Post-Money Valuation

When a young company raises money from investors, a price has to be agreed on beforehand. The investors pay in an amount and receive a stake in the company in return. The post-money valuation is the total value of the company immediately after this payment. It therefore includes the previously agreed value of the company plus the new money that is now sitting in the account. The counterpart is called the pre-money valuation: the value that was set without the new money. The two figures always differ by exactly the amount invested.

Why this figure determines ownership stakes

The post-money valuation determines what percentage of the company the new investors receive. The calculation is simple: the amount invested divided by the post-money valuation. Anyone who pays in 20 million euros, with the company subsequently valued at 100 million, holds 20 percent. The founders and all earlier shareholders share the remaining 80 percent.

A small difference in the valuation shifts a lot. Let’s say the same 20 million flows in at a post-money valuation of 80 million. Then the investors already own 25 percent. For the founders, every round therefore means a loss of ownership share, which is called dilution. A high valuation protects against this because fewer percentage points have to be given up for the same amount of money.

Because the figure looks so large and so easily comparable, it is also used as a status symbol. From a post-money valuation of one billion dollars, people speak of a unicorn. But that says nothing about revenue or profit. It is the price that a small group of investors accepted in a single deal.

The calculation behind the price

First, both sides negotiate the pre-money valuation. Then the new capital is added on top, yielding the post-money valuation. An example: pre-money 80 million, new investment 20 million, post-money 100 million. The order matters, because many negotiations fail precisely over this distinction. If 100 million is understood as pre-money, the post-money valuation comes to 120 million, and the investors receive only about 17 percent.

In practice, the calculation is done via shares, not gut feeling. Ownership is divided into units of ownership, so-called shares or stock. The price per share results from the pre-money valuation divided by the number of existing shares. Additional shares are then issued for the new money at this price. Afterward, the pie is divided into more pieces, but the pie itself has also grown bigger.

A common misconception: that the post-money valuation is an audited market value. It is not. It is a calculated figure from a single deal, often tied to special rights for the investors. A typical clause guarantees investors their money back first in the event of a sale. Such rights make the price per share higher than it would be without them.

Where the figure shows up in AI headlines

Reports about AI companies almost always consist of two figures. First, the amount of the funding round; second, the valuation afterward. A sentence like “the start-up raises 500 million dollars at a valuation of 5 billion” practically always refers to the post-money valuation. From both figures you can calculate yourself that the new investors hold roughly 10 percent.

It gets interesting when comparing several rounds. If the valuation rises from round to round, it’s called an up round. If it falls, it’s a down round, which is considered a bad sign. Among AI model providers, such rounds have recently followed one another often within just a few months, because building data centers consumes enormous sums.

The figure is also relevant for employees. Anyone who receives stock options as part of their compensation can read their calculated value off the latest post-money valuation. However, this can usually only be cashed in upon an IPO or a company sale. Until then, the valuation remains a number on paper.