Single stock futures risk framework: cash settlement, portfolio based margining, and multi tier position limits required for market integrity. Regulatory introduction of Single Stock Futures mandates prior approval, initial cash settlement, and parity of lot size/multiplier with corresponding options. A portfolio based margining regime measures worst scenario loss across a client's combined derivative positions, with specified scan ranges and minimum initial margin floors enforced by adjustment of scan parameters where necessary. Calendar spread charges and multi tier exposure and position limits (client, member, market) must be implemented, alongside staged client identification systems, frequent intraday scenario updates for margin computation, prescribed closing price methodologies, and comprehensive exchange submissions for approval.