U.S. Weekly Jobless Claims Unexpectedly Drop To 187,000

*Swiss Franc Falls To 2-day Low Of 170.53 Against Yen

*Swiss Franc Drops To 0.8677 Against U.S. Dollar

*U.S. Housing Starts Slump 4.3% In December, Building Permits Jump 1.9%

*Philly Fed Index Rises To -10.6 In January