2 outlets▲ Positive
CAS sends Nifty soaring 300 points in a minute to breach 23,000 on expiry day
SEBI moved higher.
6 Oct 2026 · Economic Times Markets, ET Stocks
Nifty surged more than 300 points in less than a minute during Tuesday’s closing auction session, briefly crossing 23,000 before paring gains. The sharp swings have renewed concerns over CAS volatility on expiry days, even as Sebi considers changes to derivatives settlement rules. Jefferies sees signs of recovery in options volumes.
The analysis
Because the driver here is macro rather than company-specific, the read-through is to index-level positioning rather than to any single name — correlations tend to rise when the whole market faces the same signal.
Why it matters
- With SEBI involved, this carries a regulatory dimension that can outlast the immediate market reaction.
Market context
- This is a market-wide development — its reach goes beyond any single stock.
- The immediate tone of coverage reads positive.