NSE India & BSE India Introduce Pre-Open Session in Equity Derivatives: What Traders Need to Know
On December 8, NSE India and BSE India introduced a Pre-Open Session for the Equity Derivatives segment. The twist is that not all expiries are eligible.
🔹 What’s Affected
- Index & Stock Futures (not Options)
- Pre-open applies to current-month contracts
- Next-month futures become eligible during the last five trading days of the current-month expiry
- The session is divided into three: Order Entry → Order Matching/Confirmation → Buffer Period
🔹How Swaps Monitor Helps
- Enhanced Trading Hours Centers with clear segmentation
- The “Functionalities” feature in our Trading Hours data indicates allowed actions in each sub-session
- New: “Pre-Open Eligibility Day” in our Expiry Dates data shows exactly when each contract becomes eligible
These enhancements ensure our customers know exactly when each contract is eligible for pre-open and what activities are allowed during each session.
Market adjustments can be complex — we make them simple to navigate.
Anticipate. Plan. Trust.
Affected Swaps Monitor codes:
| SM Code | Contract Name |
| INSN | NSE Equity Futures |
| BMSB | BSE Index Futures |
| BMBSX | SENSEX Futures |
| INSSF | Cash-Settled Single Stock Futures |
| INSNI | Nifty 50 Futures |
| INSNK | Nifty Bank Futures |
| INFIN | Nifty Financial Services Index Futures |
| INSSG | Physically-Settled Single Stock Futures |
📄 Explore our product:
🔗 Trading Hours – Know your trading window, down to the second
🔗 Expiry Dates – Never miss a deadline
📨 For more information, contact us at: info@swapsmonitor.com