Add training workflow, datasets, and runbook

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224 Part II: Call Option Strategies
before April expiration. He should then figure his collateral requirement as if the
stock were at 53, regardless of what the collateral requirement is at the current time.
This is a prudent tactic whenever naked options are involved, since the strategist will
never be forced into an unwanted close-out before his defensive action point is
reached. The collateral required for this example would then be as follows, assuming
the call is trading at 3½:
20% of 53
Call premium
Less initial credit
Total collateral to set aside
$1,060
+ 350
-___fill
$1,360
The strategist is not really "investing" anything in this strategy, because his require­
ment is in the form of collateral, not cash. That is, his current portfolio assets need
not be disturbed to set up this spread, although losses would, of course, create deb­
its in the account. Many naked option strategies are similar in this respect, and the
strategist may earn additional money from the collateral value of his portfolio with­
out disturbing the portfolio itself. However, he should take care to operate such
strategies in a conservative manner, since any income earned is "free," but losses may
force him to disturb his portfolio. In light of this fact, it is always difficult to compute
returns on investment in a strategy that requires only collateral to operate. One can,
of course, compute the return on the maximum collateral required during the life of
the position. The large investor participating in such a strategy should be satisfied
with any sort of positive return.
Returning to the example above, the strategist would make his $50 credit, less
commissions, if the underlying stock remained below 50 until July expiration. It is not
possible to determine the results to the upside so definitively. If the April 50 calls
expire worthless and then the stock rallies, the potential profits are limited only by
time. The case in which the stock rallies before April expiration is of the most con­
cern. If the stock rallies immediately, the spread will undoubtedly show a loss. If the
stock rallies to 50 more slowly, but still before April expiration, it is possible that the
spread will not have changed much. Using the same example, suppose that XYZ ral­
lies to 50 with only a few weeks of life remaining in the April 50 calls. Then the April
50 calls might be selling at l ½ while the July 50 call might be selling at 3. The ratio
spread could be closed for even money at that point; the cost of buying back the 2
April 50's would equal the credit received from selling the one July 50. He would thus
make½ point, less commissions, on the entire spread transaction. Finally, at the expi­
ration date of the April 50 calls, one can estimate where he would break even.
Suppose one estimated that the July 50 call would be selling for 5½ points if XYZ
were at 53 at April expiration. Since the April 50 calls would be selling for 3 at that