SunTrust analyst Ken Sill lowered his price target on U.S. Silica to $28 after its worse than expected Q3 results but kept his Buy rating, saying that Q4 will likely "mark the bottom" for the U.S. frac sand market. The analyst expects completion activity slowdown to last until early 2019 and the frac sand capacity to rise in the first half of the year, leading to a ramp in demand in the second half of 2019. Sill believes that investors should be "buying" U.S. Silica given its valuations coming "within a few percentage points of prior cycle lows".