** Shares of Limbach Holdings Inc LMB.O down as much as
37% at $5.30 in morning trade
** Stock set to see biggest percentage drop ever, if losses
hold; among top percentage losers across all exchanges
** Co posts Q2 loss of 13 cents/shr vs. analysts' est of a
profit of 19 cents/shr, according to IBES data from Refinitiv;
Q2 hurt by higher expenses - urn:newsml:reuters.com:*:nASB01ZFX
** Loss represents an earnings surprise of -168.4%
** Co has missed profit estimates 6 times in the past 8
qtrs, with the biggest miss in Q1, 2018 (-1300%)
** Despite session's losses, stock up 53% this year vs
Nasdaq's .IXIC 17.3% rise
(Reporting by Bharath Manjesh in Bengaluru)
((Bharath.ManjeshR@thomsonreuters.com; outside U.S. +91 80
6749 8400;))