# Sebi chief says no closing auction manipulation, seeks higher participation 2026-08-12T23:55:24+00:00 | Governance | Indian Opinion Desk Corroboration: 2 independent outlets Sebi chairman Tuhin Kanta Pandey said on Wednesday that the regulator has not observed any manipulation in the new closing auction sessions (CAS) introduced on August 3. He attributed the sharp divergence between Nifty and Sensex on the first day to low participation. Mutual fund participation in CAS has risen from 5-7% to about 25%, and Sebi is considering inputs to boost overall involvement. Pandey also flagged continuing losses among retail options traders, especially on expiry days, and said Sebi is preparing a detailed analytical report. On commodity derivatives, Sebi has proposed allowing FPIs and mutual funds, and approached the GST Council to simplify taxation of physical deliveries under an IGST model. ## Coverage - livemint.com - economictimes.indiatimes.com Tags: closing auction, liquidity, manipulation, SEBI, stock market, Tuhin Kanta Pandey Canonical: https://indianopinion.org/sebi-chief-says-no-manipulation-seen-in-closing-stock-auctions-yet/ License: Summary and commentary (c) Indian Opinion, reusable with attribution. Facts belong to the linked sources. Cite: https://indianopinion.org/sebi-chief-says-no-manipulation-seen-in-closing-stock-auctions-yet/#story-in-brief Review state: restored archive article, accurate at time of publication, not offered to search indexes.