It is proposed that, for standardized stress testing using historical scenarios, the applicable Z-Score for capping extreme price movements over a 15-year look- back period be reduced from 10 to 5, aligning stress tests with ‘extreme but plausible’ market conditions. Further, the existing requirement to maintain SGF coverage equal to 50% of credit exposure arising from the default of all clearing members is be removed. The clearing corporations would calculate SGF coverage based on the simultaneous default of at least three clearing members and their associates, generating the highest credit exposure. The comments/ feedback from stakeholders is invited.