Peeter Koppel: Beware, trillionaire!

Columnist Peeter Koppel writes about Elon Musk, who became the world's first trillionaire last week after SpaceX went public and the value of his stake reached an unprecedented high on Forbes. Koppel cautions that this is paper wealth, not actual assets sitting in cash boxes at someone's home.

One man became a trillionaire for the first time in world history last week, at least on paper. Columnist Peeter Koppel explains what this actually means and why it pays to keep your head clear.

It's not as if someone had wheelbarrows full of hundreds of billions of dollars delivered to someone's door. SpaceX went public, Elon Musk's stake received an official price tag, and Forbes' ranking of the wealthy featured a figure that no one there had seen before.

Paper wealth vs actual assets

Trillionaire status is an accounting phenomenon: the market revalued in a single Friday morning something that the man already owned. This means the wealth did not emerge from nothing overnight, but simply became visible and measurable on a portion of the market that was not previously traded publicly.

With such figures, it is worth remembering that the value of a stake can fall just as quickly as it rises; the price on the stock exchange is precisely as high as buyers currently wish to pay. A trillion today does not mean a trillion tomorrow.