** NCS Multistage's shares NCSM.O fall as much as 36.6 pct
to a record low of $7.89 after Q3 revenue, profit miss estimates
** NCSM, which makes engineered products and provides
support services for oil and natural gas well completions, is
top pct loser among U.S. stocks
** Quarter hurt by lower volumes of fracturing systems
product sales and services in Canada, where customer activity
fell due to weather, increasing commodity price differentials
urn:newsml:reuters.com:*:nGNX1f4pjW
** Sees elevated pricing differentials in Canada persisting
into 2019 and beyond, resulting in lower customer activity,
pricing pressure for products and services
** Stock has lost nearly half its value this year
(Reporting by Amy Caren Daniel in Bengaluru)
((Reuters Messaging:
Amy.CarenDaniel.thomsonreuters.com@reuters.net))