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"If, over the past 36 months, each month you opened a SPY butterfly 30
days out with 10 point wings and held it for 17 days, how many months would it
have needed adjustment?"
The answer is: 6 months would require adjustments (see
report below).
This type of question can now be answered by Trade Simulator, a free
application you can run from your desktop.
How can you use this information?
You could backtest by opening a trade on 8/6/07 using Optionvue or TOS's
thinkBack, then fast forward to 8/17/07 where the strike is hit and see if you
could adjust the trade to a successful conclusion.
You also gain confidence that this is probably a viable trading strategy.
New Version 1.04 -
Standard Deviation has been added as a 3rd choice, in addition to Percentage and
Points!!!
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