The optional approach makes a paradigm shift compared to traditional finance: instead of penalising risk, it transforms uncertainty (volatility) into a lever for value creation.

Here’s how this mechanism works:

1. The principle of asymmetry of gains and losses

In traditional finance, risk is perceived negatively because it increases the cost of capital (WACC), which reduces the present value of future flows. Conversely, in the real options approach, the value of the option increases with the risk (volatility) of the underlying asset.

• Mechanism: To hold an option is to have the right, but not the obligation, to act. This allows the company to capture upside risk while protecting against downside risk by choosing not to exercise the option.
• The “Heads or Tails” example: this mechanism is illustrated by a game of heads or tails with low or high stakes (+/- €1,000 or +/- €100,000). If the player is forced to play and assume all the situations arising from the game (gain and loss), the risk of loss is repulsive. If the player is allowed to withdraw after seeing the result, the volatility becomes purely beneficial: he only keeps the winning draws. It is this asymmetry that creates value.

2. The Value of Managerial Flexibility (ENPV)

Uncertainty creates value because it puts a value on management flexibility. The difference between the value of a fixed project (classic NPV) and that of a flexible project is the value of the option.

• The NPV: The Expanded Net Present Value is equal to the classic NPV + the value of the flexibility.
• Concrete application: In an uncertain investment project (e.g. launch of a new product), flexibility makes it possible to transform an unprofitable project (negative NPV) into a value-creating project. For example, by introducing the possibility of stopping the project if costs prove too high or adjusting industrial capacity if the market is smaller than expected, we cut potential losses (the “downside“) while maintaining the hope of high gains.

3. The two levers of value creation through uncertainty

Some authors distinguish between two categories of options where uncertainty is exploited differently:

• Process Optimization Real Options (PORO): the uncertainty relates to volumes or prices (e.g. commodity prices). The value comes from the ability to adapt the process: temporarily close a mine if prices are low (limit losses) and reopen it when they soar (maximize gains). Here, value comes from the reversibility of decisions in the face of market volatility.
• Capturing Future Growth (GORO – Growth Opportunities Real Options): The uncertainty is about the very existence of future markets. By investing in intangible assets (R&D, brand, human capital), the company creates “bridgeheads” or platforms to capture opportunities that are still unknown. Uncertainty is a source of value here because it holds unlimited earning potentials (like a blockbuster drug or a new technology market).

4. The distinction between “good” and “bad” risks

For uncertainty to create value, the nature of risk must be distinguished, especially in R&D:

• Destructive risks: Technological failure or the arrival of a competitor. These are risks that destroy value and must be minimized.
• Creative risks: Uncertainty about the size of the market or possible new applications of a technology. It is this volatility (the potential for positive surprise or “upside”) that increases the value of the option.

In short, uncertainty becomes a source of value when the company adopts an “optional mentality”, i.e. it invests (by paying a premium, such as the additional cost of a flexible factory) to give itself the right to change course according to future events.