Quote from atticus:
There is a fund running automation in which they sell large numbers of atm straddles when the spot hits a strike on the morning of expiration. They average 500-700 positions every third Friday. I've seen their PnL and it's astronomical.
Quote from jones247:
With all due respect, I don't get the logic behind Atticus' system/suggestion to the HF. Dispersion trading with ATM short straddles on the day of expiration while having a plan for assignment thru pin risk does not compute for me. Can someone be so kind as to explain how this makes sense, especially since all time premium is virtually gone.
Walt
Quote from black diamond:
If this is true you would make money on average from selling these straddles and then dumping whatever stocks you pick up on monday.
The dispersion part is really just a hedge against the hopefully rare large market-wide move against you. You buy an index straddle, which is more reasonably priced and liquid than what you sold.

Quote from jones247:
Good try Blackdiamond...
However, short straddles on the day of expiration ATM don't have enough Premium (even if they're overpriced) to enable the HF to earn more than 100% per year. Atticus stated that the objective is to incur an assignment, so you may very well be in the "ball park". I would be highly concerned about a gap against me over the weekend with an assignment at expiration.
It still doesn't add-up to me...
Walt