Crabtree Columns for Interactive Brokers Asset Management.

October 2017

Meat substitutes have come a long way. But will the new “fake meat” companies be smart enough to compete on value and not quality?

Meat the Future

August 2017

When Mercedes and Porsche go racing, it isn’t just for the glory. It’s for the R&D. OK, the glory is pretty glorious.

Porsche and Mercedes switch lanes

July 2017

I think I redefined “Helicopter Parent” when I put a tracking device on my daughter when she went to summer camp.

Find my iDaughter

May 2017

Even after this big run, tech valuations a reasonable and more tech companies are generating cash.

Tech bubble trouble?

March 2017

Unless you’re an investment banker or an institutional investor, IPOs are not for you.

The trouble with tech IPOs

September 2016

Tesla’s purchase of SolarCity is a cynical, despicable thumb in the eye by Elon Musk to investors everywhere.

Blinded by SolarCity

July 2016

You’d have to be crazy to think Uber is worth $63 billion. At that price, only retail investors are going to be taken for a ride.

Uber’s uber-valuation

February 2013


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