Regulations in Clearing & Settlement and Risk Management

SEBI (Securities and Exchange Board of India) is the apex regulator that frames the legal provisions for clearing and settlement of equity derivatives under the Securities Contracts (Regulation) Act, 1956 and the SEBI (Derivatives) Regulations, 2023. SEBI delegates day‑to‑day operational authority to recognised clearing corporations such as NSE Clearing Ltd. and ICICI Securities Clearing Ltd., which act as central counterparties (CCPs).

The clearing corporation must be registered with SEBI under the Clearing Corporation Registration Guidelines. It is also required to comply with the SEBI (Risk Management) Regulations, which prescribe capital adequacy, default fund contribution, and stress‑testing standards. Failure to meet these norms can lead to penalties, suspension of clearing privileges, or even cancellation of registration.

For the exam, remember that SEBI is the ultimate authority, while the exchange‑run clearing houses implement the rules. Questions often ask you to match a regulation (e.g., “default fund requirement”) with the body that enforces it (SEBI vs. NSE).

• SEBI – policy maker, regulator, enforcer.
• NSE/ICEX Clearing Corporations – operational CCPs, execute netting, margin, settlement.

Once a trade is executed on the exchange, the trade details are transmitted to the clearing corporation within seconds. The first operational step is trade capture, where each trade is recorded with its price, quantity, and contract specifications.

The next step is multilateral netting. All buy and sell positions of the same contract are aggregated across participants, resulting in a net position for each member. Netting reduces the number of settlements and the total amount of cash and securities that need to be transferred.

After netting, the clearing house calculates the initial margin (to cover potential future exposure) and the variation margin (to settle daily price movements). These margins are communicated to members, who must post cash or securities by the stipulated deadline. Finally, the settlement engine performs the transfer of cash and underlying securities on the agreed settlement date (T+2).

The clearing corporation safeguards the market by demanding two types of margin. Initial Margin (IM) is a one‑time collateral posted at the time of trade entry. It is calculated using the SPAN (Standard Portfolio Analysis of Risk) methodology, which considers the worst‑case loss across a set of predefined market scenarios.

Variation Margin (VM) is a daily settlement amount that reflects the mark‑to‑market (MtM) change in the value of open positions. If a participant’s position loses value, they must transfer the VM to the clearing house; if it gains, they receive the VM.

Both margins are monitored in real time. If a participant’s collateral falls below the required level, the clearing house issues a margin call. Failure to meet the call results in forced liquidation of the participant’s positions to protect the CCP and other members.

Beyond margins, clearing houses maintain a Default Fund contributed by all members. This fund acts as a mutualized pool to absorb losses that exceed a defaulting member’s posted collateral. The size of the default fund is prescribed by SEBI and is typically a multiple of the aggregate initial margin.

Another safeguard is the Guarantee Fund, which is funded by the exchange itself and can be used in extreme stress scenarios. The clearing corporation also imposes position limits and exposure caps on members to prevent concentration risk.

Regular stress testing is mandatory. The clearing house must simulate extreme market moves (e.g., 30% drop in the NIFTY) and verify that the combined margins and default fund can cover the resulting losses. Exam questions may ask which mechanism provides the "first line of defence" – the answer is the Initial Margin.

SEBI mandates a T+2 settlement cycle for equity derivatives. This means that the cash and underlying securities must be transferred two business days after the trade date. The cycle starts after the trade is cleared and the net positions are finalised.

On the settlement day, the clearing house instructs the depository (NSDL/​CDSL) to move the underlying shares to the buyer’s demat account, while the buyer’s bank transfers the cash to the seller’s account. For cash‑settled contracts, only the cash transfer occurs.

Exam focus: Remember that the settlement date is calculated after the trade is cleared, not at the time of execution. A common mistake is to assume T+1, which is applicable only to certain cash‑settled securities in other jurisdictions.

The clearing corporation acts as a central counterparty through a process called novation. Once novated, the original buyer‑seller contract is replaced by two separate contracts: the clearing house vs. the buyer, and the clearing house vs. the seller. This eliminates direct counter‑party risk between market participants.

Novation also enables the mutualisation of risk. If a member defaults, the CCP uses the defaulting member’s margins, the default fund, and, if necessary, the guarantee fund to meet settlement obligations. This layered protection is a core exam topic.

Regulators require the CCP to publish its risk‑management framework, including the order of loss‑absorption: (1) Defaulting member’s collateral, (2) Default fund, (3) Guarantee fund, (4) Additional capital from the exchange.

All clearing members must submit daily position statements to SEBI through the Central Depository Services (CDSL/NSDL) portal. The statements include net positions, margin posted, and any breaches of limits.

In addition, clearing corporations file a monthly report with SEBI detailing the default fund balance, guarantee fund utilisation, and stress‑test results. Non‑compliance attracts monetary penalties and may lead to suspension of clearing privileges.

For the exam, remember the two reporting frequencies: daily (member‑level) and monthly (clearing‑house‑level). Questions may ask which report contains the "default fund balance" – the answer is the monthly clearing‑house report.