Julian Henry

Quant finance Series of 3 42 min

Black-Scholes-Merton

What an option is, the Black–Scholes price of a call derived from scratch, and what happens to the formula when each assumption fails.

What you need Calculus, a little differential equations, and a first statistics course.

  1. I Options, Explained Calls and puts from both sides of the trade; European, American and Bermudan exercise; and the assumptions the Black-Scholes-Merton formula rests on. 12 min
  2. II Deriving BSM from Scratch Builds Brownian motion from coin flips, shows with Itô's lemma that a stock is lognormal, and integrates the call payoff to derive the Black-Scholes formula. 16 min
  3. III Nuance, and Other Approaches The Black-Scholes formula rederived from the heat equation and a change of numeraire, then each assumption relaxed: rates, dividends, the volatility smile. 14 min

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