Waterfall

A waterfall is the specified order in which proceeds from a resolved position, or from an entire portfolio's resolutions over a period, are distributed among the different layers of capital that financed it, typically senior secured debt first, then subordinated or mezzanine capital, then equity or residual claimants last. In legal-asset finance, waterfall mechanics determine how a settlement or award distribution's actual realized value translates into what each capital layer actually receives, and the waterfall's structure interacts directly with the underlying outcome and duration distributions: a waterfall with thin equity protection can leave residual claimants exposed to the full width of a settlement band's downside tail, even where the senior layers are comfortably protected by a conservative advance rate. Institutions evaluating a position in any layer of a legal-asset waterfall should model their own layer's exposure against the full distribution, not only against the expected or median outcome, because a waterfall's structure can concentrate tail risk disproportionately in a specific layer in ways that are not visible from the position's headline expected return alone. Waterfall mechanics also interact with duration: a position that resolves later than expected can shift which layer actually bears the cost of extended capital deployment, depending on how the facility's terms allocate that cost across the waterfall's layers.