** U.S. Concrete USCR.O shares slip 4.8 pct to $58.25,
falling below their 50-day moving avg price
** Short seller Spruce Point Capital releases https://bit.ly/2ItZa9O
"strong sell" report on U.S. Concrete, says it expects a 60-90
pct downside for stock
** USCR had stable margins and an abnormal capex, raising
big red flags - Spruce Point
** Says USCR had many similarities with two of the broker's
"most successful" commodity shorts - Caesarstone CSTE.O and
China Integrated Energy
** As of April 30, 21.6 pct of U.S. Concrete's free float
was shorted, as per TR data
** Shares of other building materials companies also edge
lower - Vulcan Materials VMC.N 0.3 pct, Martin Marietta
MLM.N 1 pct and Eagle Materials EXP.N 0.03 pct
** USCR shares down 30.4 pct this year
(Reporting by Shreyashi Sanyal in Bengaluru)
((RM: Shreyashi.Sanyal.thomsonreuters.com@reuters.net))