A beta coefficient of 0.3 indicates that the security amplifies only 30% of market movements. Defensive sectors such as healthcare or utilities are generally associated with such betas, as they are less sensitive to economic fluctuations.

Article 411-44-4 of the AMF General Regulation specifies the calculation methods for the amplification capacity of financial contracts using the interest rate beta of the underlying asset.

A beta coefficient of 1.4 indicates that the security amplifies market movements by 40%. This means that if the market rises by 10%, the security will rise by 14%, and vice versa. This type of beta is typical of cyclical stocks, such as those in the automotive or construction sectors, which are more sensitive to economic fluctuations.

Modified duration is obtained by dividing the Macaulay duration by one plus the yield to maturity. This formula allows adjusting the duration to account for interest rate changes.

Financial instruments use different measures to assess their sensitivity. Equities use the beta coefficient, while bonds use duration and interest rate sensitivity. Derivatives use delta to measure their exposure to the underlying asset.

Modified duration is obtained by dividing the Macaulay duration by one plus the yield to maturity. It provides a more precise measure of a bond's sensitivity to interest rate changes.

Macaulay duration is indeed defined as the weighted average of the maturities of discounted cash flows, expressed in years. It measures the sensitivity of a bond to interest rate changes.

Delta represents the underlying equivalent of positions. A delta of 0.8 means the derivative behaves as if it were composed of 80% of the underlying asset. This is consistent with AMF Position DOC-2011-25, which requires derivatives to be taken into account at their underlying equivalent.