Shares of Central Depository Services (India) Ltd. (CDSL) slipped into the red after early gains on Thursday, ending marginally lower at ₹1,580 despite climbing above ₹1,609 earlier in the session. The reversal came as remarks from SEBI Chairman Tuhin Kanta Pandey kept investor sentiment cautious across market infrastructure firms.

Pandey said the regulator is considering ways to increase the tenure and maturity of equity derivative contracts, a step aimed at curbing speculative frenzy in the fast-growing segment. SEBI has already raised lot sizes and capped contract expiries to make retail-driven trades more expensive, and fresh reforms could further alter market dynamics.

Brokerages, exchanges, and depositories like CDSL, which benefit indirectly from trading activity, came under pressure. While BSE Ltd. and Angel One were among the bigger losers, CDSL also saw profit booking after spiking intraday.

The stock has surged sharply over the past year, hitting a 52-week high of ₹1,989, but Thursday’s trading action showed how sensitive market infrastructure firms remain to regulatory commentary. Investors are now awaiting more clarity on SEBI’s next steps before taking fresh positions.