Category: hedging

Howard Lindzon on Portfolio Armor

From the comment thread of Fred Wilson’s post Apocalypse and Bubbles:
Me:
[Quoting Bob Warfield] “This one is self-referential because Thiel uses Bubble Logic to argue that you’ve got to bet on the next bubble. Why? Because the alternative is all-out Global War and nobody survives.”[/Quote]
There would seem to be an obvious third alternative (actually, there are [...]

Portfolio Armor versus Black-Scholes

A commenter on another site asked whether it would be simpler to calculate Black-Scholes or another options pricing model in an Excel spreadsheet than to spend three seconds entering a position into Portfolio Armor. My academic finance consultant, the all-but-dissertation Ph.D. candidate in finance who developed Portfolio Armor’s algorithm, offered this response:
Seems like the person [...]

Updates from SF

The weather here has been a welcome break from the heat and humidity back in the New York area. Took advantage of it to run five miles along the Embarcadero, and then added back all of those calories and more at a late dinner at the excellent Barbacco Eno Trattoria. In between, we had the [...]

Contest updates

Thanks again to those of you who voted for Portfolio Armor for iPhone in the StreetApps Challenge. We’re over 50 votes (52 right now), so I owe you guys a 1990s flashback post. I’ll try to get that one up by EOD tomorrow, travel permitting. If you haven’t voted yet, you do so by clicking [...]

The Thompson Reuters StreetApps Challenge

Votes are open in the Thompson Reuters Street Apps Challenge. Here is the gallery of competing apps, and below is my entry in the contest, the Portfolio Armor iPhone app. If you like it, I’d be grateful if you clicked here and voted for it (if you’re not a Facebook user, you’ll have to take [...]

A few more updates

– I sold my FBP puts today for $2.10, for a gain of 23.5%, as the balance of risk versus reward started to look unfavorable.
– I picked up a few more puts on BHP as part of my hedge against a drop-off in Chinese iron ore demand. Now that I’m hedged out [...]

Taking advantage of an up day (so far)

Earlier today, I bought few ITM puts on HOV, in lieu of shorting it.
I also took advantage of BHP’s small bounce today to buy a few puts on it, the $62.50 strike Jan 11s @$7.40 each, extending my hedge against a drop-off in Chinese iron ore demand (which would adversely impact AYSI). Because I [...]

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Sites of Interest

Algorithmic hedging tool for stocks and ETFs

Tools and ideas for short sellers

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Eminent securities attorney, irreverent Wall Street blogger, and proprietor of BrokeandBroker.com.

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