Profitaker
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Splitlink
There is nothing remarkable about selling a DOTM Put (or call for that matter) and watching it expire worthless. If you choose an option with a delta of 0.10 then the odds are extremely high (9 times out of 10) that it will expire worthless. It's the same a laying a horse at 10/1 not to win. If the odds are priced correctly, then over the long run you will win 9 times and lose once but the loss will equal the gains made on the previous 9 occassions. So it makes no difference whether you buy or sell options, as you will ultimately break-even before costs.
Consider also the extreme events, so extreme that they cannot be modelled.
DB
But results (per se) are uncorrelated. For example, an up day no matter how large, is no more likely to be followed by another up day than it is likely to be followed by a down day.
I agree what you're saying re large moves, in other words a large move is likely to be followed by another large move, but that is a statement about volatility rather than correlation, surely ?
I've never come accross this theorm in option trading.
There is nothing remarkable about selling a DOTM Put (or call for that matter) and watching it expire worthless. If you choose an option with a delta of 0.10 then the odds are extremely high (9 times out of 10) that it will expire worthless. It's the same a laying a horse at 10/1 not to win. If the odds are priced correctly, then over the long run you will win 9 times and lose once but the loss will equal the gains made on the previous 9 occassions. So it makes no difference whether you buy or sell options, as you will ultimately break-even before costs.
Consider also the extreme events, so extreme that they cannot be modelled.
DB
But results (per se) are uncorrelated. For example, an up day no matter how large, is no more likely to be followed by another up day than it is likely to be followed by a down day.
I agree what you're saying re large moves, in other words a large move is likely to be followed by another large move, but that is a statement about volatility rather than correlation, surely ?
I've never come accross this theorm in option trading.