Add training workflow, datasets, and runbook

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+32  •   The Intelligent Option Investor
+This example illustrates precisely the process on which the BSM and 
+all other statistically based option pricing formulas work. The BSM has a 
+fixed number of inputs regarding the underlying asset and the contract itself. 
+Inputting these variables into the BSM generates a range of likely future values 
+for the price of the underlying security and for the statistical probability of the 
+security reaching each price. The statistical probability of the security reach-
+ing a certain price (that certain price being a strike price at which we are inter-
+ested in buying or selling an option) is directly tied to the value of the option.
+Now that you have a feel for the BSM on a conceptual dining-
+reservation level, let’s dig into a specific stock-related example.
+Step-by-Step Method for Predicting Future Stock 
+Price Ranges—BSM-Style
+In order to understand the process by which the BSM generates stock price 
+predictions, we should first look at the assumptions underlying the model. 
+We will investigate the assumptions, their tested veracity, and their impli-
+cations in Chapter 3, but first let us just accept at face value what Messrs. 
+Black, Scholes, and Merton take as axiomatic.
+According to the BSM,
+• Securities markets are “efficient” in that market prices perfectly 
+reflect all publicly available information about the securities. This 
+implies that the current market price of a stock represents its fair 
+value. New information regarding the securities is equally likely to 
+be positive as negative; as such, asset prices are as likely to move up 
+as they are to move down.
+• Stock prices drift upward over time. This drift cannot exceed the 
+risk-free rate of return or arbitrage opportunities will be available.
+• Asset price movements are random and their percentage returns 
+follow a normal (Gaussian) distribution.
+• There are no restrictions on short selling, and all hedgers can bor -
+row at the risk-free rate. There are no transaction costs or taxes. 
+Trading never closes (24/7), and stock prices are mathematically 
+continuous (i.e., they never gap up or down), arbitrage opportuni-
+ties cannot persist, and you can trade infinitely small increments of 
+shares at infinitely small increments of prices.