  In this work we study the topological rings of two dimensional (2,2) and
(0,2) hybrid models. In particular, we use localization to derive a formula for
the correlators in both cases, focusing on the B- and B/2-twists. Although our
methods apply to a vast range of hybrid CFTs, we focus on hybrid models
suitable for compactifications of the heterotic string. In this case, our
formula provides unnormalized Yukawa couplings of the spacetime superpotential.
We apply our techniques to hybrid phases of linear models, and we find complete
agreement with known results in other phases. We also obtain a prediction for a
certain class of correlators involving twisted operators in (2,2)
Landau-Ginzburg orbifolds. For (0,2) theories, our argument does not rely on
the existence of a (2,2) locus. Finally, we derive vanishing conditions
concerning worldsheet instanton corrections in (0,2) B/2-twisted hybrid models.
