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SEBI ReportPublished 23 Aug 2026Read time 1 minEffective 13 Aug 2026

SEBI Cracks Down on Manipulative Trading at BSE on Expiry Day

SEBI issued an emergency order against manipulative trades on SENSEX expiry day.

Impact
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For information only. Not financial advice. Verify with official sources before taking any action.

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What happened

SEBI issued an emergency interim order against parties who allegedly manipulated trades during the Call Auction Session (CAS) on the day SENSEX options contracts expired at BSE on August 13, 2026. A Call Auction Session is a special window at the start or end of trading where orders are collected and matched at once, rather than continuously. SEBI acted without first hearing the accused — called an 'ex-parte' order — meaning the threat was considered serious enough to act immediately.

Why it matters

Manipulation during expiry sessions can distort the final settlement prices of derivatives contracts, which are financial products whose value is linked to an index like SENSEX. This can cause unfair losses for ordinary investors whose positions get settled at artificial prices. SEBI regularly monitors such sessions to protect market integrity.

What to check

  • →Check if you had any open SENSEX options or futures positions at BSE that expired on August 13, 2026.
  • →Look at your broker statement to see the settlement price used for any expired contracts on that date.
  • →Find out if your broker has sent any communication about unusual settlement outcomes on August 13, 2026.
  • →Ask your broker or financial platform whether any trades in your account were flagged or affected by this order.
  • →Consider visiting SEBI's official website at sebi.gov.in to read the full order if you traded SENSEX derivatives around that date.

This is general information, not financial advice. Check your own position with your lender or an adviser.

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