Add training workflow, datasets, and runbook

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+Chapter 31: Index Spreading 583 
+slightly more volatile than these two larger indices, and also has more technology and 
+less basic industry such as steel and chemicals. The OEX movement definitely has 
+good correlation to the S&P 500. The S&P 500 Index (SPX) currently trades at about 
+twice the "speed" of the OEX Index. This has been true since OEX split 2-for-l in 
+November 1997. A one-point move in SPX is approximately equal to a move of 7.5 
+points in the Dow-Jones Industrial Average, while a one-point move in OEX is 
+approximately equal to 15 Dow points. 
+In general, it is easier to spread the indices by using futures rather than options, 
+although only the S&P 500 Index has liquid futures markets. (There is a mini-Value 
+Line futures market, as well as Dow-Jones futures - both of which are fairly illiq­
+uid - but no futures trade on OEX.) One reason for this is liquidity - the index 
+futures markets have large open interest. Another reason is tightness of markets. 
+Futures markets are normally 5 or 10 cents wide, while option markets are 10 cents 
+wide or more. Moreover, an option position that is a full synthetic requires both a put 
+and a call. Thus, the spread in the option quotes comes into play twice. 
+The Japanese stock market can be spread against the U.S. markets by spread­
+ing a U.S. index against Nikkei futures or futures options, traded on the Chicago 
+Mere, or against JPN options, traded on the AMEX. 
+INTER-INDEX SPREADS USING OPTIONS 
+As mentioned before, it may not be as efficient to try to use options in lieu of the 
+actual futures spreads since the futures are more liquid. However, there are still 
+many applications of the inter-index strategy using options. 
+OEX versus S&P 500. The OEX cash-based index options are the most liquid 
+option contracts. Thus, any inter-index spread involving the OEX and other indices 
+must include the OEX options. 
+The S&P 100 was first introduced in 1982 by the CBOE. It was originally 
+intended to be an S&P 500 look-alike whose characteristics would allow investors 
+who did not want to trade futures ( S&P 500 futures) the opportunity to be able to 
+trade a broad index by offering options on the OEX. Initially, the index was known as 
+the CBOE 100, but later the CBOE and Standard and Poor's Corp. reached an 
+agreement whereby the index would be added to S&P's array of indices. It was then 
+renamed the S&P 100. 
+Initially, the two indices traded at about the same price. The OEX was the more 
+expensive of the two for a while in the early 1980s. As the bull market of the 1980s 
+matured, the S&P 500 ground its way higher, eventually reaching a price nearly 30 
+points higher than OEX. As one can see, there is ample room for movement in the 
+spread between the cash indices.