SEBI has reduced the Z-score threshold for commodity derivatives stress testing from 10 to 5, effective immediately. This adjustment to the Core Settlement Guarantee Fund (Core SGF) framework aims to lower capital requirements for clearing corporations and improve ease of doing business by making risk assessments more realistic.
The Securities and Exchange Board of India (SEBI) has revised its risk management framework for the commodity derivatives market. Effective immediately, the regulator has lowered the Z-score threshold used for stress testing from 10 to 5. This change is specifically designed to update how clearing corporations assess market risks and determine the required size of their Core Settlement Guarantee Fund (Core SGF).
The Z-score is a statistical measure used to gauge how far a price movement deviates from its historical average. In the context of risk management, it helps clearing houses determine the probability of extreme market fluctuations. Previously, a threshold of 10 meant that clearing corporations had to maintain capital buffers to protect against extremely rare and severe price swings. By capping these extreme movements at a Z-score of 5, the regulator is acknowledging that the previous requirement was likely too conservative for modern market conditions.
This move is expected to improve capital efficiency for clearing corporations and market participants. When regulators require clearing houses to set aside large amounts of money for a guarantee fund, that capital is effectively locked away. By lowering the threshold to 5, SEBI is potentially reducing the amount of excess capital that must be parked in the Core SGF, thereby freeing up funds for other operational uses.
The adjustment follows feedback from various market participants who argued that the previous Z-score of 10 resulted in inflated stress scenarios that did not necessarily reflect plausible market risks. The revision aims to balance the need for systemic safety with the goal of fostering an easier environment for doing business.
From a risk perspective, this change does make the stress-testing framework materially less conservative. While the regulator has deemed this level appropriate, it essentially means the system is preparing for a narrower range of extreme historical price movements than it was before. Clearing corporations and regulators will likely continue to monitor systemic stability to ensure that the lower threshold remains sufficient to protect the market against sudden, high-volatility events.
Investors and market participants may now monitor whether this change leads to improved capital utilization for clearing entities and whether it has any impact on the overall operational costs within the commodity derivatives segment. The focus remains on maintaining a balance between efficient capital usage and ensuring that the settlement guarantee mechanism can still handle market shocks effectively.