(53)For an equity portfolio to be treated as long-term equity, insurance or reinsurance undertakings are to demonstrate that they fulfil the conditions set out in Article 105a(1) of Directive 2009/138/EC. Where such an undertaking belongs to a group, it would be too burdensome for that group to reassess the conditions for long-term equity at group level. Therefore, unless there are significant group-wide liquidity risks not captured at the level of individual undertakings or significant intragroup transactions, equity investments which are treated as long-term equities by an insurance or reinsurance undertaking should also be treated as such when calculating the solvency capital requirement of the group to which that undertaking belongs.