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1. There's usually a limited number of shares to short an IPO

2. Given the extreme volatility of IPOs and small amount of past history on a company's fundamentals, this will essentially be gambling with the potential of unlimited downside

Good luck!



Shorting any stock always has the potential of unlimited downside. The only thing that makes this different is your personal evaluation of the riskiness (i.e. - "essentially gambling"). All stock positions are "essentially gambling" when taken to the extreme.


you can buy puts and easily limit your down side.

edit: whoever downvoted this, do you not understand how buying puts works? your risk is capped at the money you spent on the contracts. you can only lose that amount.


That sounds like hedging a bad idea with another bad idea. Options expire, so not only do you have to be right that the stock will go down, but you also have to be right that it will go down before your options expire. The further away the expiration, the higher you'll be paying for implied volatility. This sounds like a terrible strategy for a hunch that regulations are going to eventually impact Airbnb at some fuzzy point in the future.


I couldn't help but notice that by that logic auto insurance is a bad idea. Not only you have to be right that you get into an accident. But also you have to get into that accident before contract expires.

Would he pay premium for the options? - Sure. But that buys something. Limiting the loss vs shorting for example. Besides shorting isn't exactly free either.


Auto insurance is risk management, not investing. Auto insurance doesn't expire. OP can keep being wrong for years, buying options over and over until they're no longer liquid. I guess you can do that with any stock. The market already prices that in (implied volatility as I mentioned).

The point is, you don't use options for investment decisions where you don't know the timing of when you'll be right, unless you're hedging another investment.


>Auto insurance doesn't expire.

Every single auto insurance in US I had is a 6 or 12 month contract which expires at the end. The expiration time/date is very specific to the minute. You usually get a new contract after that which you can choose to pay premium for or loose coverage otherwise.


Yes, my bad, you are correct on that. I meant more that options don't renew. I came to edit it after I thought that through but too late I suppose.


options renew in the same way any insurance renews after the contract is up -- you pay additional premium for additional duration.


he doesn't know what options really are. every comment he's made demonstrates that.


I am pretty sure what the parent is saying is to buy puts in lieu of shorting. There is no hedging here, just limiting downside.


Yes I'm aware, since they suggested puts instead of calls. I'm not sure what your point is since my argument applies in either case. It's much less probable to be right about both price and timing. You won't have unlimited losses, but you will likely be wrong and lose money, unless you're the one writing the regulations.


> It's much less probable to be right about both price and timing

But that's priced into any analysis of the puts. If you're just arguing that speculation in general isn't prudent, then I'm with you, but you can't really say that a particular bet would be a "terrible strategy" (if you mean that in a negative EV sense?) when we don't know what the prices will be.


exactly this.


I mean, when you short you also pay borrowing fees, so you are still paying some premium. You can also buy OTM calls to limit your downside.


An options market won't exist until many months after the IPO. Probably 3-6 months at the least.




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