Real Estate and IT Shares Lead Decline as Derivative Rules Cause Turbulence

The market’s reversal was amplified by the implementation of a new system to determine the closing price of futures and options for weekly expiries. Traders experienced unusual price swings, indicating that the mechanism is not yet functioning as intended. The heightened volatility primarily affected participants holding positions in derivative contracts, especially retail investors who were forced to unwind or close positions within a tight 15‑minute blind‑closing window.

Analysts describe the situation as a technical and operational teething problem for the exchanges. While the disruption is confined to F&O‑linked stocks and key indices, it is not considered a systemic or fundamental weakness. Regulators and exchanges are expected to address the glitches, and the impact is likely to subside as the system stabilises.