European closing auction volumes increased heavily over the past years, in particular sincethe introduction of MiFID II in 2018. We show that this increase in closing auction volumesince 2018 is driven by an increase in limit order volume and that it contributes to moreefficient price formation....

Contingent claims with payoffs depending on finitely many asset prices are modeled as elements of a separable Hilbert space. Under fairly general conditions, including market completeness, it is shown that one may change measure to a reference measure under which asset prices are Gaussian and...