Welcome to the Black-Scholes-Merton Options Trading Calculators Blog — your resource for practical Options pricing theory written by an active trader with a finance degree and real experience in trading.
Every article here is grounded in the Black-Scholes-Merton (BSM) framework: The mathematical model that transformed how markets price Options. Whether you trade equity Options, Indices, Commodities, or Forex, understanding BSM gives you an analytical edge most retail traders simply don't have.
I cover the full spectrum: The Option Greeks (Delta, Gamma, Theta, Vega and Rho), Implied Volatility, Multi-Leg strategies and the principles behind Professional-Grade Pricing Tools. My blog articles are written to be both technically rigorous and practically useful — not just theory for theory's sake.
Browse the posts below, or use the sidebar to jump to a specific topic. If time allows new articles will be published, so check back soon.
The Black-Scholes-Merton (BSM) Model revolutionized Options trading when it was introduced in 1973. This groundbreaking formula provides traders with a mathematical framework for pricing European-style Options and understanding the Greeks.
In this comprehensive guide, we'll explore how the BSM model works, its assumptions, and how you can use it to make more informed trading decisions...
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Image: Gamma's Relationship with Theta and Time to Expiration (Days to Expiry) for a Long Call & Put.
What are Option “Greeks?” Greeks Overview:
Option Greeks are mathematical measures derived from the Black-Scholes-Merton (BSM) Option Pricing Model that revolutionised Options trading and describe how different factors will affect the price of an Options contract. These factors include changes in the Underlying Asset's Price, Time to Expiry, Volatility, Interest Rates. The Greeks are essential for traders to understand the risks and potential rewards of Options trading.
You can buy or sell a Call or Put Option to open or close a position. Typically Options give you the right to obtain...
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Call and Puts:
Each provides the holder specific rights to buy or sell an underlying asset at a predetermined price (the Strike price) before or on a specific date (the expiration date).
You can buy or sell a Call or Put Option to open or close a position. Typically Options give you the right to obtain...
Continue reading