Add training workflow, datasets, and runbook

training_data/relevant/text/92b9578e0f85f4ec47d2aba3cf54f5220f693e1b19ffde8bf4c5d0c7fd2ce6ec.txt

@@ -0,0 +1,48 @@
+Chapter 38: The Distribution of Stock Prices 187 
+Lest you think that this example was biased by the fact that it was taken during 
+a strong run in the NASDAQ market, here's another example, conducted with a dif­
+ferent set of data- using stock prices between June 1 and July 18, 1999 (also 30 trad­
+ing days in length). At that time, there were fewer large moves; about 250 stocks out 
+of 2,500 or so had moves of more than three standard deviations. However, that's still 
+one out of ten - way more than you've been led to expect if you believe in the nor­
+mal distribution. The results are shown in Table 38-3. 
+TABLE 38-3. 
+More stock price movements. 
+Total Stocks: 2,447 Dates: 6/1 /99-7 /18/99 
+Upside Moves: 
+Downside Moves: 
+3cr 
+104 
+54 
+4cr 
+28 
+19 
+Scr 
+13 
+7 
+>6cr 
+12 
+14 
+Total number of stocks moving >=3cr: 251 ( 10% of the stocks studied) 
+Total 
+157 
+94 
+Finally, one more example was conducted, using the least volatile period that 
+we had in our database - July of 1993. Those results are in Table 38-4. 
+TABLE 38-4. 
+Stock price movements during a nonvolatile period. 
+Total Stocks: 588 Dates: 7 /1 /93-8/17 /93 
+3cr 4cr Scr >6cr Total 
+Upside Moves: 14 5 1 1 21 
+Downside Moves: 28 5 3 4 40 
+Total number of stocks moving >=3cr: 61 ( 10% of the stocks studied) 
+At first glance, it appears that the number of large stock moves diminished dra­
+matically during this less volatile period in the market - until you realize that it still 
+represents 10% of the stocks in the study. There were just a lot fewer stocks with list­
+ed options in 1993 than there were in 1999, so the database is smaller (it tracks only 
+stocks with listed options). Once again, this means that there is a far greater chance 
+for large standard deviations moves - about one in ten - than the nearly zero percent 
+chance that the lognormal distribution would indicate. 
+VOLATILITY BUYER'S RULE! 
+The point of the previous discussion is that stocks move a lot farther than you might 
+expect. Moreover, when they make these moves, it tends to be with rapidity, gener-