Quark distributions at $x>1$

Inclusive lepton scattering has been used to measure nuclear structure functions from a Q$^2$ of a few to 200 GeV$^2$. We have previously used target-mass corrections to remove scaling violations for finite Q$^2$, yielding excellent agreement between almost all existing data sets. We will present our recent analysis of nuclear structure functions at high $x$ in terms of QCD and discuss possible sources of remaining disagreement as well as upcoming measurements.