*Aug23 Dollar-yen open Y109.57, range...>

YEN SUMMARY: *Aug23 Dollar-yen open Y109.57, range Y109.37 to Y109.83

*Dollar-yen opened in Asia at the upper side of yesterday's Y108.89 to Y109.65

range, where broad-based dollar strength was the main theme

*Japanese retail demand pushed the dollar higher from Y109.55 to Y109.83 before

meeting supply from both option and Japanese exporters

*Reports that Trump had threatened a government shutdown over the border wall

funds saw the dollar under pressure, he also said, 'we will probably end up

terminating NAFTA at some point, the dollar dropped quite quickly from around

Y109.70 to Y109.37.

*Heading toward the European open the dollar remained on the defensive at

Y109.48

*Option expiries for today include; Y109.50($920mn) and Y110.00($635mn)

*Support is seen at Y109.37 (38.2% Y108.64-109.83), while Asia's high of Y109.83

provides initial resistance.