PROTECTED SOURCE SCRIPT
Telah dikemas kini

Black–Scholes model - Options premium calculator

220
Black-Scholes Options Pricing Calculator in Pine Script Introduction

The Black-Scholes model is one of the most widely used mathematical models for pricing options. It provides a theoretical estimate of the price of European-style options based on factors such as the underlying asset price, strike price, time to expiration, volatility, risk-free rate, and option type.

This Pine Script implementation of the Black-Scholes options pricing model enables traders to calculate call and put option prices directly within TradingView, helping them assess potential trades more efficiently.

What Does This Script Do?
This script allows traders to input essential option parameters and instantly calculate both call and put option prices using the Black-Scholes formula. It provides:
• A user-friendly interface for inputting option parameters.
• Automatic computation of option prices.
• Real-time updates as market data changes.
Key Features:
• Uses the Black-Scholes formula to compute European call and put option prices.
• User-defined inputs for stock price, strike price, time to expiration, volatility, and risk-free rate.
• Displays calculated option prices on the TradingView chart.

Understanding the Black-Scholes Formula:
The Black-Scholes model is given by the following equations:
C=S0N(d1)−Xe−rtN(d2)C = S_0 N(d_1) - Xe^{-rt} N(d_2) P=Xe−rtN(−d2)−S0N(−d1)P = Xe^{-rt} N(-d_2) - S_0 N(-d_1)

Where:
• CC = Call option price
• PP = Put option price
• S0S_0 = Current stock price
• XX = Strike price
• rr = Risk-free interest rate
• tt = Time to expiration (in years)
• σ\sigma = Volatility of the stock (annualized)
• N(x)N(x) = Cumulative standard normal distribution
• d1d_1 and d2d_2 are given by:
d1=ln⁡(S0/X)+(r+σ2/2)tσtd_1 = \frac{ \ln(S_0/X) + (r + \sigma^2/2)t }{ \sigma \sqrt{t} } d2=d1−σtd_2 = d_1 - \sigma \sqrt{t}
This script implements these calculations efficiently in Pine Script to help traders quickly determine fair values for options based on current market conditions.

Example Calculation:
(The following example values were true at the time of publishing this script. Option prices fluctuate constantly, so actual values may vary.)
• Underlying asset price (NIFTY): 23,519.35
• ATM Call Strike Price: 23,500
• ATM Put Strike Price: 23,550
• IV (Implied Volatility) for Call Option: 8.1%
• IV (Implied Volatility) for Put Option: 10.1%
• Expiry Date: April 3, 2025

Using the Black-Scholes model, the calculated theoretical prices are:
• Theoretical ATM CE price: ₹129
• Theoretical ATM PE price: ₹118

For comparison, the actual option prices from the option chain table at the time of writing were:
• Actual ATM CE price: ₹139.70
• Actual ATM PE price: ₹120.30

As we can see, there is a larger difference between the theoretical price and actual market price for the ATM Call option compared to the ATM Put option.
If you're an experienced trader, you likely know how to use this kind of information to identify potential market inefficiencies or trading opportunities.

How to Use This Script:
1. Add the script to your TradingView chart.
2. Input the necessary parameters such as stock price, strike price, volatility, risk-free rate, and time to expiration.
3. View the calculated call and put option prices directly on the chart.

This Black-Scholes options pricing calculator provides a convenient way to compute theoretical option prices within TradingView. It helps traders analyse whether an option is fairly priced based on market conditions.

While the Black-Scholes model has its limitations (e.g., it does not account for early exercise of American options or dividend payments), it remains a powerful tool for European-style options pricing and a foundational concept in financial markets.

A handy little tool! Unfortunately, this script requires manual data entry since automatic data capture is currently not possible. If this ever becomes feasible in the future, an updated version will be released.

Try it out and let me know your feedback!

Disclaimer:
Please note that this is only for study/educational purpose and is just one of the many tools a trader may use.

Use it at your own risk.

Regards!
Nota Keluaran
//Updated Tags

Penafian

Maklumat dan penerbitan adalah tidak dimaksudkan untuk menjadi, dan tidak membentuk, nasihat untuk kewangan, pelaburan, perdagangan dan jenis-jenis lain atau cadangan yang dibekalkan atau disahkan oleh TradingView. Baca dengan lebih lanjut di Terma Penggunaan.