1. The 'Risk and reward profile' section of the key investor information document shall contain a synthetic indicator, supplemented by:

(a) a narrative explanation of the indicator and its main limitations;

(b) a narrative explanation of risks which are materially relevant to the UCITS and which are not adequately captured by the synthetic indicator.

2. The synthetic indicator referred to in paragraph 1 shall take the form of a series of categories on a numerical scale with the UCITS assigned to one of the categories. The presentation of the synthetic indicator shall comply with the requirements laid down in Annex I.

3. The computation of the synthetic indicator referred to in paragraph 1, as well as any of its subsequent revisions, shall be adequately documented.

Management companies shall keep records of these computations for a period of not less than five years. This period shall be extended to five years after maturity for the case of structured funds.

4. The narrative explanation referred to in paragraph 1(a) shall include the following information:

(a) a statement that historical data, such as is used in calculating the synthetic indicator, may not be a reliable indication of the future risk profile of the UCITS;