  Boix-De Stefani-Vanzo defined the notion of level for a smooth projective
hypersurface over a finite field in terms of the stabilisation of a chain of
ideals previously considered by \`Alvarez-Montaner-Blickle-Lyubeznik, and
showed that in the case of an elliptic curve the level is 1 if and only if it
is ordinary and 2 otherwise. Here we extend their theorem to the case of
Calabi-Yau hypersurfaces by relating their level to the $F$-jumping exponents
of Blickle-Musta\c{t}\u{a}-Smith and the Hartshorne-Speiser-Lyubeznik numbers
of Musta\c{t}\u{a}-Zhang.
