* 𝗡𝗦𝗘 𝗷𝘂𝘀𝘁 𝗰𝗵𝗮𝗻𝗴𝗲𝗱 𝗵𝗼𝘄 𝗙&𝗢 𝗼𝗽𝗲𝗻𝘀 𝗳𝗼𝗿𝗲𝘃𝗲𝗿.*
A 15-minute reform that will reshape trading behavior from Dec 8 2025.
𝗛𝗲𝗿𝗲’𝘀 𝘁𝗵𝗲 𝗯𝗿𝗲𝗮𝗸𝗱𝗼𝘄𝗻 𝗲𝘃𝗲𝗿𝘆 𝘁𝗿𝗮𝗱𝗲𝗿 𝗺𝘂𝘀𝘁 𝗿𝗲𝗮𝗱
*𝟭. 𝗧𝗵𝗲 𝗦𝗵𝗶𝗳𝘁*
For the first time ever, NSE will start a Pre-Open Session in the F&O segment.
9:00 – 9:15 AM.
A 15-minute auction before the market opens.
𝗧𝗵𝗶𝘀 𝗶𝘀 𝘄𝗵𝗲𝗿𝗲 𝘁𝗵𝗲 𝗿𝗲𝗮𝗹 𝗽𝗿𝗶𝗰𝗲 𝗱𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝘆 𝘄𝗶𝗹𝗹 𝗵𝗮𝗽𝗽𝗲𝗻 𝗯𝗲𝗳𝗼𝗿𝗲 𝘆𝗼𝘂 𝗲𝘃𝗲𝗻 𝗰𝗹𝗶𝗰𝗸 “𝗕𝘂𝘆”.
*𝟮. 𝗧𝗵𝗲 𝗧𝗶𝗺𝗲𝗹𝗶𝗻𝗲*
9:00 – 9:08 AM → Order entry, modify, cancel
9:08 – 9:12 AM → Order matching & trade confirmation
9:12 – 9:15 AM → Buffer before normal session
Your first trade at 9:15 AM will already have a discovered price behind it.
*𝟯. 𝗪𝗵𝗮𝘁’𝘀 𝗜𝗻𝗰𝗹𝘂𝗱𝗲𝗱*
Current-month futures (stocks + indices)
Next-month futures during the last 5 days before expiry
Not applicable to Options or Spread contracts
Skipped on corporate-action ex-dates
*𝟰. 𝗪𝗵𝘆 𝗜𝘁 𝗠𝗮𝘁𝘁𝗲𝗿𝘀*
Smoother opens → less volatility
Stronger liquidity → deeper order book
Transparent price discovery → fairer execution
F&O will finally open like global derivatives markets - clean, calculated, credible.
*𝟱. 𝗛𝗼𝘄 𝗜𝘁 𝗪𝗼𝗿𝗸𝘀*
* Orders collected in a call-auction pool
* Opening price = Equilibrium price where max volume executes
* Unmatched limit orders carry forward to the regular session
* No changes allowed during matching
𝗜𝗻 𝘀𝗵𝗼𝗿𝘁 → 𝘁𝗵𝗲 𝗼𝗽𝗲𝗻 𝘄𝗶𝗹𝗹 𝗯𝗲 𝗮𝘂𝗰𝘁𝗶𝗼𝗻-𝗱𝗿𝗶𝘃𝗲𝗻, 𝗻𝗼𝘁 𝗰𝗵𝗮𝗼𝘀-𝗱𝗿𝗶𝘃𝗲𝗻.
*𝟲. 𝗥𝗶𝘀𝗸 𝗖𝗼𝗻𝘁𝗿𝗼𝗹𝘀 𝗦𝘁𝗮𝘆 𝗧𝗶𝗴𝗵𝘁*
Margin validation before order acceptance
STPC (Self-Trade Prevention) active in pre-open
Limit & Market Price Protection recalibrated using equilibrium price
By: via AlliesFinServe #StockMarket #Bharat Telegram.me/AlliesFin
