Defined benefit pension funds, having leveraged billions of pounds of their gilt positions using repos, were exposed to a fall in prices. This occurred in September 2022 and large losses were sustained. It is not permissible for pension funds to leverage their assets using loans or derivatives (other than for narrow specific purposes). The question then arises of whether repos are loans or derivatives, or something entirely different. Who bears the losses may well be dependent on the answer. The author’s conclusion is that repos are properly either loans or derivatives.