Key Takeaways
- Index Options — Nifty, Bank Nifty, Sensex are always cash settled (no shares change hands)
- Stock Options — Physical delivery mandatory (you must give or take actual shares)
- In-The-Money (ITM) — Options with value are automatically exercised on expiry
- Out-of-The-Money (OTM) — Options with no value expire worthless, no action needed
- Margin Matters — Stock options need extra margin for physical delivery from expiry week
The Expiry Day Confusion Most Traders Face
It's Thursday, 3:25 PM. Your Bank Nifty call option is ₹200 in profit. You're excited. Then suddenly, you panic:
"Wait... what happens now? Will I get shares? Will someone take my money? Do I need to do something?"
If this sounds familiar, you're not alone. Option settlement confuses most Indian traders — even those who've been trading for years.
The good news? It's actually simpler than you think. In the next 15 minutes, you'll understand exactly what happens to your options when they expire.
"Understanding settlement is like understanding the rules of a game. You can't win if you don't know how points are scored."
— Trading Wisdom
Let's clear the confusion once and for all.
What is Option Settlement? The Simple Version
Think of option settlement like closing a deal.
When you buy an option, you're making a deal with someone. On expiry day, that deal must be closed. Settlement is simply how that deal gets closed.
The Deal
Option buyer has the RIGHT to buy/sell something at a fixed price
Expiry Day
The last day when this deal is valid
Settlement
How money or shares change hands to close the deal
The Restaurant Booking Analogy
Imagine you book a table at a fancy restaurant for Saturday night. You pay ₹500 as booking fee.
- If you show up: You get the table. Your booking fee was worth it.
- If you don't show up: You lose your ₹500 booking fee. The restaurant keeps it.
Options work the same way. The premium you pay is like the booking fee. On expiry, the deal is either executed or it expires worthless.
But here's where it gets interesting: In India, different options are settled in different ways.
Two Types of Settlement in India
In India, SEBI (the market regulator) allows two types of settlement:
| Feature | Cash Settlement | Physical Delivery |
|---|---|---|
| What happens | Only money changes hands | Actual shares change hands |
| Used for | Index options (Nifty, Bank Nifty, Sensex) | Stock options (Reliance, TCS, HDFC, etc.) |
| Do you need shares? | No, just money in your account | Yes, you need shares or money to buy shares |
| Complexity | Simple and easy | More complex, needs planning |
Let's understand each type in detail.
Cash Settlement: The Simple One (Index Options)
Cash settlement is like betting on a cricket match. You don't get the trophy — you just get money if you win.
How It Works
When your index option (Nifty, Bank Nifty, Sensex) expires In-The-Money (ITM):
Simple Formula
You receive: (Settlement Price - Strike Price) × Lot Size
Real Example — Bank Nifty Call Option
Let's say you bought:
- Bank Nifty 48000 CE (Call Option)
- Premium paid: ₹150
- Lot size: 15
On expiry day: Bank Nifty closes at 48500.
Your option is In-The-Money by 500 points (48500 - 48000 = 500).
Your Settlement
500 × 15 = ₹7,500
You Paid
₹150 × 15 = ₹2,250
Your Profit
₹7,500 - ₹2,250 = ₹5,250
Notice: No shares were bought or sold. Only money changed hands. This is cash settlement.
What Happens to OTM Options?
If Bank Nifty closed at 47800 instead (below your 48000 strike):
- Your option is Out-of-The-Money (OTM)
- It expires worthless
- You lose your premium (₹2,250)
- No action needed — it just disappears from your account
Good to Know
Cash settlement happens automatically. You don't need to click any button or do anything. The exchange calculates everything and credits or debits your account by T+1 day.
Physical Delivery: The Tricky One (Stock Options)
This is where most traders get surprised. Since 2019, SEBI made physical delivery mandatory for all stock options.
What does this mean? If your stock option expires ITM, actual shares will be delivered.
The Marriage Analogy
Think of stock options like an arranged marriage:
- Call option: You promised to "marry" (buy) the shares at a fixed price
- Put option: Someone promised to "marry" (buy) the shares from you at a fixed price
On expiry, if the option is ITM, this "marriage" must happen — shares must change hands!
Real Example — Reliance Call Option
You bought:
- Reliance 2800 CE (Call Option)
- Lot size: 250 shares
- Premium paid: ₹30 per share (₹7,500 total)
On expiry: Reliance closes at ₹2,900.
Your option is ITM. Now here's what happens:
You Must Pay
₹2,800 × 250 = ₹7,00,000
You Will Receive
250 shares of Reliance in your Demat account
Shares Value
₹2,900 × 250 = ₹7,25,000
Your profit is ₹25,000 (minus the ₹7,500 premium = ₹17,500 net profit). But the important thing is: You now own 250 Reliance shares!
Critical Warning
If you don't have ₹7 lakh in your account to buy those shares, you're in trouble! This is why physical delivery needs careful planning. More on this in the next section.
What About Put Options?
If you had bought a Reliance 2900 PE (Put Option) and Reliance closed at ₹2,800:
- Your put is ITM
- You must deliver 250 shares of Reliance
- You will receive ₹2,900 × 250 = ₹7,25,000
The catch: You must own those 250 shares to deliver. If you don't have them, your broker will buy them from the market — often at a loss to you.
Physical Delivery Rules You Must Know
Physical delivery has some important rules. Breaking them can be expensive.
Rule 1: Margin Increases During Expiry Week
From 4 days before expiry, margins on stock options increase. This is because the exchange wants to make sure you can afford the delivery.
| Day | Margin Requirement |
|---|---|
| Normal Days | Standard F&O margin |
| E-4 (4 days before expiry) | 10% of contract value added |
| E-3 | 25% of contract value added |
| E-2 | 45% of contract value added |
| E-1 (day before expiry) | 70% of contract value added |
This can catch you off guard. A position that needed ₹50,000 margin might suddenly need ₹3-4 lakh during expiry week!
Rule 2: Close Before Expiry to Avoid Delivery
Don't want physical delivery? Simple solution: Close your position before expiry.
- Sell your calls before 3:30 PM on expiry day
- Buy back your puts before 3:30 PM on expiry day
- You'll get your profit/loss in cash, no shares involved
Pro Tip
Most traders close their stock options 1-2 days before expiry to avoid margin increases and delivery complications.
Rule 3: What If You Can't Afford Delivery?
If you hold an ITM stock option till expiry but don't have money/shares for delivery:
- Your broker will try to square off your position at market price
- You might face penalties and auction charges
- The closing price might be worse than expected
- Some brokers charge additional fees for forced closure
Horror Story
A trader once held 5 lots of Bajaj Finance calls (625 shares) thinking he'd just get cash profit. On expiry, his broker demanded ₹45 lakh for delivery. He didn't have it. The forced closure cost him his entire profit plus extra fees. Don't be that trader.
Understanding ITM, ATM, and OTM at Expiry
Whether your option settles or expires worthless depends on one thing: Is it In-The-Money?
For Call Options (CE)
In-The-Money (ITM)
Current price > Strike price
Example: Nifty at 22500, your 22000 CE is ITM
At-The-Money (ATM)
Current price ≈ Strike price
Example: Nifty at 22000, your 22000 CE is ATM
Out-of-The-Money (OTM)
Current price < Strike price
Example: Nifty at 22000, your 22500 CE is OTM
For Put Options (PE)
In-The-Money (ITM)
Current price < Strike price
Example: Nifty at 22000, your 22500 PE is ITM
At-The-Money (ATM)
Current price ≈ Strike price
Example: Nifty at 22500, your 22500 PE is ATM
Out-of-The-Money (OTM)
Current price > Strike price
Example: Nifty at 22500, your 22000 PE is OTM
"Only ITM options have settlement value. OTM options expire worthless. There's no in-between on expiry day."
— The Options Reality
Expiry Days in India: The Complete Schedule
India has one of the busiest expiry schedules in the world. Here's when different options expire:
| Index/Stock | Expiry Day | Settlement Type |
|---|---|---|
| Bank Nifty Weekly | Wednesday | Cash |
| Nifty Weekly | Thursday | Cash |
| Sensex Weekly | Friday | Cash |
| FinNifty Weekly | Tuesday | Cash |
| Midcap Nifty Weekly | Monday | Cash |
| Monthly Options (All) | Last Thursday of month | Cash (Index) / Physical (Stock) |
Holiday Adjustment
If expiry day is a market holiday, expiry moves to the previous trading day. Always check the NSE holiday calendar!
Settlement Timeline: When Do You Get Your Money?
After expiry, here's what happens:
Cash Settlement Timeline
- Expiry Day (T): Market closes at 3:30 PM, settlement price calculated
- T+1 Day: Money credited or debited to your trading account
Example: If Nifty expires on Thursday, you'll see the settlement amount in your account by Friday evening.
Physical Delivery Timeline
- Expiry Day (T): Position marked for delivery
- T+1 Day: Shares debited/credited to your Demat account
- T+1 Day: Money debited/credited to your trading account
Settlement Timing
India moved to T+1 settlement in 2024, making it one of the fastest settlement markets in the world!
What About Option Sellers?
Everything we discussed applies to option buyers. But what if you sold options?
If You Sold a Call Option (CE)
You have the obligation to deliver shares if the buyer wants them.
- Index options: You pay the settlement difference if ITM
- Stock options: You must deliver the shares if ITM
Example: You sold Tata Motors 800 CE. Stock closes at 850. You must deliver shares at ₹800 (or buy them at ₹850 and deliver at ₹800, losing ₹50 per share).
If You Sold a Put Option (PE)
You have the obligation to buy shares if the buyer wants to sell them.
- Index options: You pay the settlement difference if ITM
- Stock options: You must accept delivery of shares if ITM
Example: You sold Infosys 1500 PE. Stock closes at 1400. You must buy 400 shares at ₹1500 each (₹6 lakh), even though they're worth only ₹5.6 lakh in the market.
Seller's Risk
Option sellers have unlimited risk (for calls) or substantial risk (for puts). Physical delivery makes this even more dangerous. Always know your maximum obligation before selling stock options.
5 Common Settlement Mistakes to Avoid
Ignoring Physical Delivery
Many traders hold stock options till expiry without realizing they'll need lakhs for delivery
Forgetting Margin Increase
Not keeping extra margin during expiry week leads to forced closure at bad prices
Confusing Settlement Price
Settlement price isn't always the last traded price. It's a calculated average that can differ
Not Checking STT
ITM options at expiry attract higher STT (0.125% vs 0.0625% on premium). This can eat profits
Waiting Till Last Minute
Trying to close positions in the last 5 minutes often leads to slippage and worse fills
The STT Trap on Expiry Day
Here's something that surprises most traders: STT (Securities Transaction Tax) is higher on ITM options at expiry.
| Scenario | STT Rate | Charged On |
|---|---|---|
| Selling option before expiry | 0.0625% | Premium amount |
| ITM option at expiry (exercised) | 0.125% | Full contract value (strike × lot size) |
Example of STT Impact
You hold Nifty 22000 CE. Nifty expires at 22100.
Option 1: Sell before expiry at ₹105
- Premium: ₹105 × 75 = ₹7,875
- STT: 0.0625% of ₹7,875 = ₹4.92
Option 2: Let it expire ITM
- Contract value: ₹22,000 × 75 = ₹16,50,000
- STT: 0.125% of ₹16,50,000 = ₹2,062.50
That's a ₹2,057 difference in taxes! For a ₹7,500 profit, losing ₹2,000+ to STT is painful.
Smart Move
If your ITM option has only small intrinsic value, it's often cheaper to sell before expiry than let it expire and pay higher STT.
Practical Tips for Expiry Day Trading
Trade Early
Close positions by 3:00 PM. Last 30 minutes can be chaotic with wild swings and poor liquidity
Calculate STT
For deep ITM options, calculate if selling early saves you money on STT
Keep Extra Margin
During expiry week, maintain 20-30% extra margin for stock options
Avoid Illiquid Strikes
Deep ITM or OTM options can be hard to sell at fair prices on expiry
"Expiry day is not for gambling. It's for executing your plan. If you don't have a plan, you don't have a trade."
— Professional Trader Wisdom
Quick Summary: What You Need to Remember
Let's wrap up everything in simple points:
Index Options (Nifty, Bank Nifty, Sensex)
- Always cash settled — no shares involved
- ITM options: You get the difference in cash
- OTM options: Expire worthless, you lose premium
- Settlement happens T+1
Stock Options (Reliance, TCS, etc.)
- Physical delivery mandatory for ITM options
- Margins increase during expiry week
- Close before expiry if you don't want delivery
- Need full cash/shares for delivery obligation
Golden Rules
- Know your settlement type BEFORE trading
- Close stock options 1-2 days before expiry if unsure
- Watch out for STT on ITM expiry
- Keep extra margin during expiry week
- Don't wait till last minute to close positions
Now you know more about option settlement than 90% of Indian traders. Use this knowledge wisely.
Option Settlement Cheat Sheet
- Index Options: Cash settled, simple, no shares involved
- Stock Options: Physical delivery, need actual money/shares
- ITM at Expiry: Automatically exercised and settled
- OTM at Expiry: Expires worthless, no action needed
- STT Warning: 0.125% on ITM expiry vs 0.0625% if sold early
- Best Practice: Close stock options before expiry unless you want delivery