The High-Altitude Water Cherenkov (HAWC) Observatory is a ground-based
TeV gamma-ray observatory in the state of Puebla, Mexico at an altitude of 4100 m
above sea level. Its $\sim$22,000 m$^2$ instrumented area, wide field of view (2 sr),
and $>$95% uptime make it an ideal instrument for discovering gamma-ray burst (GRB)
emission at $>$100 GeV. Such a discovery would provide key information about the
origins of prompt GRB emission as well as constraints on extra-galactic background light models and the violation
of Lorentz invariance. We present here the results of our current GRB search methods,
which include an all-sky search as well as fast follow-ups of GRBs reported by satellites,
after one and a half years of data with the full HAWC detector.