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4 Jul 2025 – 10 Jul 2025 · A quiet week

NIFTY stayed within 0.85% from 4 Jul 2025 to 10 Jul 2025. Both options lost time value.

The call at the same went from ₹182.90 to ₹0.00.

Thursday, 3 July 2025 – Thursday, 10 July 2025: NIFTY fell 50.05 points. The practice put changed from ₹146.45 to ₹44.75. Why?

What you will learn

  • See how an index move changes a put and a call.
  • Separate time passing from IV, the expected size of future moves.
  • Compare the result before and after costs.
premium3 Jul 2025 → 10 Jul 2025After charges
Put 25,400Expiry 10 Jul 2025₹146.45 → ₹44.75₹10,983.75 → ₹3,356.25−₹7,661.07 lossCharges ₹33.57
Call 25,400Expiry 10 Jul 2025₹182.90 → ₹0.00₹13,717.50 → ₹0.00−₹13,747.27 lossCharges ₹29.77

4 Jul 2025 – 10 Jul 2025 · A quiet week · Premium (₹)

Loading the chart

10 Jul 2025 · Call ₹0.00 · Put ₹44.75

Read the prices
DateCallPut
3 Jul 2025₹182.90₹146.45
4 Jul 2025₹197.10₹109.40
7 Jul 2025₹169.70₹95.05
8 Jul 2025₹182.95₹51.55
9 Jul 2025₹121.15₹40.60
10 Jul 2025₹0.00₹44.75

On this day 1 was 75. It is 65 now. Charges use the rates as at 18 Oct 2026.

How the money is worked out × lot size = the money for 1 lot. Money received − money paid − charges = the result.

  • Put 25,400: ₹146.45 × 75 = ₹10,983.75 paid. ₹44.75 × 75 = ₹3,356.25 received. ₹3,356.25 − ₹10,983.75 − ₹33.57 charges = −₹7,661.07 loss.
  • Call 25,400: ₹182.90 × 75 = ₹13,717.50 paid. ₹0.00 × 75 = ₹0.00 received. ₹0.00 − ₹13,717.50 − ₹29.77 charges = −₹13,747.27 loss.

Cost details

Each charge in rupees. Together they make the Charges total above.

Put 25,400 · Charges ₹33.57
Brokerage
₹20.00

Your broker’s fee. We use ₹20.00 for each order. This trade has 1 order.

STT
₹5.03

. At it is charged on what the option is worth. This one is our estimate.

Exchange transaction charge
₹3.90

The stock exchange takes this fee on each trade.

SEBI fee
₹0.01

SEBI watches over the market. This is its tiny fee.

Stamp duty
₹0.33

A government tax on the buy order.

GST
₹4.30

Goods and Services Tax. It is charged on the brokerage and the fees.

Total charges
₹33.57

Work out your own trade in the trading cost calculator →

Call 25,400 · Charges ₹29.77
Brokerage
₹20.00

Your broker’s fee. We use ₹20.00 for each order. This trade has 1 order.

STT
₹0.00

Securities Transaction Tax. None here, because the option was worth nothing at expiry.

Exchange transaction charge
₹4.87

The stock exchange takes this fee on each trade.

SEBI fee
₹0.01

SEBI watches over the market. This is its tiny fee.

Stamp duty
₹0.41

A government tax on the buy order.

GST
₹4.48

Goods and Services Tax. It is charged on the brokerage and the fees.

Total charges
₹29.77

Work out your own trade in the trading cost calculator →

Try it on the desk →

What moved them

NIFTY 25,405.30 → 25,355.25 · India VIX 12.39 → 11.67

Estimated price split

is the size of move suggested by the option’s price. India VIX is a separate number.

Price change before charges

Put

NIFTY’s move
+₹2,589.60 gain
Time passed
−₹10,217.11 loss
IV’s move
—
Remaining difference
+₹0.01 gain

IV cannot be solved at expiry. The index and time split holds the starting IV.

Call

NIFTY’s move
−₹1,163.94 loss
Time passed
−₹12,553.57 loss
IV’s move
—
Remaining difference
+₹0.01 gain

IV cannot be solved at expiry. The index and time split holds the starting IV.

The model uses interest 7% and dividend 0.6%.

This calculation uses 0.15% for exercise STT.

Every strategy that day

Long put

Bought the put

−₹7,661.07 loss

Long call

Bought the call

−₹13,747.27 loss

Long straddle

Bought both

−₹21,408.34 loss

Short straddle

Sold both

+₹21,250.37 gain

The index stayed quiet. Which option kept its time value?

See the answer

The put changed by −₹101.70 loss. The call changed by −₹182.90 loss.

Questions on this

Options questions · NISM Series VIII →

See the answer

Recorded NIFTY minute prices · Thursday, 10 July 2025

Put · Closing premium ₹51.85 · expiry value ₹44.75

Call · Closing premium ₹0.05 · expiry value ₹0.00

Strike Price

The strike price is the level at which an option can be exercised.

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Lot Size

Lot size is the number of units of the underlying that one derivatives contract stands for.

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Option Premium

An option's price is its premium.

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Securities Transaction Tax (STT)

Securities Transaction Tax (STT) is a statutory tax the Government of India levies on purchases and sales of securities.

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Expiry Day

Expiry day is the last day on which a derivative contract can be traded.

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Implied Volatility (IV)

Implied volatility is the market's assumption about how much the underlying will move before expiry.

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