VSD in accordance with VSD’s Guideline on clearing and settlement of deravatives transactions. Specifically, according to the latest calculation on 12^th December 2022, the IM rate determining range (basing on VaR) is within the range from 8.4% to 18.3%. Thus, the selection of a new IM rate for future contracts of VN30 index of 17% is within the prescribed calculation range and the new IM rate will help clearing and settlement activities for future contracts of VN30 index of the market become safer than the IM rate of 13% currently applied.

On the basis of the new IM rate announced by VSD, clearing members will be responsible for adjusting the IM rate applied at each member to ensure that it is not lower than that regulated by VSD. To ensure safe and smoot adjustment from 15th December 2022, VSD has requested clearing members to review and recalculate the margin requirement (corresponding to the IM rate of 17%) on each investor's account opened at member to request margin call (if any) and avoid violation of collateral using rate.
As for the IM rate of Government-bond future contracts, VSD continues to maintain the current rate of 2.5%.