Add training workflow, datasets, and runbook

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+866 Part VI: Measuring and Trading VolatOity 
+enough, the gamma (and therefore the delta) may change dramatically. Thus, one 
+might want to know how this risk measure affects his profitability. 
+SUMMARY 
+Delta: Positive delta indicates that a position is currently bullish; if the underly­
+ing security goes up in price, the position should make money. A negative 
+delta indicates a bearish slant. 
+Gamma: Positive gamma means that the delta will increase if the underlying secu­
+rity rises in price. Positive gamma generally implies that there is a pre­
+ponderance of long options in the position, either puts or calls; negative 
+gamma indicates written or naked options in the position. 
+Theta: Negative theta means that the position will lose money as time passes 
+(typical of positions with long options); positive theta implies that time is 
+working for the position (positions with written options). 
+Vega: Positive vega means that an increase of (perceived) volatility will benefit 
+the position - usually true of positions with long options in them; nega­
+tive vega means that a decrease of volatility would be beneficial. 
+STRATEGY CONSIDERATIONS: USING THE 
+11
+GREEKS" 
+Before looking at how one operates a particular strategy using delta, gamma, etc., it 
+might be beneficial to see how these factors relate to the individual strategies that 
+have been described throughout this book. Table 40-8 is a general guide to how the 
+various strategies are exposed to various market factors. It is not an all-purpose or 
+specific table, because as the stock moves higher or lower, some of the risk measure­
+ment factors will certainly be affected. 
+A few assumptions were made in constructing the table. First, it was assumed 
+that the strategies where delta is noted as being zero are established in a neutral 
+stance. The bull spread and bear spread strategies assumed that the stock was mid­
+way between the striking prices. Two other spread strategies - ratio call and ratio put 
+- assumed the stock was at the striking price of the option that was sold. In all other 
+cases, there is only one striking price involved, and it was assumed that the stock was 
+at the strike. 
+The table may help to clarify some of the concepts concerning the risk meas­
+urement factors. First, notice that stock or futures - or any underlying security- have 
+only delta. None of the other factors pertains to the underlying security itself.