Weaker-than-expected results took some of the momentum out of this big winner.Expectations were sky-high for Core & Main (CNM -13.50%) coming into earnings. Unfortunately, the news did not match the hype.Shares of Core & Main traded down 14% as of 10:30 a.m. ET after the company missed top- and bottom-line expectations and cut full-year guidance.Rainy days dampen growthCore & Main is a distributor of water products used by municipalities, private water companies, and professional contractors. A big part of ...