SENSEX Expiry Rigged? Your F&O Trades at Risk

SEBI has issued an emergency interim order against traders who allegedly manipulated SENSEX prices during the Closing Auction Session on expiry day at BSE. If you trade F&O or index funds, your returns may have been quietly drained by this rigging.

Here's what happened: SEBI issued an emergency ex-parte interim order against entities allegedly manipulating SENSEX prices during the Closing Auction Session (CAS) on BSE expiry days.. An ex-parte order means SEBI acted immediately without giving the accused a prior hearing — used only when market harm is considered urgent and ongoing.. The manipulation targeted the CAS window — the final settlement price-fixing period that directly determines payouts on SENSEX F&O contracts..

What you should do: Check your BSE SENSEX F&O trade history on recent expiry dates — if your options expired far out-of-the-money unexpectedly, note the dates for reference once SEBI's full order is public.. Avoid taking large naked positions on SENSEX expiry day at BSE until SEBI's investigation concludes and exchange safeguards are confirmed restored.. Follow SEBI's official orders page for the final ruling — if specific expiry dates are named, you may have grounds to flag a grievance through SEBI's SCORES portal..

Pro tip: SEBI's SCORES portal (scores.sebi.gov.in) lets retail investors file complaints against market manipulation — you don't need a lawyer to raise a formal grievance.

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