** U.S.-listed shares of Chinese software co API.O fall
5.4% to $27.90 premarket
** On Monday, co cut its full-year revenue forecast to be
between $159 mln and $161 mln from its previous range of $178
mln-$182 mln urn:newsml:reuters.com:*:nGNX8q58sz
** Co said outlook is subject to impact from uncertainties
around China's new regulation on the tutoring sector
** API swung to Q2 net loss of $15.4 mln vs net income of $3
mln a year earlier
** Up to Monday's close, stock down ~26% YTD
(Reporting by Chavi Mehta in Bengaluru)
((Chavi.Mehta@thomsonreuters.com;))