The Compact Linear Collider (CLIC) is an option for a future
electron-positron collider operating at centre-of-mass energies from a
few hundred GeV up to 3 TeV. This contribution discusses the Higgs and
BSM physics reach of CLIC operating in several energy stages. The
presented results are based on physics benchmark analyses using full
detector simulations, several of which have been completed recently.
The initial stage of operation near the top quark pair production
threshold allows to study Higgs boson production in the Higgsstrahlung
and WW-fusion processes, resulting in model-independent determinations
of the Higgs couplings. High-energy operation, here assumed at 1.4 and 3
TeV, gives access to rarer Higgs decays and production processes such as
double Higgs production, which is sensitive to the Higgs self-coupling.
In the second part of the presentation, examples for direct and indirect
new physics searches are given. In both cases, the achievable
sensitivities generally rise with the centre-of-mass energy.