Add training workflow, datasets, and runbook
This commit is contained in:
@@ -0,0 +1,33 @@
|
||||
162 Part II: Call Option Strategies
|
||||
Number of
|
||||
round lots = Current delta x Number of short calls - Round lots held long
|
||||
to buy
|
||||
Note: If a negative number results, stock should be sold, not bought.
|
||||
These formulae can be verified by using the numbers from the examples above. For
|
||||
example, when the delta of the October 50 was .80 with the stock at 57, it was seen
|
||||
that buying 100 shares of stock would reestablish a neutral ratio.
|
||||
Number of round lots to buy= .80 x 5 3 = 4- 3 = 1
|
||||
Also, if the position was to be rolled up to the October 60 (delta = .40), it was seen
|
||||
that 7.5 October 60's would theoretically be sold:
|
||||
Number of calls to sell = __l_ = 7.5 .40
|
||||
There is a more general approach to this problem, one that can be applied to
|
||||
any strategy, no matter how complicated. It involves computing whether the position
|
||||
is net short or net long. The net position is reduced to an equivalent number of shares
|
||||
of common stock and is commonly called the "equivalent stock position" (ESP). Here
|
||||
is a simple formula for the equivalent stock position of any option position:
|
||||
ESP = Option quantity x Delta x Shares per option
|
||||
Example: Suppose that one is long 10 XYZ July 50 calls, which currently have a delta
|
||||
of .45. The option is an option on 100 shares of XYZ. Thus, the ESP can be computed:
|
||||
ESP = 10 x .45 x 100 = 450 shares
|
||||
This is merely saying that owning 10 of these options is equivalent to owning 450
|
||||
shares of the underlying common stock, XYZ. The reader should already understand
|
||||
this, in that an option with a delta of .45 would appreciate by .45 points if the com
|
||||
mon stock moved up 1 dollar. Thus, 10 options would appreciate by 4.5 points, or
|
||||
$450. Obviously, 450 shares of common stock would also appreciate by $450 if they
|
||||
moved up by one point.
|
||||
Note that there are some options - those that result from a stock split- that are
|
||||
for more than 100 shares. The inclusion of the term "shares per option" in the for
|
||||
mula accounts for the fact that such options are equivalent to a different amount of
|
||||
stock than most options.
|
||||
The ESP of an entire option and stock position can be computed, even if sev
|
||||
eral different options are included in the position. The advantage of this simple cal-
|
||||
Reference in New Issue
Block a user