norwegian cruise line holdings ltd nclh said thursday it is proposing to offer 500 million of senior secured bonds that mature in 2028 in a private offering proceeds will be used to repay term loans and a senior secured credit facility that matures in january of 2024 the bonds will be backed by interests in 13 of the company’s vessels the stock was down 25 premarket and has fallen 27 in the last 12 months while the sp 500 spx has fallen 13