This article continues the text published in issue V of the journal (2023, 152–158) and examines in more detail the origins of today’s financial constitution of a cooperative under § 73 German Cooperative Act. This norm can be seen as a protective norm for the permanent continuation of the unit of a cooperative with an increasing portion of the reserves remaining in the cooperative. The norm emphasizes the ‘social dimension’ of cooperative reserves. Developments in Austria are also considered. Over time, special protection is required for cooperatives that have existed for more than one generation: for ‘old’ ooperatives. This protection can come from both exceptions in the transformation law and additional – foundation-like – supervision.