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What should you keep in mind during CAS?
- Relying on stop-loss orders: They get cancelled automatically before CAS starts, leaving your trades unprotected.
- Waiting for old intraday (MIS) cutoffs: Intraday positions in CAS stocks are squared off earlier than usual so check your new cutoff time here.
- Placing orders too far off the current price: Orders placed outside the allowed ±3% price range will be rejected instantly.
- Trying to time the last second: The auction ends randomly between 3:28 PM and 3:30 PM, so you can’t predict the exact final second.
- Expecting old F&O expiry rules: On expiry day, final settlement prices are set directly by the auction, not the old 30-minute average.
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