What are the different index contracts traded in the Indian Stock Market ?
Some of the Indices traded in the Indian Stock Market are:
| Sr.No | INDEX | EXPIRY DAY |
| 1 | NIFTY | Every Tuesday |
| 2 | BANKNIFTY | Last Tuesday of expiry month |
| 3 | MIDCPNIFTY | Last Tuesday of expiry month |
| 4 | FINNIFTY | Last Tuesday of expiry month |
| 5 | NIFTYNXT50 | Last Tuesday of expiry month |
| 6 | SENSEX | Every Thursday |
| 7 | BANKEX | Last Thursday of every month |
| 8 | SENSEX 50 | Last Thursday of every month |
| 9 | FOCUSED IT INDEX | Last Thursday of each contract maturity month |
* If the Tuesday is a trading holiday, then the expiry day is the previous trading day.
Some changes affecting index options trading, effective from November 2024, have been introduced by the regulators (including SEBI and Exchanges), to enhance market stability and reduce potential risks. These are :
1. Increase in Contract Size
Lot sizes of index options have been revised. The revised lot sizes are as follows:
| Sr.No | Index | Old Lot Size | New Lot Size |
|---|---|---|---|
| 1. | Nifty 50 | 75 | 65 |
| 2 | BANKNIFTY | 35 | 30 |
| 3 | MIDCPNIFTY | 140 | 120 |
| 4 | Nifty Financial Services | 65 | 60 |
| 5 | Nifty Midcap Select | 50 | 120 |
| 6 | Nifty Next 50 | 10 | 25 |
| 7 | BSE Sensex | 10 | 20 |
| 8 | BSE Bankex | 15 | 30 |
| 9 | BSE Sensex 50 | 25 | 60 |
| 10 | FOCUSED IT INDEX | 20 |
2. Weekly Expiry Contracts
Only Indices Nifty 50 and Sensex will offer weekly expiry contracts. The existing weekly and monthly expiry contracts will continue with the existing lot size till their respective expiry dates. In the case of quarterly and half-yearly existing expiry contracts, the same shall be transitioned to the new lot size on December 24, 2024, at the end of the day for BANKNIFTY and December 26, 2024, at the end of the day for NIFTY. Other index options will only have monthly expiry contracts.
3. Additional Margin on Expiry Day
A 2% Extreme Loss Margin (ELM) will be applied to short positions on the expiry day, with no margin benefits available for calendar spreads on that day.
Effective February 1, 2025:
Margin benefits for calendar spreads are not available on the expiry day.
For More Details :
Changes in Market Lot for Index Derivatives Contracts
Measures to Strengthen Equity Index Derivatives Framework for Increased Investor Protection and Market Stability
Please go through the below given NSE & BSE circulars :
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