來源:[1] 房利美宣布對某些CAS票據進行任何及所有要約收購 (https://finance.yahoo.com/news/fannie-mae-ann ...)[2] 房利美啟動22.5億美元CAS票據要約收購 - StreetInsider (https://vertexaisearch.cloud.google.com/groun ...)[3] 房利美啟動超過22億美元CAS票據要約收購 - Investing.com UK (https://vertexaisearch.cloud.google.com/groun ...)