  We address a longstanding question of whether ABJM theory has Wilson loop
operators preserving eight supercharges (so 1/3 BPS). We present such Wilson
loops made of a large supermatrix combining two 1/2 BPS Wilson loops. We study
the spectrum of operator insertions into them including the displacement
operator and several others and study their correlation functions. Another
natural construction arising in this context are Wilson loops with alternating
superconnections. This amounts to including "defect changing operators" along
the loop, similar to a discrete cusp. This insertion is topological and
preserves two supercharges. We study the multiplet of this operator and how it
can be used to introduce further operators. We also construct the defect
conformal manifold arising from marginal defect operators.
