I really don't know your point is. First you ask if the OP thinks MM are dumb and misprice options and now it's a question of how much IV declines.Quote from Rodney King:
Of course it does, because stocks move more on earnings days than random days. The question is whether the post-earnings decline in IV is too much or too little.
Quote from spindr0:
I really don't know your point is. First you ask if the OP thinks MM are dumb and misprice options and now it's a question of how much IV declines. There are multiple questions in an EA IV play - the strategy, IV change as well as UL price movement... and sometimes, time. Lots of moving pieces, all of which have nothing to do with mispricing.
Quote from rosy2:
you have to have a large enough position to make any vol change meaningful. short a one lot straddle when vol comes in probably doesn't even cover retail commissions
Quote from Rodney King:
I'll try a third time, then give up... Yes, IVs tend to decline after market-moving news such as earnings. But is there any edge to selling options prior to earnings? Options are expensive pre-earnings for a reason -- because the stock is unusually likely to move on earnings day. The question is whether they're <i>too</i> expensive. For all OP knows, they could be <i>under</i>priced on average.

Quote from spindr0:
Even one naked straddle can make you good money when your commission per contract is under a dollar and there's a post earnings IV collapse.
At times there is an edge, namely when near month IV expands far more than the next month and it's a volatility play on both coming down, more so the former. It's an attempt to capture the disparate rates of contraction.Quote from Rodney King:
I'll try a third time, then give up... Yes, IVs tend to decline after market-moving news such as earnings. But is there any edge to selling options prior to earnings? Options are expensive pre-earnings for a reason -- because the stock is unusually likely to move on earnings day. The question is whether they're <i>too</i> expensive. For all OP knows, they could be <i>under</i>priced on average.
Of course a naked straddle can lose even if IV contracts... perhaps even a lot of money if the underlying makes a large move post EA. Because you can lose money doesn't negate the fact that you can make money from IV contraction.Quote from rew:
If IV was high that was because there was an expectation of a large move up or down after earnings. If that in fact happens, your short straddle can still lose money despite the collapse in IV.
It is not easy at all to make money on earnings. You have to be smarter than the MM. [/B]