NEW YORK--(BUSINESS WIRE)--Fitch Ratings has assigned the following ratings and Rating Outlooks to FREMF 2015-K46 Multifamily Mortgage Pass-Through Certificates and Freddie Mac Structured Pass-Through Certificates, Series K-046. FREMF 2015-K46 Multifamily Mortgage Pass-Through Certificates --$147,457,000 class A-1 'AAAsf'; Outlook Stable; --$1,148,447,000 class A-2 'AAAsf'; Outlook Stable; --$1,295,904,000* class X1 'AAAsf'; Outlook Stable; --$132,964,000 class B 'BBB+sf'; Outlook Stable; --$39