Description
NSE announces adjustments to HDFC Bank F&O contracts due to 1:1 bonus issue with record date August 27, 2025.
Summary
NSE announces mandatory adjustments to all HDFC Bank Ltd Futures and Options contracts following the company’s announcement of a 1:1 bonus issue. The adjustments will be implemented on August 25, 2025 (end of day) with ex-date August 26, 2025.
Key Points
- HDFC Bank Ltd (NSE Symbol: HDFCBANK) declared 1:1 bonus issue
- Record date: August 27, 2025
- Adjustment factor: 2.0 [(1+1)/1]
- All existing F&O contracts will be adjusted automatically
- Market lot doubles from 550 to 1,100 shares
- Strike prices will be halved (divided by adjustment factor)
Regulatory Changes
- Strike prices divided by adjustment factor (2.0)
- Market lot multiplied by adjustment factor (2.0)
- All existing positions multiplied by adjustment factor (2.0)
- Futures prices divided by adjustment factor (2.0) and rounded to nearest tick size
- Contract specifications updated to reflect new lot size and pricing
Compliance Requirements
- All adjustments are mandatory and implemented automatically by NSE
- No action required from traders or brokers
- Margin requirements will be recalculated based on adjusted contract specifications
- Position limits apply to adjusted positions
Important Dates
- August 25, 2025: Adjustment implementation (end of day)
- August 26, 2025: Ex-date for bonus issue
- August 27, 2025: Record date for bonus issue
Impact Assessment
High impact on HDFC Bank derivatives trading with automatic adjustment of all existing positions. Key impacts include halved strike prices, doubled market lot size, changed contract values, and updated margin requirements. All F&O positions will be automatically adjusted without requiring trader intervention.
Impact Justification
Major adjustment to F&O contracts of large bank stock affecting all positions and pricing