** Shares of buy now, pay later (BNPL) co Affirm Holdings AFRM.O up 4% to $59.05 before the bell after expanded partnership with Liberty Mutual

** AFRM says Liberty Mutual Investments (LMI), asset-management arm of the insurer, to upsize loan purchasing program and will buy up to $750 mln of AFRM's loans through Jun 2027

** Over time, LMI expects to invest up to $5 bln in the program, AFRM says

** Last month, private-credit manager Sixth Street agreed to purchase up to $4 bln of ARFM's loans, and investment unit of insurer Prudential Financial PRU.N completed $500 mln financing with the BNPL co

** In Nov, AFRM reported narrower net loss on 41% yr/yr jump in rev as its active customers count rose 15% to 19.5 mln

** Through Thurs close, AFRM shares off ~7% to begin 2025. Stock has more than doubled over the past six months

(Lance Tupper is a Reuters market analyst. The views expressed are his own)

((lance.tupper@tr.com 1-646-279-6380))