With a subscription web app, when someone subscribes, you have their email address. That’s not the case with an iOS app, since they are downloading it from Apple. I have email addresses for the relative handful of Portfolio Armor iOS app users who’ve e-mailed me, but not for the rest of them.
That presented something of [...]
More functionality isn’t always better
Last week, a developer/entrepreneur (and MBA, as his email signature advertised) asked me to look at his iPhone finance app. He had heard about Portfolio Armor, and mentioned that his app “covered the full spectrum of corporate finance, including options”. So I checked it out, and indeed it did include [...]
On 10.08.11, In Business and Entrepreneurship, Investing, Market Neutral Investing, Marketing, hedging, by David Pinsen
On 10.08.11, In Business and Entrepreneurship, Culture, Musings memories and observations, by David Pinsen
The most surprising thing about the reactions to Steve Jobs’s passing has been the outpouring of love toward the memory of a man who didn’t do the sorts of things that rich men do when they want to be loved by strangers. Jobs has been treated as something of a secular saint by Apple fans, [...]
I had asked a quant on the Portfolio Armor team recently for a rule of thumb about the best time to sell options before time decay accelerates (so, for example, an investor could roll his protection while recouping some of the cost of hedging). He said he’d check the academic finance [...]
On 09.28.11, In Business and Entrepreneurship, Investing, Short Selling, Speculations, hedging, by David Pinsen
- Gold: sold those GLD puts for a 101.5% gain on Tuesday; reversed polarity and bought a few calls. No strong opinion on gold, just thought I’d try this after seeing Tim Knight’s end-of-day video on Monday, which suggested GLD might have hit a support level at the bottom of a channel (though his video [...]
In hindsight, there’s a certain narrative arc to these three articles about hedging gold.
8/4: “Why you should consider hedging if you own gold”
8/23: “Gold Goes Parabolic, Hedging Costs Rise”
9/23: “Gold Gets Hammered“
Hedging Tool for Stocks & ETFs
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Algorithmic hedging tool for stocks and ETFs
Also available as an iPhone App:
Tools & Ideas for Short Sellers
