Lets talk variance

an underlying can fall to a price that isn't listed as a strike price on the option chain for the expiration you're trading on. Therefore you couldn't have placed a butterfly spread there for the price to potentially pin. An example..AAPL stops offering strike below 105 for front-week. If it collapsed to $90...?

in conclusion, by definition, you still run the risk of it not pinning and going bust (in this ridiculous hypothetical)

Not exactly sure what you mean? AAPL has strikes listed many st.dev away from spot.

Are you talking more about the timing of the event? One can structure butterflies across the term-structure as well, not just ATMF.
 
Not exactly sure what you mean? AAPL has strikes listed many st.dev away from spot.

Are you talking more about the timing of the event? One can structure butterflies across the term-structure as well, not just ATMF.

look, it reallly doesn’t matter. It was an example saying that just because a specific spread(I.e. vertical/butterfly/etc has clipped the left tail (in payoff space of the specific trade), doesn’t mean your left tail is clipped in payoff space of the portfolio. Need to make sure you’re left tail exposure (if any) in P/L space at portfolio level is hedged. That’s all.
 
look, it reallly doesn’t matter. It was an example saying that just because a specific spread(I.e. vertical/butterfly/etc has clipped the left tail (in payoff space of the specific trade), doesn’t mean your left tail is clipped in payoff space of the portfolio. Need to make sure you’re left tail exposure (if any) in P/L space at portfolio level is hedged. That’s all.

I think most 60/40 porftolios really need to focus on what you're talking about.

For example in my portfolio the risk is to the right tail, not left. So it depends personally, thanks for responding though!
 
Looking back, would you rather give up some of those returns to avoid large losses such as today’s? Would that have been worth it to you, in hindsight? I think now you have your answer.
All things considered, short answer is yes. Even including returns year to date, overall I am still better off than buy and hold index funds.

Some backtests and simulations showed that the answer depended on if I were able to compound some or all of the gains during good years.

Perhaps, time itself is a hedge?
 
1. Not necessarily, depends what you mean. If I have $100,000 and all are deployed in, say, butterfly spreads, all cash deployed at the same time...i can go bust in a market crash because everything correlates and falls down simultaneously. This is no hedge.....well, The Short options in a butterfly are hedged with the long options, but on a portfolio level you may not be hedged as is the case in the example I just presented. You still busted.

2. You buy a car and you buy car insurance with it. If the car insurance is too expensive, do you buy the car? If you’re mentally sane, no. Let me refer you to this video. Please watch for your benefit https://www.bloomberg.com/news/videos/2016-05-12/nassim-taleb-on-the-importance-of-probability
1. I don't know. Putting all $100,000 in 100 flies when everything is somewhat correlated is still better than putting $100,000 in one fly? But if all you have is $100,000 and put all the money in flies is perhaps not smart.

2. Similar to buying puts, if the car insurance costs an arm and a leg, it might be better off self insured. A good example is earthquake insurance in California, so expensive! I don't have earthquake coverage, instead spent $ to make it more earthquake proof.

Overall I should take a careful look at what you wrote and consider tail protection. Time is not on my side this time around.

Thank you for your comments, I really appreciate them.
 
1. I don't know. Putting all $100,000 in 100 flies when everything is somewhat correlated is still better than putting $100,000 in one fly? But if all you have is $100,000 and put all the money in flies is perhaps not smart

What do you mean "when everything is somewhat correlated"?

Many markets are negatively correlated..

Also I don't see putting $100k in many flies a bad idea at all. If you know what you're doing and size it right you can make a ton of money. It all depends.
 
2. Similar to buying puts, if the car insurance costs an arm and a leg, it might be better off self insured. A good example is earthquake insurance in California, so expensive! I don't have earthquake coverage, instead spent $ to make it more earthquake proof.

And if one doesn’t have the $ to build an “earthquake proof” home (if that’s even possible), then one shall not live in an area that’s known for having earthquakes, or near fault lines.
 
And if one doesn’t have the $ to build an “earthquake proof” home (if that’s even possible), then one shall not live in an area that’s known for having earthquakes, or near fault lines.
Sir,

I spent the last week running BSM simulations and backtests SPY tail risks using my newly learned VBA-excel programming skills (since I don't have historical option prices, I made some simple assumptions on IV - historical, historical average, term structure, skew...., dividend rates and risk free rates):

1. Tails were quite expensive to protect but long OTM puts did protect short put-write in 2000-03 and 2008-09 from ruin. So, you are right. :thumbsup:

2. There is another way to protect put-write: Do what Taleb said: 80% low risk bonds and 10-20% put-write. Though the returns in this case weren't spectacular.

3. Hunting tails could payoff handsomely if you didn't mechanically buy tails but did it with some good judgement. This is of course obvious but beyond my capability.

4. In general, in the last decade, because of the bull market, buying calls or writing puts even with eyes closed were winning strategies. No wonder a newbie like me could make money.

5. What's next? o_O

Regards,
 
And if one doesn’t have the $ to build an “earthquake proof” home (if that’s even possible), then one shall not live in an area that’s known for having earthquakes, or near fault lines.
Or live in an RV if you love SoCal or the beaches. :)
 
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