sebi
Published on 10 July 2025
SEBI's Proposed Changes to Equity Derivative Expiration Days Explained
SEBI Eyes Uniform Expiry Days for Equity Derivatives: What It Means for Traders and Exchanges
The Securities and Exchange Board of India (SEBI) is looking to bring greater predictability and balance to the derivatives market. In a new consultation paper, the regulator has proposed sweeping changes to how and when equity derivatives contracts expire—setting the stage for a more orderly and transparent market structure.
What’s Changing?
SEBI wants to streamline the expiry calendar for all equity derivatives—whether index or stock, weekly or monthly. Under the proposed rules:
- Expiry days would be fixed: Only Tuesdays or Thursdays would be allowed.
- No more Monday or Friday expiries: The first and last trading days of the week would be off-limits, to avoid expiry-day crowding.
- Fewer overlapping products: Each exchange will be allowed only one weekly benchmark index options contract.
- Regulator’s green light required: No expiry or settlement day changes can happen without SEBI’s approval.
These moves are meant to cut down on expiry-related volatility, prevent concentration of trades on specific days, and ensure smoother functioning of the derivatives ecosystem.
Why Is SEBI Doing This?
There’s been growing concern that too many expiry events—especially overlapping weekly options across exchanges—could heighten market volatility and confuse investors. By narrowing the window and enforcing consistency, SEBI hopes to:
- Spread out trading pressure
- Prevent manipulation or excessive speculation on expiry days
- Allow investors to better manage their positions and risks
The regulator has taken a firm stance on the need to preserve market integrity, especially as options trading volumes have surged in recent years.
Recent Moves by Exchanges
In response to SEBI’s October 2024 directive, exchanges have already started adjusting their schedules:
- BSE moved its Sensex weekly options expiry to Tuesday
- NSE plans to shift Nifty’s weekly expiry to Monday from April 4
This created a new challenge—a clustering of expiries early in the week, prompting SEBI to step in with this broader proposal.
What Happens to Monthly Contracts?
Under the new rules, all other equity derivatives—including:
- Non-benchmark index futures/options
- All single-stock futures/options
- Benchmark index futures
…must have a minimum one-month tenor and expire in the last week of the month, again on either a Tuesday or Thursday.
Proposed Expiry Framework at a Glance
| Contract Type | Allowed Expiry Day | Key Rule |
|---|---|---|
| Weekly Benchmark Index Options | Tuesday or Thursday | One per exchange |
| All Other Equity Derivatives | Last Tuesday/Thursday of month | Minimum 1-month tenor |
| Changes to Expiry/Settlement Days | SEBI approval required | Applies to all contracts |
Stakeholders Get a Say
SEBI is inviting feedback on the proposal until April 17, giving brokers, investors, and exchanges a chance to weigh in before any final rules are issued.
Market observers expect the regulator to move quickly, given its emphasis on risk management and market efficiency.
Final Thoughts
SEBI’s push to reshape the expiry structure in the equity derivatives segment is both timely and necessary. As India's options market continues to grow—especially among retail traders—the need for predictability, discipline, and oversight has never been greater.
By introducing uniformity and capping excess, SEBI is signalling a deeper commitment to investor protection and market resilience.