“20. By reason of the breaches of trust set out above, the claimant has suffered loss and damage in the sum of US$2 million . “21. Accordingly, the claimant is entitled to and seeks: 21.1. Equitable compensation in the sum of US$2 million . 21.2. An account as to the use made by the Defendant of the trust assets and all profits made by the Defendant in respect of those assets. 21.3. Compound, alternatively simple, interest on all sums pursuant tosection 35A of the Senior Courts Act 1981 and/or the Court’s equitable jurisdiction at a rate of 8% or at such rate and for such period as the court shall think fit.”
“549. It can be seen that these citations are concerned with cases where the rate of interest was based on the rate at which the claimant can borrow, and decide that one does not look at the individual claimant but at what a class of claimant (small business, large business and the like) can borrow at. I accept that the borrowing rate, which has been said to be suitable in commercial cases, is not necessarily suitable in all types of case (see Hildyard J’s detailed analysis of this point in Challinor v Bellis [[2013] EWHC 620 (Ch) ]) and that where the claimant that is out of pocket is a trustee that would otherwise have invested in proper trustee investments, the appropriate rate would not be the borrowing rate but a rate to reflect the return on such investments. I also accept that this would apply to Kea which although not itself a trustee is a vehicle for trustee investment. However I do not see that this affects the principle that in assessing such a rate the Court adopts a broad brush approach based on what a person with the general characteristics of the claimant might have received by way of investment on trustee investments, not a rate that reflects what the individual claimant would itself have done. 550. That is I think supported by the usual practice in cases where interest is sought against defaulting trustees. The Court does not as far as I am aware attempt to investigate what other investments the particular trust fund might have made, but adopts, on a broad brush basis, a rate that is intended to be a proxy for the rate of return that trustee investments would normally earn. …”
“47. ….for the reasons I have given above, it seems to me both logically correct and principled and consistent with the early cases that the rate should reflect the fact that, by depriving the fund of capital, the defaulting trustee also deprives the fund, until the capital loss has been made good, of the income that such capital would have earned. That points to a rate based on a suitable investment return.”
“49. I conclude that in the ordinary case of a defaulting trustee, who is liable to make good a capital loss to the fund, the equitable interest to be awarded can be regarded as a means of compensating the fund for the income that has been lost to the fund. The rate of interest to be awarded can, therefore, be one that acts as a proxy for the investment return that trust funds with the general characteristics of the fund in question could expect to make.”
“16. As its name indicates, US Prime is the rate offered by US banks to their most creditworthy business customers. In these circumstances, it would not be appropriate to have a default rule that there will always be an uplift over and above US Prime in an interest award. In some cases, even without evidence, it will be obvious from the general characteristics of the claimant that it would have to pay a higher rate to borrow US$ than a bank’s most creditworthy customers. In such cases, the court may well be persuaded to order interest at US Prime plus 1% or US Prime plus 2% for certain types of claimant. Higher uplifts than that are likely to require evidence to justify them.”